A device and method for performance verification of an electromagnetic field compound-powered passive sensor

Abstract

The application discloses a device and method for electromagnetic field composite energy-taking passive sensor performance verification, comprising a verification box, the inside of the verification box is provided with a double-channel excitation source for outputting magnetic field excitation and electric field excitation, the double-channel excitation source comprises high-voltage electrode plates installed on the left and right inner walls of the verification box, two symmetrical holders fixed at the bottom of the verification box, a convex base fixed at the top of the two holders, and a Helmholtz coil installed at the top of the convex base. The application can simultaneously or independently excite the fundamental wave and the harmonic wave by setting the magnetic field and the electric field as the double-channel excitation structure of vertical intersection, so as to generate electromagnetic composite fields with different waveforms and different phase angles. After a period of electromagnetic field excitation, the composite energy-taking sensor is provided with an excitation environment, so that the sensor performance in various scenes is simulated.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of power equipment detection, in particular to a device and method for performance verification of an electromagnetic field composite energy-taking passive sensor. BACKGROUND

[0002] Energy-taking passive sensors play a key role in power systems, providing power for sensors and related equipment by collecting energy from the environment. These sensors can utilize various energy sources, such as solar energy, thermal energy, mechanical vibration, and radio frequency energy, to convert into electrical energy, thereby achieving self-power supply. For example, a current energy-taking temperature sensor utilizes the principle of current-induced power generation to obtain induced energy by winding a coil around a long conductor.

[0003] A current energy-taking temperature sensor verification device disclosed in Chinese Patent No. CN218724888U includes a verification box, a platform plate, a conductor placed on the platform plate, a first connector, a second connector, a current generation assembly, an upper computer, and a communication module that reads data from the measured current energy-taking temperature sensor and transmits it to the upper computer. The first connector and the second connector are detachably electrically connected and can realize the verification of the current energy-taking temperature sensor by integrating the required current generation assembly, conductor, and other components.

[0004] The above technical solution still uses a single field strength excitation method in the operation process, which relies on gradually increasing the external field strength to observe the starting threshold of the sensor. However, in actual environments, sensors may face various complex excitation conditions, making it difficult to analyze the power of the sensor. Therefore, a multi-field strength measurement method has been developed. This method generates a composite field by boosting the spatial magnetic field and electric field. However, this method cannot adjust the waveform and phase of the applied field. In practical applications, energy-taking sensors may encounter different frequencies, waveforms, and phases of excitation, which makes it difficult for this method to reflect the true performance of energy-taking sensors under these conditions. SUMMARY

[0005] The purpose of the present application is to provide a device and method for electromagnetic field composite power passive sensor performance verification, which adopts a Helmholtz coil to generate a uniform magnetic field, a high-voltage plate to generate a uniform electric field, and two field strengths to be placed vertically to make the magnetic induction lines and electric field lines cross vertically, simulate the high-voltage environment in the field, form a double-channel excitation structure of output magnetic field excitation or electric field excitation, realize the excitation of fundamental wave and harmonic wave alone or simultaneously, adjust different phase angles and harmonic ratios, and control the Z-axis height and Y-axis position of the power sensor in the excitation environment by a Y-axis double-chain wheel feeding module, a Z-axis double-belt wheel lifting traction module, a sliding rotary drive unit, a worm gear and worm reduction motor, etc., to accurately position the power sensor at the center of the electromagnetic composite field, so as to solve the problems in the above background art.

[0006] To achieve the above purpose, the present application provides the following technical scheme: a device for electromagnetic field composite power passive sensor performance verification, comprising:

[0007] A verification box is internally provided with a double-channel excitation source for outputting magnetic field excitation and electric field excitation, which comprises a high-voltage electrode plate installed on the left and right inner walls of the verification box, two symmetrical seats fixed on the bottom of the verification box, a convex base fixed on the top of the two seats, and a Helmholtz coil installed on the top of the convex base, wherein the Helmholtz coil and the high-voltage electrode plate are placed vertically to generate magnetic induction lines and electric field lines that cross vertically.

[0008] A mountain-shaped lower slide plate is slidingly installed on the lower surface of the convex base, the back of the mountain-shaped lower slide plate is fixed with an upward extending right-angle rack, Y-axis double-chain wheel feeding modules are installed on the left and right inner walls of the verification box to drive the mountain-shaped lower slide plate to move along the Y-axis, a matrix support structure is installed on the top of the mountain-shaped lower slide plate and penetrates the outside of the convex base, and a stage for supporting the electromagnetic field composite power passive sensor is slidingly installed on the matrix support structure, a Z-axis double-belt wheel lifting traction module is arranged between the right-angle rack and the mountain-shaped lower slide plate to drive the stage to slide along the Z-axis, and a sliding rotary drive unit is installed on one side of the outer wall of the verification box to drive the Z-axis double-belt wheel lifting traction module to work.

[0009] A PLC controller is installed on one side of the surface of the verification box, and the output end of the PLC controller is electrically connected with the input ends of the Helmholtz coil, the Y-axis double-chain wheel feeding module, the matrix support structure, the sliding rotary drive unit, and the high-voltage electrode plate.

[0010] Preferably, the two sides of the mountain-shaped lower slide plate surface are integrally formed with side convex plates, and the mountain-shaped lower slide plate surface between the two side convex plates is fixed with a middle convex plate, and the upper surface of the side convex plate is provided with a double shaft guide structure for maintaining the sliding connection state between the lower surface of the convex base.

[0011] Preferably, the double shaft guide structure comprises two lower end seats fixed on the lower surface of the convex base, a dovetail guide rail fixed on the upper surface of the middle convex plate, and rollers rotatably installed on the left and right sides of the bottom end of the lower end seat, and the dovetail guide rail and the rollers are in sliding fit.

[0012] Preferably, the right-angle frame comprises a lower grid frame fixed on the back of the mountain-shaped lower slide plate, a vertical plate fixed at the top end of the lower grid frame, and trapezoidal longitudinal arms fixed on the surface of the vertical plate, and the Z-axis double belt wheel lifting traction module is arranged between the two trapezoidal longitudinal arms.

[0013] Preferably, the matrix support structure comprises support rods fixed at the front and rear positions of the top ends of the two middle convex plates, and rubber sleeves slidably sleeved on one end of the surface of the support rods, and the top end planes of the support rods and the upper surfaces of the trapezoidal longitudinal arms are flush with each other, and the object table is installed on the four rubber sleeves and slidably fitted with the support rods, and the convex base is provided with a straight slot at the corner position inside the convex base for the front and rear sliding of the support rods in the Y-axis direction.

[0014] Preferably, the check box and the object table are supported by a composite material of polycarbonate and acrylonitrile-butadiene-styrene copolymer, and the right-angle frame, the mountain-shaped lower slide plate and the matrix support structure are made of acrylic material.

[0015] Preferably, two wheel seats are fixed on the left and right side walls of the mountain-shaped lower slide plate, and a pulley is rotatably installed in the interior of each of the two wheel seats.

[0016] Preferably, the Z-axis double belt wheel lifting traction module comprises two parallel transmission shafts rotatably installed between the two trapezoidal longitudinal arms, and two symmetrical long right-angle beams fixed at the front and rear sides of the top end of the middle convex plate, and the Z-axis double belt wheel lifting traction module further comprises a belt wheel lifting structure installed between the transmission shafts and the long right-angle beams, and the belt wheel lifting structure is used to drive the object table and the rubber sleeve to lift in the extension direction of the support rod, and the front and rear sides of the interior of the object table are provided with rectangular hollow parts for the action of the belt wheel lifting structure, and the sliding rotary drive unit comprises a meandering frame fixed on one side of the outer wall of one of the trapezoidal longitudinal arms, a worm gear and worm reduction motor two installed on one side of the outer wall of the meandering frame, and a belt transmission structure installed on the output shaft of the worm gear and worm reduction motor two for driving the two transmission shafts to rotate.

[0017] Preferably, the Y-axis double sprocket feeding module comprises front shaft seats fixed on the inner wall of the check box, rear shaft seats, and a driven sprocket rotatably mounted on the outer wall of the rear shaft seat, a main shaft is rotatably mounted between the two front shaft seats in the same X-axis direction, both ends of the surface of the main shaft are fixed with driving sprockets, and a chain is mounted between the driving sprocket and the driven sprocket, the Y-axis double sprocket feeding module further comprises a worm gear reduction motor one mounted on the outer wall of one of the front shaft seats, and the output end of the worm gear reduction motor one is fixedly connected with one end of the main shaft through a shaft coupling, and the bottom end of the mountain-shaped slide plate is fixedly connected with one end of the chain.

[0018] The application also provides a check method for the performance of an electromagnetic field composite energy-taking passive sensor, which is performed by using the device described above, and comprises the following steps:

[0019] S101: placing the energy-taking passive sensor to be checked in performance on the object table, adjusting the position, adjusting the current of the Helmholtz coil through the PLC controller to set the required magnetic field strength, setting the voltage of the high-voltage electrode plate, monitoring and adjusting through the PLC controller to obtain a uniform electric field, selecting different frequencies and amplitudes of the current input into the Helmholtz coil, and adjusting the voltage of the two high-voltage electrode plates accordingly to simulate the on-site high-voltage environment;

[0020] S102: after the simulation of the excitation environment in the check box is completed, the staff starts the worm gear reduction motor one and the sliding rotary drive unit to work, the positions of the mountain-shaped slide plate, the right-angle rack, the Z-axis double belt wheel lifting traction module, the sliding rotary drive unit and the matrix support structure in the Y-axis direction are controlled by the worm gear reduction motor one and the Y-axis double sprocket feeding module, and the height of the matrix support structure, the object table and the electromagnetic field composite energy-taking passive sensor in the Z-axis direction is driven by the sliding rotary drive unit and the Z-axis double belt wheel lifting traction module, so as to position the electromagnetic field composite energy-taking passive sensor to be checked to the center position of the electromagnetic composite field or move to different positions of the electromagnetic composite field;

[0021] S103: providing an excitation environment for the electromagnetic field composite energy-taking sensor through a period of electromagnetic field excitation, calculating the total power consumption P out of the current time, stopping the excitation output, observing the time during which the measured composite energy-taking sensor can continuously work, so as to calculate the total power consumption P in of the sensor from starting to stopping, and thus calculating the power = P in / P out ;

[0022] S104: The control PLC controller is used for controlling the Helmholtz coil and the high-voltage electrode plate, so that the calibration box can be quickly switched under different electric field and magnetic field conditions, and response data of the energy-harvesting passive sensor under multiple electromagnetic composite environments are obtained.

[0023] Compared with the prior art, the device and method for calibrating the performance of the electromagnetic field composite energy-harvesting passive sensor have the following beneficial effects: the Helmholtz coil can generate a uniform magnetic field, the high-voltage electrode plate generates a uniform electric field, the magnetic induction lines and the electric field lines are perpendicular to each other, the on-site high-voltage environment is simulated, the fundamental wave and the harmonic wave can be excited simultaneously or independently by setting the magnetic field and the electric field as a vertical intersection double-channel excitation structure, the electromagnetic composite field with different waveforms and different phase angles is generated, the composite energy-harvesting sensor is provided with an excitation environment through a period of electromagnetic field excitation, and thus the performance of the sensor under multiple scenarios is simulated, and the response of the sensor to different frequency and waveform excitations is calibrated.

[0024] By being equipped with a Y-axis double-chain wheel feeding module, a Z-axis double-belt wheel lifting traction module, and a slip-type rotary drive unit, the energy-harvesting sensor can be accurately positioned at the center position of the electromagnetic composite field. The accurate positioning not only ensures that the sensor is in the optimal excitation area and maximizes energy capture, but also effectively avoids test errors caused by position deviation. Adjusting different Z-axis heights and Y-axis positions enables simulation of different working environments and investigation of the performance changes of the sensor under multiple spatial positions and conditions. The flexible adjustment function enables the staff to comprehensively test under multiple variables, thereby better calibrating the adaptability and stability of the energy-harvesting sensor. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a front view structural schematic diagram of the present application;

[0026] Figure 2 It is a front view structural schematic diagram of the present application; Figure One ;

[0027] Figure 3 It is a front view structural schematic diagram of the present application; Figure Two ;

[0028] Figure 4 It is a front view structural schematic diagram of the present application; Figure Three ;

[0029] Figure 5 It is a front view structural schematic diagram of the present application; Figure Four ;

[0030] Figure 6 It is a front view structural schematic diagram of the present application;

[0031] Figure 7 Figure 8 is a perspective view of the right-angle rack three-dimensional structure of the second embodiment of the present application;

[0032] Figure 8 Figure 9 is a perspective view of the double-axis guiding structure of the second embodiment of the present application;

[0033] Figure 9 Figure 10 is a perspective view of the Z-axis double-belt wheel lifting traction module of the third embodiment of the present application; Figure One

[0034] Figure 10 Figure 11 is a perspective view of the Z-axis double-belt wheel lifting traction module of the third embodiment of the present application; Figure Two

[0035] Figure 11 Figure 12 is a perspective view of the object table of the third embodiment of the present application;

[0036] Figure 12 Figure 13 is a perspective view of the Y-axis double-chain wheel feeding module of the fourth embodiment of the present application.

[0037] In the figure: 1, calibration box; 2, support seat; 3, convex base; 301, straight slot; 4, Helmholtz coil; 5, W-shaped lower slide plate; 501, middle convex plate; 502, side convex plate; 503, wheel seat; 504, pulley; 6, Y-axis double-chain wheel feeding module; 601, front shaft seat; 602, main shaft; 603, driving chain wheel; 604, chain; 605, rear shaft seat; 606, driven chain wheel; 7, right-angle rack; 701, lower grid frame; 702, vertical plate; 703, trapezoidal longitudinal arm; 8, matrix type support structure; 801, support rod; 802, rubber sleeve; 9, object table; 901, rectangular hollow part; 10, Z-axis double-belt wheel lifting traction module; 1001, transmission shaft; 1002, long right-angle beam; 1003, belt wheel lifting structure; 11, sliding rotary driving unit; 1101, meander frame; 1102, worm gear reduction motor two; 1103, belt transmission structure; 12, high-voltage electrode plate; 13, PLC controller; 14, worm gear reduction motor one; 15, double-axis guiding structure; 1501, dovetail guide rail; 1502, lower end seat; 1503, roller. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0039] Embodiment one, by Figures 1 to 5 ​​The present application comprises a calibration box 1, the inside of the calibration box 1 is provided with a double-channel excitation source for outputting magnetic field excitation and electric field excitation, the double-channel excitation source comprises high-voltage electrode plates 12 installed on the left and right inner walls of the calibration box 1, two symmetrical holders 2 fixed at the bottom of the calibration box 1, a convex base 3 fixed at the top of the two holders 2, and a Helmholtz coil 4 installed at the top of the convex base 3, the Helmholtz coil 4 and the high-voltage electrode plates 12 are vertically placed, the generated magnetic induction lines and electric field lines are perpendicular to each other, the size of the high-voltage electrode plates 12 is 80cm*80cm*0.2cm, and the distance between the two high-voltage electrode plates 12 is 85cm to 120cm;

[0040] The Helmholtz coil 4 is composed of two groups of identical current coils, which are placed on a straight line to form a uniform magnetic field, and the strength of the magnetic field can be accurately controlled by adjusting the current flowing through the coils. The high-voltage electrode plates 12 are located on both sides of the Helmholtz coil 4 and are in a vertical relationship with the Helmholtz coil 4 to generate a stable electric field. The strength and distribution of the electric field can be controlled by adjusting the voltage between the two high-voltage electrode plates 12.

[0041] The N-shaped lower slide plate 5 is slidingly installed on the lower surface of the convex base 3, the back of the N-shaped lower slide plate 5 is fixed with an upward extending right-angle rack 7, the left and right inner walls of the calibration box 1 are installed with a Y-axis double-chain wheel feeding module 6 for driving the N-shaped lower slide plate 5 to move in the Y-axis direction, the top end of the N-shaped lower slide plate 5 is installed with a matrix type support structure 8 penetrating out of the outside of the convex base 3, and the matrix type support structure 8 is slidingly installed with a carrier 9 for supporting the electromagnetic field composite energy harvesting passive sensor, a Z-axis double-belt wheel lifting traction module 10 is arranged between the right-angle rack 7 and the N-shaped lower slide plate 5 for driving the carrier 9 to slide in the Z-axis direction, and a sliding rotary drive unit 11 is installed on one side of the outer wall of the calibration box 1 for driving the Z-axis double-belt wheel lifting traction module 10 to work.

[0042] The PLC controller 13 is installed on one side of the surface of the calibration box 1, and the output end of the PLC controller 13 is electrically connected with the input ends of the Helmholtz coil 4, the Y-axis double-chain wheel feeding module 6, the matrix type support structure 8, the sliding rotary drive unit 11, and the high-voltage electrode plates 12.

[0043] The Helmholtz coil 4 can output the fundamental wave alone or the harmonic wave alone, or can output the fundamental wave superimposed with the harmonic wave, the fundamental wave and the harmonic wave can be adjusted to different phases respectively, the phase angle can be adjusted between 0-90 degrees, and the harmonic ratio can be adjusted between 0-10% randomly; the high-voltage electrode plate 12 can output the fundamental wave alone or the harmonic wave alone, or can output the fundamental wave superimposed with the harmonic wave, the fundamental wave and the harmonic wave can be adjusted to different phases respectively, the phase angle can be adjusted between 0-90 degrees, and the harmonic ratio can be adjusted between 0-10% randomly; the magnetic field and the electric field can be output simultaneously or individually, wherein the phase adjustment is based on the voltage, the current phase is adjusted, and then the voltage and the current phase difference are changed, so the phase can only be adjusted when the voltage and the current are output simultaneously.

[0044] The embodiment also provides a method for verifying the performance of an electromagnetic field composite energy-taking passive sensor, which is performed by using the device described above, and the method comprises the following steps:

[0045] S101: placing the energy-taking passive sensor to be verified in the position on the object table 9, adjusting the position, adjusting the current of the Helmholtz coil 4 by the PLC controller 13 to set the required magnetic field strength, setting the voltage of the high-voltage electrode plate 12, monitoring and adjusting by the PLC controller 13 to obtain a uniform electric field, selecting a current with different frequencies and amplitudes to input into the Helmholtz coil 4, and adjusting the voltage of the two high-voltage electrode plates 12 accordingly to simulate the high-voltage environment on site;

[0046] S102: after the simulation of the excitation environment in the box 1 to be verified is completed, the staff starts the worm gear reduction motor one 14 and the sliding rotary drive unit 11 to work, the worm gear reduction motor one 14 and the Y-axis double chain wheel feeding module 6 control the positions of the mountain-shaped slide plate 5, the right-angle rack 7, the Z-axis double belt wheel lifting traction module 10, the sliding rotary drive unit 11 and the matrix support structure 8 and the object table 9 in the Y-axis direction, and the sliding rotary drive unit 11 and the Z-axis double belt wheel lifting traction module 10 drive the matrix support structure 8, the object table 9 and the electromagnetic field composite energy-taking passive sensor in the Z-axis direction, so as to position the electromagnetic field composite energy-taking passive sensor to be verified to the center position of the electromagnetic composite field or move to different positions of the electromagnetic composite field;

[0047] S103: providing an excitation environment for the electromagnetic field composite energy-taking sensor by the electromagnetic field excitation for a period of time, calculating the total power consumption P out of the sensor from starting to stopping, stopping the excitation output, observing the time during which the composite energy-taking sensor can work continuously, and thus calculating the total power consumption P in of the sensor from starting to stopping, and thus calculating the power = Pin / P out ;

[0048] S104: The control PLC controller 13 is used to control the Helmholtz coil 4 and the high-voltage electrode plate 12, so that the calibration box 1 can quickly switch under different electric field and magnetic field conditions, and the response data of the energy-harvesting passive sensor under various electromagnetic composite environments can be obtained.

[0049] In the second embodiment, on the basis of the first embodiment, Figure 6 、 Figure 7 and Figure 8 The two sides of the surface of the mountain-shaped lower slide plate 5 are integrally formed with side protrusions 502, and the surface of the mountain-shaped lower slide plate 5 between the two side protrusions 502 is fixed with a middle protrusion 501, which is used to support the lower half of the Z-axis double-belt wheel lifting traction module 10, so that the Z-axis double-belt wheel lifting traction module 10 can move stably;

[0050] Two wheel seats 503 are fixed on the left and right side walls of the mountain-shaped lower slide plate 5, and a pulley 504 is rotatably installed in each of the two wheel seats 503. A double-axis guide structure 15 is arranged between the upper surface of the side protrusion 502 and the lower surface of the convex base 3 to maintain the sliding connection state;

[0051] The double-axis guide structure 15 includes two lower end seats 1502 fixed on the lower surface of the convex base 3, a dovetail guide rail 1501 fixed on the upper surface of the middle protrusion 501, and a roller 1503 rotatably installed on the left and right sides of the bottom end of the lower end seat 1502. The dovetail guide rail 1501 and the roller 1503 are in sliding fit. When the positions of the mountain-shaped lower slide plate 5, the right-angle rack 7, the Z-axis double-belt wheel lifting traction module 10, the sliding rotary drive unit 11, the matrix support structure 8, and the object table 9 in the Y-axis direction are controlled by the Y-axis double-chain wheel feeding module 6, the Y-axis double-chain wheel feeding module 6 drives the mountain-shaped lower slide plate 5 and the right-angle rack 7 to slide in the Y-axis direction. During this process, the side protrusions 502 on the left and right sides of the mountain-shaped lower slide plate 5 slide fit with the lower surface of the convex base 3 through the double-axis guide structure 15. At this time, the lower end seat 1502 is in a fixed state, while the side protrusion 502, the mountain-shaped lower slide plate 5, and the middle protrusion 501 move forward, and the roller 1503 assists the sliding of the dovetail guide rail 1501. In this way, the electromagnetic field composite energy-harvesting passive sensor is more stable and smooth when adjusting the position in the Y-axis direction;

[0052] The right-angle rack 7 includes a lower grid frame 701 fixed on the back of the mountain-shaped lower slide plate 5, a vertical plate 702 fixed on the top end of the lower grid frame 701, and two trapezoidal vertical arms 703 fixed on the surface of the vertical plate 702. The Z-axis double-belt wheel lifting traction module 10 is arranged between the two trapezoidal vertical arms 703.

[0053] The lower grid frame 701, the vertical plate 702 are stacked in sequence and fixedly extended upwards, and the two trapezoidal longitudinal arms 703 extend in the Y-axis direction, forming a solid frame which constitutes a strong structural foundation support, can effectively disperse the load from the upper half of the Z-axis double-belt wheel lifting traction module 10, and ensure that the entire system remains stable during sensor lifting operation, reducing measurement errors caused by vibration or tilting;

[0054] The matrix support structure 8 includes support rods 801 fixed to the front and rear positions of the top ends of the two convex plates 501, and rubber sleeves 802 slidably sleeved on one end of the surface of the support rods 801. The top end plane of the support rod 801 is flush with the upper surface of the trapezoidal longitudinal arm 703. The object table 9 is installed on the four rubber sleeves 802 and is in sliding fit with the support rod 801. When the Z-axis double-belt wheel lifting traction module 10 pulls the object table 9 up and down, the object table 9 is in sliding fit with the support rod 801 through the rubber sleeve 802. The rubber sleeve 802 can provide good friction, so that the object table 9 moves more stably and reduces errors during sliding. The flexibility of the rubber material absorbs part of the vibration, which helps to reduce the influence of external vibration on the object table 9.

[0055] The convex base 3 is provided with a straight slot 301 at the corner position inside the convex base 3 for the support rod 801 to slide forward and backward in the Y-axis direction. When the inverted V-shaped lower slide plate 5 and the right-angle rack 7 are adjusted to slide in the Y-axis direction, the straight slot 301 provides a sliding area for the sliding of the support rod 801, ensuring that the matrix support structure 8, the right-angle rack 7, the Z-axis double-belt wheel lifting traction module 10 and other components can normally slide when the holder 2, the Helmholtz coil 4 and the convex base 3 are in a fixed state.

[0056] The calibration box 1 and the object table 9 are supported by a composite material of polycarbonate and acrylonitrile-butadiene-styrene copolymer. The right-angle rack 7, the inverted V-shaped lower slide plate 5 and the matrix support structure 8 are made of acrylic material. The non-metallic material does not affect the electromagnetic composite field inside the calibration box 1.

[0057] In Example Three, based on Example Two, Figure 9 、 Figure 10 and Figure 11The Z-axis double-belt-wheel lifting traction module 10 comprises two parallel transmission shafts 1001 rotatably installed between the two trapezoidal longitudinal arms 703, and two symmetrical long straight angle beams 1002 fixed to the top front and rear sides of the middle convex plate 501. The Z-axis double-belt-wheel lifting traction module 10 further comprises a belt-wheel lifting structure 1003 installed between the transmission shafts 1001 and the long straight angle beams 1002, which is used to drive the lifting of the object table 9 and the rubber sleeve 802 in the extension direction of the support rod 801. The front and rear sides of the object table 9 are provided with rectangular hollow parts 901 for the action of the belt-wheel lifting structure 1003. The worm and gear reduction motor two 1102 works according to the direction, speed, angle, and response time set by the PLC controller 13. Then the rotary power of the worm and gear reduction motor two 1102 is synchronously transmitted to the two transmission shafts 1001 through the belt transmission structure 1103. The belt-wheel lifting structure 1003 between the transmission shafts 1001 and the long straight angle beams 1002 drives the sliding of the object table 9 in the vertical extension direction of the support rod 801.

[0058] The design of the two belt-wheel lifting structures 1003 provides more uniform force transmission, reduces motion jitter caused by uneven force, and realizes smooth lifting action. The self-locking property of the worm and gear reduction motor two 1102 ensures that the transmission structure will not accidentally slide when power is off or the machine is stopped, ensuring the stability of the position of the object table 9. The rectangular hollow parts 901 provide a space for the action of the belt-wheel lifting structure 1003. The belt in the belt-wheel lifting structure 1003 is fixedly connected to the inner wall of one side of the rectangular hollow part 901, so as to drive the lifting of the object table 9 by the belt.

[0059] The sliding rotary drive unit 11 comprises a meandering frame 1101 fixed to the outer wall of one side of one of the trapezoidal longitudinal arms 703, a worm and gear reduction motor two 1102 installed on the outer wall of one side of the meandering frame 1101, and a belt transmission structure 1103 installed on the output shaft of the worm and gear reduction motor two 1102 for driving the rotation of the two transmission shafts 1001. The meandering frame 1101 is in sliding fit with the outer wall of one side of the calibration box 1, and a rectangular cavity is reserved on the outer wall of the calibration box 1 for the sliding of the meandering frame 1101, so that the Y-axis double-chain-wheel feeding module 6 can still work normally when driving the Z-axis double-belt-wheel lifting traction module 10 and the sliding rotary drive unit 11.

[0060] In the fourth embodiment, based on the third embodiment, Figure 12The Y-axis double sprocket feeding module 6 comprises front shaft seats 601 fixed on the inner wall of one side of the calibration box 1, a rear shaft seat 605, and a driven sprocket 606 rotatably installed on the outer wall of one side of the rear shaft seat 605. Two front shaft seats 601 in the same X-axis direction are rotatably installed with a main shaft 602, both ends of the surface of the main shaft 602 are fixed with a driving sprocket 603, and the driving sprocket 603 and the driven sprocket 606 are installed with a chain 604. The Y-axis double sprocket feeding module 6 further comprises a worm gear reduction motor I 14 installed on the outer wall of one side of one of the front shaft seats 601. The output end of the worm gear reduction motor I 14 is fixedly connected with one end of the main shaft 602 through a shaft coupling. The bottom end of the mountain-shaped lower slide plate 5 is fixedly connected with one end of the chain 604.

[0061] The rotary power of the worm gear reduction motor I 14 is transmitted to the two driving sprockets 603 through the main shaft 602. At this time, the chain 604 between the driving sprocket 603 and the driven sprocket 606 can rotate and drive the mountain-shaped lower slide plate 5 to move in the Y-axis direction, so as to realize the purpose of adjusting the Y-axis position of the object table 9 and the sensor. In this process, the worm gear reduction motor I 14 converts high speed into low speed and high torque output, which makes the position adjustment of the Y-axis more accurate, and its self-locking characteristic can prevent the mountain-shaped lower slide plate 5, the right-angle rack 7 and other components from accidental displacement under the action of external force or power failure of the worm gear reduction motor I 14, so as to realize accurate and stable adjustment of each component.

[0062] In use, the embodiment of the present application first places the energy-taking passive sensor to be checked on the worktable 9, adjusts its position, adjusts the current of the Helmholtz coil 4 through the PLC controller 13 to set the required magnetic field strength, in the process, the PLC controller 13 realizes accurate current adjustment through programmed control, ensures that the generated magnetic field is uniform and stable, and sets the voltage of the high-voltage electrode plate 12, which is monitored and adjusted through the PLC controller 13 to obtain a uniform electric field. The strength of the two fields can be fed back to the operator in real time through the digital screen on the PLC controller 13 to ensure that it meets the experimental requirements. In the process, different frequencies and amplitudes of current are input into the Helmholtz coil 4, and the voltage of the two high-voltage electrode plates 12 is adjusted accordingly to simulate the on-site high-voltage environment. These settings can simulate the actual use of the sensor in various electromagnetic environments. In the process, different magnetic field strengths or electric field strengths can be generated, or magnetic field excitation and electric field excitation can be output at the same time to achieve the effect of superimposing the magnetic field on the electric field. The two excitation modes of fundamental wave and harmonic wave can be used to realize single or simultaneous excitation, adjust different phase angles and harmonic proportions, and after the simulation of the excitation environment in the to-be-checked box 1 is completed, the worker starts the worm and worm gear reduction motor one 14 and the sliding rotary drive unit 11 through the PLC controller 13. The worm and worm gear reduction motor one 14 and the Y-axis double chain wheel feeding module 6 control the position of the inverted V-shaped sliding plate 5, the right-angle rack 7, the Z-axis double belt wheel lifting traction module 10, the sliding rotary drive unit 11 and the matrix support structure 8, the worktable 9 in the Y-axis direction, and the height of the matrix support structure 8, the worktable 9 and the energy-taking passive sensor in the Z-axis direction driven by the sliding rotary drive unit 11 and the Z-axis double belt wheel lifting traction module 10. In this way, the energy-taking passive sensor to be checked is positioned at the center position of the electromagnetic composite field, or moved to different positions of the electromagnetic composite field, reducing the test error caused by position deviation. Through a period of electromagnetic field excitation, the energy-taking passive sensor is provided with an excitation environment, and then the total power consumption at the current time is calculated. Through the programmed control of the PLC controller 13, the operator can quickly switch under different electric field and magnetic field conditions to obtain the response data of the electromagnetic field composite energy-taking passive sensor under various electromagnetic composite environments.

[0063] It should be noted that in this document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0064] While embodiments of the application have been shown and described, it is to be understood that the application is not limited to the details of the embodiments described, since numerous changes, modifications, substitutions and variations can be made thereto without departing from the spirit and scope of the application as defined by the appended claims and their equivalents.

Claims

1. A device for electromagnetic field compound powering passive sensor performance verification, characterized in that, Include: The inside of the check box (1) is provided with a double-channel excitation source for outputting magnetic field excitation, electric field excitation, the double-channel excitation source includes high-voltage electrode plate (12) installed on the left and right inner walls of the check box (1), two symmetrical holders (2) fixed on the bottom of the check box (1), the convex base (3) fixed on the top of the two holders (2), and the Helmholtz coil (4) installed on the top of the convex base (3), the Helmholtz coil (4), the high-voltage electrode plate (12) is vertically placed, and the magnetic induction lines and the electric field lines generated are perpendicular to each other; The mountain-shaped lower slide plate (5) is slidably installed on the lower surface of the convex base (3), the back of the mountain-shaped lower slide plate (5) is fixed with an upward extending right-angle rack (7), Y-axis double-chain wheel feeding module (6) for driving the mountain-shaped lower slide plate (5) to move in Y-axis is installed on the left and right inner walls of the check box (1), the top of the mountain-shaped lower slide plate (5) is provided with a matrix support structure (8) penetrating out of the convex base (3), and the matrix support structure (8) is slidably installed with a stage (9) for supporting the electromagnetic field composite energy harvesting passive sensor, a Z-axis double-belt wheel lifting traction module (10) for driving the stage (9) to slide in Z-axis is arranged between the right-angle rack (7) and the mountain-shaped lower slide plate (5), a sliding rotary drive unit (11) for driving the Z-axis double-belt wheel lifting traction module (10) to work is installed on one side of the outer wall of the check box (1); The PLC controller (13) is installed on one side of the surface of the check box (1), and the output end of the PLC controller (13) is electrically connected with the input end of the Helmholtz coil (4), the Y-axis double-chain wheel feeding module (6), the matrix support structure (8), the sliding rotary drive unit (11) and the high-voltage electrode plate (12).

2. The device for performance verification of an electromagnetic field compound-powered passive sensor according to claim 1, characterized in that: The two sides of the surface of the mountain-shaped lower slide plate (5) are integrally formed with side protruding plates (502), the surface of the mountain-shaped lower slide plate (5) between the two side protruding plates (502) is fixed with a middle protruding plate (501), and a double-axis guiding structure (15) for maintaining the sliding connection state is arranged between the upper surface of the side protruding plate (502) and the lower surface of the convex base (3).

3. The device for performance verification of an electromagnetic field compound-powered passive sensor according to claim 2, characterized in that: The double-axis guiding structure (15) includes two lower end seats (1502) fixed on the lower surface of the convex base (3), a dovetail guide rail (1501) fixed on the upper surface of the middle protruding plate (501), and rollers (1503) rotatably installed on the left and right sides of the bottom end of the lower end seat (1502), and the dovetail guide rail (1501) and the roller (1503) are in sliding fit.

4. The device for performance verification of an electromagnetic field compound-powered passive sensor according to claim 2, characterized in that: The right-angle rack (7) includes a lower grid frame (701) fixed on the back of the mountain-shaped lower slide plate (5), a vertical plate (702) fixed on the top of the lower grid frame (701), and trapezoidal longitudinal arms (703) fixed on the surface of the vertical plate (702), and the Z-axis double-belt wheel lifting traction module (10) is arranged between the two trapezoidal longitudinal arms (703).

5. The device for performance verification of an electromagnetic field compound-powered passive sensor according to claim 4, characterized in that: The matrix support structure (8) comprises support rods (801) fixed at the front and rear positions of the top ends of two convex plates (501), rubber sleeves (802) slidably sleeved on the surfaces of the support rods (801), the top end planes of the support rods (801) are flush with the upper surfaces of the trapezoidal longitudinal arms (703), the object table (9) is installed on the four rubber sleeves (802) and is in sliding fit with the support rods (801), and the convex base (3) is provided with straight grooves (301) at the corner positions in the interior of the convex base (3) and used for allowing the support rods (801) to slide in the Y-axis direction.

6. The device for performance verification of an electromagnetic field compound powered passive sensor according to claim 5, wherein: The check box (1) and the object table (9) are supported by a composite material of polycarbonate and acrylonitrile-butadiene-styrene, and the right-angle rack (7), the mountain-shaped lower slide plate (5) and the matrix support structure (8) are made of acrylic material.

7. The device for performance verification of an electromagnetic field compound powered passive sensor of claim 2, wherein: The left and right side walls of the mountain-shaped lower slide plate (5) are fixed with two wheel seats (503), and the interiors of the two wheel seats (503) are rotatably installed with pulleys (504).

8. The device for performance verification of an electromagnetic field compound powered passive sensor of claim 5, wherein: The Z-axis double-belt-pulley lifting traction module (10) comprises two parallel transmission shafts (1001) rotatably installed between the two trapezoidal longitudinal arms (703), two symmetrical long right-angle beams (1002) fixed at the top ends of the convex plates (501), a belt-pulley lifting structure (1003) installed between the transmission shaft (1001) and the long right-angle beam (1002), and the belt-pulley lifting structure (1003) is used for driving the object table (9) and the rubber sleeve (802) to lift in the extension direction of the support rod (801), the interiors of the object table (9) are provided with rectangular hollow portions (901) at the front and rear positions and used for the action of the belt-pulley lifting structure (1003), and the sliding rotary driving unit (11) comprises a meandering frame (1101) fixed to one side of the outer wall of one of the trapezoidal longitudinal arms (703), a worm gear reduction motor two (1102) installed on one side of the outer wall of the meandering frame (1101), and a belt transmission structure (1103) installed on the output shaft of the worm gear reduction motor two (1102) and used for driving the two transmission shafts (1001) to rotate.

9. The device for performance verification of an electromagnetic field compound-powered passive sensor according to claim 8, characterized in that: The Y-axis double sprocket feeding module (6) comprises a front shaft seat (601) fixed on the inner wall of one side of the verification box (1), a rear shaft seat (605), and a driven sprocket (606) rotatably mounted on the outer wall of one side of the rear shaft seat (605), two front shaft seats (601) in the same X-axis direction are rotatably mounted with a main shaft (602), both ends of the surface of the main shaft (602) are fixed with a driving sprocket (603), and a chain (604) is mounted between the driving sprocket (603) and the driven sprocket (606), the Y-axis double sprocket feeding module (6) further comprises a worm gear reduction motor I (14) mounted on the outer wall of one side of one of the front shaft seats (601), and the output end of the worm gear reduction motor I (14) is fixedly connected with one end of the main shaft (602) through a shaft coupling, and the bottom end of the inverted V-shaped lower slide plate (5) is fixedly connected with one end of the chain (604).

10. A method for performance verification of an electromagnetic field compound powered passive sensor, using the device of any one of claims 1-9, characterized in that: The method comprises the following steps: S101: Place the energy-taking passive sensor to be verified in performance on the object table (9), adjust its position, adjust the current of the Helmholtz coil (4) through the PLC controller (13) to set the required magnetic field strength, set the voltage of the high-voltage electrode plate (12) at the same time, and monitor and adjust the voltage through the PLC controller (13) to obtain a uniform electric field, select different frequencies and amplitudes of current input into the Helmholtz coil (4), and adjust the voltage of the two high-voltage electrode plates (12) accordingly to simulate the on-site high-voltage environment; S102: After the excitation environment simulation in the verification box (1) is completed, the staff starts the worm gear reduction motor I (14) and the sliding rotary drive unit (11) through the PLC controller (13), controls the positions of the inverted V-shaped lower slide plate (5), the right-angle rack (7), the Z-axis double belt wheel lifting traction module (10), the sliding rotary drive unit (11), and the matrix support structure (8) and the object table (9) in the Y-axis direction through the worm gear reduction motor I (14) and the Y-axis double sprocket feeding module (6), drives the heights of the matrix support structure (8), the object table (9), and the electromagnetic field composite energy-taking passive sensor in the Z-axis direction through the sliding rotary drive unit (11) and the Z-axis double belt wheel lifting traction module (10), so as to position the electromagnetic field composite energy-taking passive sensor to be verified to the center position of the electromagnetic composite field or move to different positions of the electromagnetic composite field; S103: Through a period of electromagnetic field excitation, provide excitation environment for the electromagnetic field composite energy harvesting sensor, calculate the total power consumption P in the current time out , stop excitation output, observe the time that the measured composite energy harvesting sensor can work continuously, so as to calculate the total power consumption P of the sensor from start to stop in , so as to calculate power=P in / P out ; S104: Control the Helmholtz coil (4) and the high-voltage electrode plate (12) through the control PLC controller (13), so that the verification box (1) can quickly switch under different electric field and magnetic field conditions, and obtain the response data of the energy-taking passive sensor under various electromagnetic composite environments.

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