Sensor performance test experiment simulation equipment and operation method thereof

Abstract

The invention relates to sensor performance test experiment simulation equipment which comprises a device body and an upper cover, the upper cover is hinged to the device body, an experiment cavity is formed in the device body, a heating device is arranged at the bottom of the experiment cavity, a pressurization interface communicated with the experiment cavity is formed in the device body, and a guide rail device is arranged in the experiment cavity. The guide rail device comprises a track, a mounting seat sliding along the track, a material placing mechanism arranged on the mounting seat and used for attaching a sensor, and a driving mechanism used for driving the mounting seat to move. The driving mechanism comprises a waterproof and pressure-resistant driving motor and a lead screw assembly connected with the driving motor. The technical scheme is adopted; the device is used for simulating underwater (0-50 meters) water flow disturbance or an experimental environment needing to be pressurized, the temperature and pressure of an inner cavity of the device are controllable, the speed of water flow / gas is controllable, the pressure in an experimental cavity can be regulated and controlled only by filling a small amount of water, matching with an air compressor and exhausting gas into the device through a pressurizing port, and the underwater pressure environment of 0-50 meters can be simulated.

Description

Technical Field

[0001] The present invention relates to the technical field of detection equipment, and more particularly to a sensor performance test experiment simulation device and an operation method thereof. Background Art

[0002] The waterproof performance, pressure resistance performance of the sensor and its performance in complex environments play an important role in the accuracy of experiments. Therefore, a comprehensive detection is required before the sensor is put into use. However, the existing high-pressure experimental equipment cannot achieve or simultaneously achieve the simulation of underwater experimental environments with influencing factors such as water flow disturbance, air flow disturbance, temperature, and pressure. The existing sensor detection requires different experimental equipment to meet the experimental requirements, with complex operations and low efficiency. Summary of the Invention

[0003] In summary, to overcome the deficiencies of the prior art, the present invention provides a sensor performance test experiment simulation device.

[0004] To achieve the above object, the present invention provides the following technical solution: A sensor performance test experiment simulation device, including a device body and an upper cover, the upper cover is hingedly connected to the device body, an experimental chamber is provided inside the device body, a heating device is provided at the bottom of the experimental chamber, a pressurization interface communicating with the experimental chamber is provided on the device body, a guide rail device is provided inside the experimental chamber, the guide rail device includes a track, a mounting seat sliding along the track, a material placing mechanism provided on the mounting seat for attaching the sensor, and a driving mechanism for driving the mounting seat to move, and the driving mechanism includes a waterproof and pressure-resistant driving motor and a lead screw assembly connected to the driving motor.

[0005] By adopting the above technical solution, it is used to simulate the water flow disturbance or the experimental environment that requires pressurization at a depth of (0 - 50) meters underwater. The temperature and pressure inside the device cavity are controllable. A guide rail device composed of waterproof and pressure-resistant motors is used to simulate the change of water flow / gas velocity, so as to achieve controllable water flow / gas velocity. According to the static pressure principle, only a very small amount of water needs to be filled in the experimental chamber. With a supporting air compressor, the pressure inside the experimental chamber can be adjusted by pumping air into the device through the pressurization port, and the pressure environment at a depth of 0 - 50 meters underwater can be simulated. This device is mainly used to realize the experimental tests of sensors or other small devices under different environments. In addition, it can also be used for the simulation tests of other related environments.

[0006] The present invention is further provided that: on the device body, there are an upper shell, a middle shell and a lower shell arranged vertically. At the lower end of the upper shell, there is a first connecting ring for connecting with the middle shell. At the upper and lower ends of the middle shell, there are second connecting rings respectively. At the upper end of the lower shell, there is a third connecting ring for connecting with the middle shell. On the first connecting ring, the third connecting ring and the second connecting ring, there are mounting holes corresponding to install connection components. The first connecting ring, the third connecting ring and the second connecting ring are detachably connected by more than two groups of connection components. The middle shell is made of a transparent material.

[0007] By adopting the above technical solution, the height of the water level can be adjusted according to needs, but does not exceed the position of the middle shell. The middle shell is made of a transparent material, which is convenient for observing the performance of the product to be tested intuitively from all directions. By using connection components to cooperate with the first connecting ring, the third connecting ring and the second connecting ring, it can be quickly assembled with high stability.

[0008] The present invention is further provided that: the pressure boosting interface is connected to a three-way pipe. The three-way pipe includes a first branch connected to the pressure boosting interface, a second branch connected to an air pump and a third branch for exhausting gas. A safety valve is arranged between the first branch and the pressure boosting interface. A self-locking quick connector is arranged between the second branch and the air pump. A ball valve is arranged between the second branch and the self-locking quick connector. The third branch is connected to an exhaust valve.

[0009] By adopting the above technical solution, the self-locking quick connector connects the air pump to pressurize the cavity, which is convenient for quickly adjusting the pressure. The ball valve is opened when the air pump inflates and pressurizes, and closed when the pressurization stops. The exhaust valve is used to control the pressure relief and exhaust of the experimental cavity. The safety valve sets the safety pressure value and automatically relieves pressure when it is exceeded to prevent explosion.

[0010] The present invention is further provided that: the heating device includes a heating pipe arranged at the bottom of the experimental cavity and a connection joint arranged outside the device body. On the device body, there is also a temperature and pressure integrated dual-display meter for detecting the temperature and pressure inside the experimental cavity.

[0011] By adopting the above technical solution, the temperature can be adjusted through the heating pipe, the detection duration can be determined by timing by oneself, the pressure and temperature can be determined according to the temperature and pressure integrated dual-display meter, and the waterproofness, pressure resistance of the product to be tested, or its performance under the influence of temperature, water flow, gas, pressure, etc. can be detected.

[0012] The present invention is further provided that: a drain port is arranged at the bottom of the experimental cavity, and a drain valve is arranged at the position of the device body corresponding to the drain port.

[0013] By adopting the above technical solution, it is convenient to quickly drain water or adjust the water level, with simple operation and convenient use.

[0014] The present invention further provides that: a vacuum aviation plug interface for transmitting signal data is provided on the device body.

[0015] By adopting the above technical solution, the transmission signal can be transmitted by additionally configuring a wireless sensor or by wiring the signal at the vacuum aviation plug on the experimental chamber.

[0016] The present invention further provides: mounting plates are provided on both sides of the experimental chamber, the track and the mounting plates are detachably connected via a connecting piece, the material placement mechanism includes a mechanical claw, and an adjustment component for adjusting the height of the mechanical claw is provided between the mechanical claw and the mounting seat.

[0017] By adopting the above technical solution, the assembly is convenient. The track is placed in the experimental cavity, and then the installation fixture is assembled with the track, and then assembled with the installation cross bar. The assembly is simple and convenient, and the stability is high.

[0018] The present invention is further provided with: a mounting partition is provided at the bottom of the experimental chamber, the heating device is provided below the mounting partition, a plurality of water-permeable holes are provided on the mounting partition, and the guide rail device is detachably connected to the mounting partition.

[0019] By adopting the above technical solution, the partition is installed to avoid affecting the heating device, and the guide rail device is detachably connected to the installed partition to support the installation of different test components.

[0020] The present invention further provides that: a sealing ring is provided between the upper cover and the device body, and the upper cover and the device body are connected via a plurality of sets of tightening hand wheels.

[0021] By adopting the above technical solution, the sealing performance in the experimental chamber is enhanced.

[0022] The present invention provides the following technical scheme: an operation method of a sensor performance test simulation device, comprising the following steps: S1: opening an upper cover, removing a material placement mechanism, and attaching a flexible sensor to be tested to the material placement mechanism; S2: connecting the electrode wires at both ends of the flexible sensor to a vacuum aviation plug interface through leads; S3: injecting water into the experimental chamber until the water level can submerge the flexible sensor but does not exceed the material placement mechanism; S4: closing the upper cover and adjusting and tightening it with a tightening hand wheel; S5: controlling the temperature in the experimental chamber by a heating device, adjusting the pressure in the experimental chamber by a ball valve, and observing and monitoring the internal pressure and water temperature of the chamber during the experiment with a temperature-pressure integrated dual display meter; S6: connecting a digital multimeter to the vacuum aviation plug interface, turning on the digital multimeter and supporting data analysis software for testing; S7: after completing the test, venting air through an exhaust valve to release the internal pressure; S8: opening the upper cover, disconnecting the leads used for transmitting data from the electrode wires at both ends of the flexible sensor; S9: removing the flexible sensor, draining the water inside the experimental chamber through a drain valve, and closing the upper cover.

[0023] By adopting the above technical solution, the influence of various situations on the performance of the sensor can be tested through one device. For example: 1. To explore the influence of water flow rate on the sensor performance, the temperature and pressure inside the experimental chamber are set to be constant, and different guide rail speeds are set; 2. To explore the influence of temperature on the sensor performance, the pressure and guide rail speed inside the experimental chamber are set to be constant, and different temperatures are set; 3. To explore the influence of pressure (simulating different water depth environments) on the sensor performance, the temperature and guide rail speed inside the experimental chamber are set to be constant, and different pressures are set.

[0024] The following describes the specific implementation manners of the present invention in conjunction with the accompanying drawings and embodiments. Description of the Drawings

[0025] Figure 1 It is a perspective view of an embodiment of the present invention.

[0026] Figure 2 It is a sectional view of an embodiment of the present invention.

[0027] Reference Numerals: 1. Device body, 11. Experimental chamber, 111. Drain outlet, 112. Drain valve, 113. Mounting plate, 114. Connecting member, 12. Booster interface, 14. Vacuum aviation plug interface, 15. Upper housing, 151. First connection ring, 16. Middle housing, 161. Second connection ring, 17. Lower housing, 171. Third connection ring, 18. Three-way pipe, 181. First branch, 182. Second branch, 183. Third branch, 184. Safety valve, 185. Self-locking quick connector, 186. Ball valve, 187. Exhaust valve, 2. Upper cover, 3. Heating device, 31. Heating pipe, 32. Connection joint, 4. Guide rail device, 41. Track, 42. Mounting seat, 43. Material placing mechanism, 431. Mechanical claw, 432. Adjusting component, 44. Driving mechanism, 441. Driving motor, 442. Lead screw assembly, 5. Temperature and pressure integrated dual display meter, 6. Partition board, 61. Water permeable hole, 7. Tightening handwheel, 8. Connection component. Specific Embodiment

[0028] This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. Those skilled in the art can make modifications to this embodiment without creative contributions according to needs after reading this specification, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

[0029] See the attached Figure 1-2, a sensor performance test experiment simulation device disclosed in this embodiment includes a device body 1 and an upper cover 2. The upper cover 2 is hingedly connected to the device body 1. An experimental chamber 11 is provided inside the device body 1. A heating device 3 is provided at the bottom of the experimental chamber 11. A pressurization interface 12 communicating with the experimental chamber 11 is provided on the device body 1. A guide rail device 4 is provided inside the experimental chamber 11. The guide rail device 4 includes a track 41, a mounting seat 42 sliding along the track 41, a material placing mechanism 43 provided on the mounting seat 42 for attaching a sensor, and a driving mechanism 44 for driving the mounting seat 42 to move. The driving mechanism 44 includes a waterproof and pressure-resistant driving motor 441 and a lead screw assembly 442 connected to the driving motor 441.

[0030] This embodiment is further provided: The device body includes an upper shell 15, a middle shell 16, and a lower shell 17 arranged vertically. A first connecting ring 151 for connecting to the middle shell 16 is provided at the lower end of the upper shell 15. Second connecting rings 161 are provided at the upper and lower ends of the middle shell 16 respectively. A third connecting ring 171 for connecting to the middle shell 16 is provided at the upper end of the lower shell 17. Mounting holes for installing the connecting component 8 are correspondingly provided on the first connecting ring 151, the third connecting ring 171, and the second connecting ring 161. The first connecting ring 151, the third connecting ring 171, and the second connecting ring 161 are detachably connected by two or more groups of connecting components 8. The middle shell 16 is made of a transparent material.

[0031] This embodiment is further provided: The pressurization interface 12 is connected to a three-way pipe 18. The three-way pipe 18 includes a first branch 181 connected to the pressurization interface 12, a second branch 182 connected to an air pump, and a third branch 183 for exhausting gas. A safety valve 184 is provided between the first branch 181 and the pressurization interface 12. A self-locking quick connector 185 is provided between the second branch 182 and the air pump. A ball valve 186 is provided between the second branch 182 and the self-locking quick connector 185. The third branch 183 is connected to an exhaust valve 187.

[0032] This embodiment is further provided: The heating device 3 includes a heating pipe 31 provided at the bottom of the experimental chamber 11 and a connection joint 32 provided outside the device body 1. A temperature and pressure integrated dual-display meter 5 for detecting the temperature and pressure inside the experimental chamber 11 is also provided on the device body 1.

[0033] This embodiment is further provided: A drain port 111 is provided at the bottom of the experimental chamber 11. A drain valve 112 is provided on the device body 1 corresponding to the position of the drain port 111.

[0034] This embodiment is further provided: A vacuum aviation plug interface 14 for transmitting signal data is provided on the device body 1.

[0035] In this embodiment, further settings are made as follows: mounting plates 113 are arranged on both sides inside the experimental chamber 11. The track 41 and the mounting plate 113 are detachably connected through a connecting member 114. The material placing mechanism 43 includes a mechanical claw 431. An adjusting assembly 432 for adjusting the height of the mechanical claw 431 is arranged between the mechanical claw 431 and the mounting seat 42.

[0036] In this embodiment, further settings are made as follows: a mounting partition 6 is arranged at the bottom inside the experimental chamber 11. The heating device 3 is arranged below the mounting partition 6. A plurality of water permeable holes 61 are arranged on the mounting partition 6. The guide rail device 4 and the mounting partition 6 are detachably connected.

[0037] In this embodiment, further settings are made as follows: a sealing ring is arranged between the upper cover 2 and the device body 1. The upper cover 2 and the device body 1 are connected through a plurality of sets of fastening handwheels 7.

[0038] Embodiment 1: An operation method of a sensor performance test experimental simulation device includes the following steps: S1: Open the upper cover 2 and attach the flexible sensor to be tested to the material placing mechanism 43; S2: Connect the electrode wires at both ends of the flexible sensor to the vacuum aviation plug interface 14 through leads; S3: Pour water into the experimental chamber 11 until the water level can submerge the flexible sensor but does not exceed the material placing mechanism 43; S4: Close the upper cover 2 and tighten it through the fastening handwheel; S5: Control the temperature inside the experimental chamber 11 through the heating device 3, adjust the pressure inside the experimental chamber 11 through the ball valve 186, and the temperature and pressure integrated dual display meter 5 observes and monitors the internal pressure and water temperature of the chamber during the experiment (the heating device 3 is powered on, and the water temperature is heated to 28 degrees (observed through the temperature and pressure integrated dual display meter 5), and heating stops after reaching the target temperature; secondly, air is filled into the experimental chamber 11 through the control valve 121 to achieve the purpose of pressurization, and pressurization stops when it reaches 0.2 MPa (observed through the temperature and pressure integrated dual display meter 5). Finally, first set the moving speed of the mounting seat 42 to 0.5 m / min, and collect data with a digital multimeter, and then set the moving speed of the mounting seat 42 to 0.8 m / min); S6: Connect the digital multimeter to the vacuum aviation plug interface 14, turn on the digital multimeter and the supporting data analysis software to perform tests and collect data; S7: After the test is completed, release the air through the exhaust valve 187 to relieve the internal pressure; S8: Open the upper cover 2 and disconnect the leads for transmitting data from the electrode wires at both ends of the flexible sensor; S9: Remove the flexible sensor, drain the water inside the experimental chamber 11 through the drain valve 112, and close the upper cover 2.

[0039] A sensor performance test experimental simulation device can be used for different tests: 1) To explore the influence of water flow rate on the sensor performance, the temperature and pressure inside the box are set to be constant, and different guide rail speeds are set; 2) To explore the influence of temperature on the sensor performance, the pressure and guide rail speed inside the box are set to be constant, and different temperatures are set; 3) To explore the influence of pressure (simulating different water depth environments) on the sensor performance, the temperature and guide rail speed inside the box are set to be constant, and different pressures are set.

[0040] According to different test contents, the specific environmental parameters set in step S5 are different.

[0041] The flexible sensor reflects its working performance through the change of resistance signal and response frequency. The data analysis equipment selected is the DMM resistance signal test module of a digital multimeter and Keithley KickStart software. Different data analysis software can be used according to the different working principles of the detected sensors.

[0042] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "bottom", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, the above "between" not only refers to the orientation and position, but also includes the meaning of the interaction between different parts.

[0043] Although terms such as device body 1, experimental cavity 11, drain outlet 111, drain valve 112, pressurization interface 12, vacuum aviation plug interface 14, upper housing 15, first connection ring 151, middle housing 16, second connection ring 161, lower housing 17, third connection ring 171, three-way pipe 18, first branch 181, second branch 182, third branch 183, safety valve 184, self-locking quick connector 185, ball valve 186, exhaust valve 187, upper cover 2, heating device 3, heating pipe 31, connection joint 32, guide rail device 4, track 41, mounting seat 42, material placing mechanism 43, mechanical claw 431, adjustment component 432, driving mechanism 44, driving motor 441, screw rod assembly 442, temperature and pressure integrated dual display meter 5, partition 6, water permeable hole 61, fastening handwheel 7, connection component 8 are used more in this article, the possibility of using other terms is not excluded. Using these terms is only for more conveniently describing and explaining the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. A sensor performance test experimental simulation device, characterized in that: The device comprises a device body and an upper cover, wherein the upper cover is hingedly connected to the device body, an experimental cavity is arranged in the device body, a heating device is arranged at the bottom of the experimental cavity, a pressurization interface connected to the experimental cavity is arranged on the device body, a guide rail device is arranged in the experimental cavity, the guide rail device comprises a track, a mounting seat sliding along the track, a material placement mechanism arranged on the mounting seat for attaching a sensor, and a driving mechanism for driving the mounting seat to move, wherein the driving mechanism comprises a waterproof and pressure-resistant driving motor and a screw assembly connected to the driving motor.

2. The experimental simulation device for testing the performance of a sensor according to claim 1, characterized in that: The device body includes an upper shell, a middle shell and a lower shell which are arranged in an upper and lower manner. The lower end of the upper shell is provided with a first connecting ring for connecting with the middle shell, the upper and lower ends of the middle shell are respectively provided with second connecting rings, and the upper end of the lower shell is provided with a third connecting ring for connecting with the middle shell. The first connecting ring, the third connecting ring and the second connecting ring are correspondingly provided with mounting holes for installing connecting components. The first connecting ring, the third connecting ring and the second connecting ring are detachably connected by more than two groups of connecting components, and the middle shell is made of transparent material.

3. The experimental simulation device for testing the performance of a sensor according to claim 1, characterized in that: The boost interface is connected to a three-way pipe, which includes a first branch connected to the boost interface, a second branch connected to the air pump, and a third branch for exhaust. A safety valve is arranged between the first branch and the boost interface, a self-locking quick connector is arranged between the second branch and the air pump, a ball valve is arranged between the second branch and the self-locking quick connector, and the third branch is connected to the exhaust valve.

4. A sensor performance test experiment simulation device according to claim 1, characterized in that: The heating device comprises a heating tube arranged at the bottom of the experimental chamber and a connecting joint arranged outside the device body. The device body is also provided with a temperature-pressure integrated dual display meter for detecting the temperature and pressure inside the experimental chamber.

5. A sensor performance test experiment simulation device according to claim 1, characterized in that: A drain port is provided at the bottom of the experimental chamber, and a drain valve is provided at a position of the device body corresponding to the drain port.

6. The experimental simulation device for testing the performance of a sensor according to claim 1, characterized in that: The device body is provided with a vacuum aviation plug interface for transmitting signal data.

7. A sensor performance test experiment simulation device according to claim 1, characterized in that: Mounting plates are arranged on both sides of the experimental chamber, the track and the mounting plates are detachably connected via a connecting piece, the material placing mechanism comprises a mechanical claw, and an adjusting component for adjusting the height of the mechanical claw is arranged between the mechanical claw and the mounting seat.

8. A sensor performance test experiment simulation device according to claim 1, characterized in that: A mounting partition is arranged at the bottom of the experimental chamber, the heating device is arranged below the mounting partition, a plurality of water-permeable holes are arranged on the mounting partition, and the guide rail device is detachably connected to the mounting partition.

9. A sensor performance test experiment simulation device according to claim 1, characterized in that: A sealing ring is arranged between the upper cover and the device body, and the upper cover and the device body are connected through a plurality of sets of fastening hand wheels.

10. An operating method of a sensor performance test experimental simulation device, characterized in that: The following steps are involved: S1: Open the upper cover, remove the material placement mechanism, and attach the flexible sensor to be measured to the material placement mechanism; S2: Connect the electrode wires at both ends of the flexible sensor to the vacuum aviation plug interface through leads; S3: Pour water into the experimental cavity until the water level can submerge the flexible sensor but does not exceed the material placement mechanism; S4: Close the upper cover and adjust and tighten it with the fastening handwheel; S5: Control the temperature in the experimental cavity through the heating device, adjust the pressure in the experimental cavity through the ball valve, and observe and monitor the internal pressure and water temperature of the cavity during the experiment with a temperature and pressure integrated dual display meter; S6: Connect the digital multimeter to the vacuum aviation plug interface, and turn on the digital multimeter and the supporting data analysis software for testing; S7: After the test is completed, release the air through the exhaust valve to relieve the internal pressure; S8: Open the upper cover and disconnect the leads for data transmission from the electrode wires at both ends of the flexible sensor; S9: Remove the flexible sensor, empty the water inside the experimental cavity through the drain valve, and close the upper cover.

Images