414results about "Instrument screening arrangements" patented technology

The invention discloses an MEMS and TMR fused overhead line lightweight monitoring device, and the device comprises an annular shielding cover which sleeves a to-be-detected overhead conductor and is coaxial with the to-be-detected overhead conductor, and the side wall of the annular shielding cover is provided with a through hole; the sensing unit comprises at least two MEMS electric field sensors and at least two TMR magnetic field sensors and is used for detecting an electric field and a magnetic field generated by the overhead conductor to be detected; the analysis processing unit is used for receiving, processing and transmitting the signal generated by the sensing unit; and the power supply unit is arranged in the annular shielding cover and is electrically connected with the sensing unit and the analysis processing unit. The beneficial effect of the invention is that the coupling crosstalk phenomenon generated by an external electromagnetic field can be effectively suppressed. Moreover, the monitoring device is small in size, is convenient to install and deploy in a complex line environment, provides a stable hardware basis for precise inversion of voltage and current through structural cooperation, and provides reliable support for intelligent monitoring of an overhead line.

The invention relates to a vertical magnetic field interference resistant inductor, an electric power meter and a manufacturing method thereof, the vertical magnetic field interference resistant inductor comprises a Rogowski coil and an annular vertical magnetic field counteracting coil located in the Rogowski coil, the Rogowski coil comprises an even number of self-adhesion hollow coils which are connected in series end to end, the wire diameter, the number of turns, the number of layers, the inner diameter and the outer diameter of each hollow coil are consistent, and the vertical magnetic field counteracting coil is located in the Rogowski coil. The Rogowski coils are arranged in the same horizontal plane and are symmetrically distributed on the same horizontal plane with a circle as the center, hole parts of the hollow coils jointly form an annular channel, the inning area of the vertical magnetic field offset coil is equal to the inning area defined by the Rogowski coils, and a pre-positioning support is arranged in the annular channel in a penetrating and matched mode. The vertical magnetic field counteracting coil is located at the center of the annular channel, and the Rogowski coil and the vertical magnetic field counteracting coil are provided with output ends. Therefore, the technical problem that small current detection is easily interfered by an external power frequency electromagnetic field is solved.

The utility model relates to a control device for a microwave anechoic chamber test system. Comprising a shielding box which is a sealed cavity provided with a cover plate, and the shielding box is provided with a power supply socket, a data socket and an optical fiber coupler; a control circuit board, an AC-DC power supply module, a data optical fiber transceiver and other modules are installed in the shielding box. A plurality of motor control units, a power supply interface and a communication interface are integrated on the control circuit board, and a first output end of the AC-DC power supply module is connected with the control board and is used for supplying power to the control board; one end of the data optical fiber transceiver is electrically connected with the optical fiber coupler, and the other end is electrically connected with the communication interface for converting the signal into an optical signal and outputting the optical signal. The control circuit board is placed in the shielding box, so that the size of the rotary table or antenna tower equipment is reduced, and the electromagnetic interference risk of a motor and a darkroom environment is reduced; the control circuit board integrates the servo motor control unit and the stepping motor control unit for modular design, serves as an independent unit of the darkroom test system, and is high in universality.

The invention belongs to the technical field of gap measurement, and particularly relates to a high-temperature-resistant transparent shell type eddy current tip gap measuring device and method, and the device comprises a sensor probe module, a signal conditioning module, a data collection module and a data processing module. The sensor probe module is mounted on the outer wall of the casing; the sensor probe module comprises a permanent magnet excitation source, a soft magnet magnetic core and a receiving coil; the signal conditioning module is electrically connected with the receiving coil and is used for amplifying, filtering and integrating the weak induction signal; the data acquisition module is electrically connected with the signal conditioning module and converts an analog signal into a digital signal; the data processing module is used for processing the acquired digital signals and extracting blade tip clearance information.

Systems and Methods for capacitance testing of a unit under test with parasitic capacitance directed to a guard rail. The system includes test points, wherein the plurality of test points are divided into at least two groups; a stimulus source; a first group guard relay electrically connected to each of the test points in a first; a second group guard relay electrically connected to each of the test points in a second; a guard rail coupled to the first group guard relay and the second group guard relay; a first group return relay electrically connected to each of the test points in a first group; a second group return relay electrically connected to each of the test points in a second group; a current measurement rail coupled to the first group return relay and the second group return relay; a current meter coupled to the measurement rail; and a controller.

The utility model relates to the field of electromagnetic field detection, in particular to an electromagnetic field detection device of an internet of things sensor, which comprises a shell, a circuit board, a shielding cover, a detection probe, a signal processing module and a signal transmission module. The detection probe can collect electromagnetic field signals in the environment where the detection probe is located and send the collected signals to the signal processing module, and the signal processing module sends the processed signals to the signal transmission module and sends the processed signals to the cloud server. According to the utility model, the internal circuit board is isolated from the external electromagnetic field environment through the shielding cover, so that the influence of the electromagnetic field in the external environment on the internal circuit is reduced.

The invention relates to the technical field of charge and discharge detection, and discloses a multichannel EIS charge and discharge in-situ test system and method, and the system comprises a DC charge and discharge module which is used for carrying out the constant-current, constant-voltage or cyclic charge and discharge test of a battery; the alternating current impedance test module is connected in parallel with the direct current charging and discharging module and is used for applying an alternating current disturbance signal to the battery and collecting impedance response in the charging and discharging process; and the unified clock module is used for providing a synchronous triggering reference signal for the direct current charging and discharging module and the alternating current impedance test module. The direct current charging and discharging module and the alternating current impedance test module are designed to be of a parallel connection normally-connected structure, no relay switching is needed, continuous and uninterrupted online EIS test in the charging and discharging process is achieved, contact resistance drift and transient errors caused by physical circuit switching in a traditional scheme are effectively avoided, and the reliability of the EIS test is improved. And the stability and repeatability of the test are obviously improved.

The invention discloses a partial discharge detection method and device based on discharge spectrum chromaticity, and belongs to the technical field of power systems, and the method comprises the steps: collecting a plurality of discharge optical signals of switch cabinet equipment; for each discharge optical signal, carrying out chromaticity analysis on the RGB monochromatic light signal, and respectively calculating color chaos degree, spectrum color gamut deviation degree, spectrum chromaticity dynamic coupling parameters and hue purity ratio; calculating a chromaticity difference weight based on the full-band optical signal and the RGB monochromatic light signal; performing weighted integration on the color chaos degree, the spectrum color gamut deviation degree, the spectrum chromaticity dynamic coupling parameter and the hue purity ratio based on the chromaticity difference weight to obtain a chromaticity comprehensive magnitude; calculating the mean value of the comprehensive chromaticity values of the plurality of discharge optical signals; and comparing the chromaticity comprehensive magnitude mean value with the plurality of judgment chromaticity ranges, and determining a discharge type detection result of the switch cabinet equipment. According to the invention, the problem of low accuracy of partial discharge detection in the prior art can be solved.

The invention discloses a radiation-inhibiting needle point structure, a two-dimensional probe and a microwave test system, belongs to a microwave radio frequency test technology, and aims to solve the problems that radiation crosstalk is aggravated and insertion loss is abnormal in a millimeter wave to terahertz frequency band on-chip test, and a traditional three-dimensional probe is limited by process precision and is difficult to meet high-frequency test requirements. The radiation-inhibiting needle point structure comprises a ground wire and a signal wire, the ground wire is located on two sides of the signal wire to form a GSG needle point structure, and a supporting structure is arranged between the ground wire and the signal wire; a cantilever type shielding layer is arranged above the ground wire, and a G needle root hollowed-out structure is arranged at the position, close to the root of the needle tip, of the cantilever type shielding layer; each of the ground wire and the signal wire comprises a GSG needle point structure lower nickel layer and a GSG needle point structure upper copper layer, the needle point part of the ground wire is provided with a transition structure, and the thickness of the transition structure is gradually reduced from the root of the needle point to the tip of the needle point; a signal line is constrained in a quasi-TEM mode for transmission, so that high-frequency radiation leakage is effectively inhibited; and the stress of the needle tip can be optimized by adjusting structural parameters.

The invention relates to the technical field of electromagnetic measurement, and discloses a measurement unit stabilization method and system, electronic equipment and a storage medium, and the method comprises the steps: obtaining three-dimensional displacement trajectory data in real time, and building a motion error compensation model containing a mechanical vibration direction vector and a phase offset; on the basis of asymmetric magnetic pole distribution, combined with phase difference calculation of a magnetic circuit gradient direction vector and a mechanical vibration direction vector, a closed loop current orthogonal to the mechanical vibration direction vector is generated on an interface to realize gradient isolation; based on a multi-branch common-mode suppression mechanism, an interference signal reaches a preset attenuation amplitude before a loop is closed through combination of a magnetic core impedance matching characteristic and an eddy current effect; and performing dynamic matching based on the displacement parameter and an electromagnetic interference attenuation result, adjusting a magnetic pole inclination angle in real time, and forming a closed-loop control path of magnetic field gradient compensation and mechanical vibration suppression. According to the invention, the stability and anti-interference capability of the measuring unit under severe working conditions can be improved.

The invention discloses a capacitance parameter determination method and device of an iron core sensing device for transformer partial discharge detection, electronic equipment and a storage medium, and belongs to the technical field of sensor design, and the method comprises the steps: obtaining an iron core three-dimensional model of a transformer; performing electromagnetic simulation on the iron core three-dimensional model to generate antenna characteristic parameters of the transformer iron core under each frequency in a preset frequency band; determining a target detection frequency band of the transformer core according to the antenna characteristic parameters; repeatedly executing the parameter adjustment operation of the iron core sensing device until the current test frequency band covers the target detection frequency band, and determining the capacitance parameter of the iron core sensing device; therefore, by implementing the invention, the problem that the capacitance parameters of the iron core sensing device in the prior art are not accurately determined can be solved.

The utility model discloses an electromagnetic compatibility assessment device, and belongs to the technical field of wireless communication. The equipment comprises a data processing module, a signal generator module, a low-frequency / high-frequency amplifier, a combining unit, a shielding frame and a power supply module, and accurate evaluation of the electromagnetic compatibility of the weak current equipment is realized through modular design. The signal generator module adopts a multi-band vector signal generator to generate configurable interference signals; the low-frequency amplifier and the high-frequency amplifier respectively adopt independent high-precision amplification circuits; and the combining unit couples the two paths of signals into a composite interference signal and outputs the composite interference signal. The shielding frame is made of double-layer aluminum magnesium alloy and is combined with a metal machine frame to form a composite shielding system. And the data processing module regulates and controls parameters in real time through the touch screen, analyzes response data of the tested equipment based on an FFT algorithm, and generates a visual evaluation report.

The invention discloses an electromobile electromagnetic compatibility testing device, and relates to the technical field of electromagnetic compatibility testing, the electromobile electromagnetic compatibility testing device comprises a shielding box, the upper side of the shielding box is fixedly connected with a control box, and one side of the control box is provided with a manipulator used for clamping an electromobile motor to go in and out of the shielding box; one side of the manipulator is provided with an opening and closing mechanism used for opening and closing the entrance, the lower side of the control box is slidably connected with a load simulation circuit box used for regulating and controlling a power supply and emitting high-energy pulses through a circuit, and one side of the load simulation circuit box is fixedly connected with a second handle. One side of the second handle is provided with a wiring terminal, and the wiring terminal is fixedly connected with the load simulation circuit box. A dynamic test platform capable of highly simulating a real world complex scene is created, and the tested motor is driven to move along a U-shaped track in the shielding box through a precise mechanical structure; and working conditions such as straight running, steering and backing of the vehicle can be accurately reproduced.

The utility model, which relates to the technical field of the LED, discloses a leakage protection circuit comprising a power supply circuit, a step-down circuit, an LED circuit and a detection circuit. The input end of the power supply circuit is connected to the output pin of the power supply end, the output end of the power supply circuit is connected with the input end of the step-down circuit and the input end of the LED circuit, and the power supply circuit is used for rectifying the output power supply of the power supply end so as to output the power supply to the step-down circuit and the LED circuit; the output end of the step-down circuit is connected with the detection circuit, and the step-down circuit is used for carrying out step-down processing on the power supply output by the power circuit to output reference voltage to the detection circuit; and the detection circuit is respectively connected with the output pins of the power supply end and the LED circuit, and is used for controlling the working state of the LED circuit according to the real-time voltage difference and the real-time voltage between the output pins of the power supply end and the reference voltage output by the step-down circuit. According to the utility model, the working state of the LED circuit can be controlled according to the real-time voltage difference, the real-time voltage and the reference voltage, thereby realizing anti-creeping protection.

The invention provides an alternating-current weak current high-precision detection system and method, and the system comprises a copper-nickel alloy shielding cover which is used for inhibiting space power frequency radiation interference and power system broadband noise, and a magnetic sensitive element which is used for converting the detected magnetic field change into a corresponding initial current signal, the trans-impedance amplifier is used for converting the initial current signal into a voltage signal; the adaptive noise suppression module collects a power frequency fundamental wave reference signal and a harmonic wave reference signal, generates a harmonic wave anti-phase counteracting signal, and performs anti-phase counteracting on real noise of the initial current signal; the analog-to-digital converter is used for converting the voltage signal into a discretized digital signal, and the discretized digital signal comprises a target signal and a random noise signal; and the FPGA coherent demodulation module is used for carrying out cross-correlation operation and narrow-band filtering on the target signal and the random noise signal to separate out a micro-current signal. The technical problems that in the prior art, composite noise covering is limited, the frequency fluctuation adaptability is poor, and microvolt-level signals are difficult to capture are solved.

The present invention is related to a remotely-controlled flying device intended to approach and contact a high-voltage overhead power line for operation thereon, said flying device comprising : - a mechanical structure (1) bearing a plurality of propellers (8) and an aircraft body (4) containing at least a power hub, a flight controller and radio communication means, and - an electrical shield (2, 7) encapsulating said mechanical structure (1), wherein the remotely-controlled flying device also comprises a surge protector or the like (3) designed to locally capture and guide toward the electrical shield (2) possible electric discharges in the phase of power line approaching and / or contacting and to render the electrical shield (2) equipotential with the power line.

The invention discloses a shielding device for directly carrying out an ultrahigh frequency partial discharge test and GIS equipment, and relates to the technical field of ultrahigh frequency partial discharge tests.The shielding device comprises a cover plate, and the cover plate is provided with a detection window; the insulating unit is arranged on one side of the cover plate; the sealing unit is arranged on the insulating unit; through combination of the cover plate, the insulation unit and the sealing unit, the insulation unit is exposed to the outside through the detection window, ultrahigh frequency partial discharge detection can be directly carried out without dismounting the shielding device, tedious operations such as repeated dismounting, sealant cleaning and re-gluing in traditional detection are thoroughly avoided, and the detection efficiency is improved. The detection time is shortened, and the detection efficiency is improved; the sealing surface is prevented from being physically damaged due to repeated disassembly, the sealing integrity of the GIS equipment in the whole life cycle is ensured, the SFgas leakage risk is reduced, the sealing reliability of the GIS equipment is greatly improved, and the SFgas leakage risk is effectively inhibited.

The invention discloses a new energy automobile high-voltage circuit board micro short circuit online detection method, which comprises the steps of injecting a multi-band detection signal into a to-be-detected loop in a live operation state of a high-voltage circuit board, and collecting a response current signal of the to-be-detected loop in real time through a high-precision current sensor, and extracting the phase offset of the response current signal in a specific characteristic frequency band, judging the occurrence of a micro-short circuit fault based on a dynamic comparison result of the phase offset and a preset threshold value, and isolating the electrical connection between the high-voltage main circuit and the detection system.

The invention belongs to the technical field of power distribution network high-voltage electrical equipment monitoring, and particularly relates to a ring main unit full-shielding capacitance partial pressure sensing device, a preparation method and a monitoring system. The device comprises high-voltage capacitor sampling units which are connected in series, a high-voltage side shielding structure which wraps the high-voltage capacitor sampling units and is equipotential with a high-voltage end, a low-voltage signal processing module used for processing small-voltage signals, and a low-voltage side shielding structure which is grounded and wrapped. Through the double-layer full-shielding design, an external electric field can be effectively uniformized, partial discharge is suppressed, electromagnetic interference is isolated, and the measurement stability and precision of the ring main unit in a strong electromagnetic environment are remarkably improved. The device is generally of a plug type integrated structure matched with a ring main unit interface, internal capacitors are precisely welded, and the total capacity is controlled within a specific range. And the low-voltage module can condition and analyze voltage division signals, so that collaborative sensing and uploading of multiple parameters such as voltage, frequency, harmonic waves and the like are realized, and key technical equipment is provided for intelligent monitoring of the state of the power distribution network.

The embodiment of the utility model discloses a current sensor and electronic equipment, the current sensor comprises a shell, a current conductor, a sensing chip and a shielding piece, the current conductor comprises a sensing section, and the sensing section is located in the shell; the sensing chip comprises a first side surface, a second side surface and a third side surface, the first side surface is opposite to the second side surface, the third side surface is connected between the first side surface and the second side surface, and the first side surface is arranged close to the sensing section; and the shielding piece is arranged in the shell, the shielding piece covers the sensing chip and at least part of the sensing section, and the projection of the shielding piece on the sensing chip at least covers the first side surface, the second side surface and the third side surface. Therefore, it can be ensured that a semi-closed magnetic field is formed around the induction chip, it is ensured that the induction chip can only receive a magnetic field signal generated when the current to be measured flows through the induction section, and the stability and reliability of measurement are further improved.

The utility model belongs to the field of automobile radio testing, and discloses a bottom surface workbench of a full-radio-wave radio frequency laboratory and the full-radio-wave radio frequency laboratory. The bottom workbench comprises a full-wave-band shielding base station and a full-wave-band testing rotary table. The full-wave-band test rotary table comprises a rotation driving mechanism, a shielding bottom plate structure, a connection supporting structure, a supporting structure and a wave absorbing layer. Wherein the connecting and supporting structure and the supporting structure jointly support a tested object, the surface, close to the tested object, of the supporting structure is used for bearing the tested object, and the connecting and supporting structure is used for supporting the supporting structure and dispersing and transmitting pressure, applied to the supporting structure, of the tested object to the shielding bottom plate structure. According to the bottom surface workbench of the full-radio-wave radio frequency laboratory and the full-radio-wave radio frequency laboratory, it is guaranteed that an object to be tested can be effectively supported, and multi-path interference from the ground can be effectively restrained.

The invention discloses an active noise reduction method and device for an automobile electromagnetic compatibility test. The method comprises the following steps: acquiring an original interference noise signal through a pre-arranged reference sensor array; processing the original interference noise signal through a pre-constructed intelligent noise reduction model to obtain a noise reduction control signal; a noise reduction signal is emitted according to the noise reduction control signal, and an electromagnetic field counteracting the original interference noise signal is formed; detecting the offset resultant field intensity signal in real time through a pre-arranged error sensor; and performing parameter optimization on the intelligent noise reduction model according to the synthesized field intensity signal. According to the method, the problem that the test accuracy is seriously influenced by environmental background noise and electromagnetic interference generated by test equipment in an automobile electromagnetic compatibility test can be solved.

The invention discloses a wave-absorbing box structure based on center expansion and a use method thereof, and relates to the technical field of electromagnetic shielding and electromagnetic compatibility test equipment, the wave-absorbing box structure comprises a supporting column, a top plate and a bottom plate, the top plate and the bottom plate are sequentially and fixedly arranged at the upper end and the lower end of the supporting column, and the supporting column, the top plate and the bottom plate form a wave-absorbing box core frame; compared with a traditional integrated wave-absorbing box, the wave-absorbing box has the advantages that a center unfolding type structure is constructed among the supporting columns, the top plate and the bottom plate, so that the vertical plates can be unfolded from a vertical state to a horizontal state under the action of the synchronous unfolding mechanism, four vertical surfaces of the whole wave-absorbing box are all in an open state when a to-be-tested sample is replaced, and the to-be-tested sample is replaced; the actions of unloading an old large object sample from the whole wave-absorbing box and feeding a new object sample to be tested into the inner cavity of the wave-absorbing box can be synchronously carried out, so that the old object sample does not need to be completely moved away and then the new object sample does not need to be moved into the inner cavity of the wave-absorbing box, the replacement process time is greatly shortened, and the overall operation efficiency is improved.

The invention discloses a GIS partial discharge detection cover plate of an integrated sensor and a mounting method and system, and belongs to the technical field of power equipment state monitoring, the GIS partial discharge detection cover plate comprises a cover plate main body and a mounting seat, the cover plate main body is provided with a mounting hole, and the cylindrical mounting seat corresponds to the mounting hole and is filled with an insulating material; a sensor module, a wireless transmission module and an edge computing unit are embedded and integrated in the insulating material; a connecting plate is arranged at the end part of the mounting seat. According to the device, the problem that partial discharge signals are difficult to capture due to the fact that built-in sensors of old GIS equipment are insufficient and the layout spacing is too long is solved, and the acquisition capacity of weak and accidental partial discharge signals is improved; the defect that an external sensor is susceptible to electromagnetic interference is overcome, and the signal-to-noise ratio and the accuracy of partial discharge detection signals are improved; non-intrusive accurate positioning of partial discharge of the GIS equipment is realized, and the high-efficiency detection requirement in a power-off maintenance window period is met; disassembly and sealing damage to the GIS equipment in the detection process are avoided, and the operation reliability of the equipment is guaranteed.

Disclosed is a test device for testing an electric characteristic of an object to be tested. The test device includes a block comprising a probe hole, a probe supported in the probe hole and retractably configured to connect a first contact point and a second contact point, and a coaxial cable comprising an insulated sheath, a main core surrounded with the insulated sheath, and a probe contact portion exposed from the insulated sheath and extended from the main core so as to be in contact with the probe. An axis of the probe is spaced apart from an axis of the coaxial cable, and the probe contact portion is extended from the main core toward the axis of the probe.

This invention provides a high-resistance probe station for chip testing, comprising a testing platform with a testing chamber connected to its upper surface; a loading mechanism including an x-axis translation module, a y-axis translation module, and a loading stage located within the testing chamber; a probe testing mechanism including a cylinder connected to the upper surface of the testing chamber, the cylinder having an output end connected to a testing probe, and an air-floating ring connected to the outside of the testing probe, the air-floating ring being positioned along the testing probe; and a vacuum adsorption mechanism including a vacuum pump located within the testing platform, the output end of the vacuum pump being connected to a negative pressure tube and a negative pressure tube. This invention significantly improves the insulation strength of localized areas by creating a dynamic high-voltage microenvironment at the test point through the air-floating ring, formed by the combined action of inert gas blowing and vacuum suction.

The invention discloses a testing device for a multichannel millimeter wave radio frequency chip, and relates to the technical field of radio frequency chip testing. The device comprises a structural body, a multilayer circuit board fixed on the structural body, and a waveguide cover plate combined with the structural body to form a waveguide. A substrate integrated waveguide and a strip line are integrated in the multilayer circuit board, and vertical conversion between a waveguide signal and an onboard signal is realized through a waveguide-microstrip transition structure. Through the integrated and double-sided design of the structural body, the multilayer board and the radio frequency link, the substrate integrated waveguide is used for vertical transmission of radio frequency signals, and the strip line is used for transmitting power supply and control signals, so that the problems that a traditional testing device is large in size, and ports of a W-waveband multichannel chip are dense and not easy to test are effectively solved; miniaturization, high integration and test convenience of the test device are realized.

The present application relates to the technical fields of engine test, and specifically discloses a water return device, which comprises a shielding pipeline, a drain pipe and a water return pipeline, the shielding pipeline is provided with an electromagnetic shielding structure, the water outlet end of the drain pipe is inserted into the water inlet end of the shielding pipeline with a gap, a splash-proof cover is arranged on the outer wall of the drain pipe, the open end of the splash-proof cover is arranged around the water inlet end of the shielding pipeline with a gap, the water inlet end of the water return pipeline is arranged around the water outlet end of the shielding pipeline, and the inner wall of the water inlet end of the water return pipeline and the outer wall of the water outlet end of the shielding pipeline are arranged with a gap. The water return device can avoid electromagnetic leakage, ensure the accuracy of electromagnetic compatibility test results of the whole machine, avoid affecting torque measurement, avoid water splashing at the gap, avoid condensate accumulation and steam leakage, and make the test environment in the shielding room meet the requirements of relevant standards and specifications.

The application relates to the technical field of automatic partial discharge sensor, and discloses an automatic equipment with a self-calibration low-power-consumption high-frequency partial discharge sensor, which comprises an equipment main body, one end of the equipment main body is provided with a conveyor body, the upper end of the conveyor body is provided with an automatic conveying assembly, the automatic conveying assembly comprises a conveying rack fixedly installed at the upper end of the conveyor body, the inner side wall of the conveying rack is fixedly connected with a mounting frame, one end of the mounting frame is fixedly connected with a guide groove block, the high-frequency partial discharge sensor can effectively reduce the interference of an electromagnetic environment on the sensor when the high-frequency partial discharge sensor is used, can avoid the damage of the vibration of the automatic equipment to the performance of the sensor after the sensor is hard-mounted, can improve the stability of signal receiving, can guarantee accuracy, can reduce the influence of external temperature and humidity changes on the sensor, and can further improve the use effect and service life of the automatic equipment with the self-calibration low-power-consumption high-frequency partial discharge sensor.