CN113108986A - Detection device and test system of sensor - Google Patents
Detection device and test system of sensor Download PDFInfo
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- CN113108986A CN113108986A CN202110409279.9A CN202110409279A CN113108986A CN 113108986 A CN113108986 A CN 113108986A CN 202110409279 A CN202110409279 A CN 202110409279A CN 113108986 A CN113108986 A CN 113108986A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L25/00—Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L27/00—Testing or calibrating of apparatus for measuring fluid pressure
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/08—Shock-testing
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- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a detection device of a sensor, comprising: the device comprises a pressure detection mechanism, a drop detection mechanism, a waterproof detection mechanism and a fixing mechanism; the pressure detection mechanism is used for detecting the use precision of the sensor and comprises a shell, a first plate body is fixedly connected inside the shell, a hydraulic cylinder is fixedly installed at the inner top of the shell, a piston rod of the hydraulic cylinder is fixedly connected with a pressing plate, and a PLC (programmable logic controller) and a display are fixedly installed at the inner top of the hydraulic cylinder; when the device is used, the hydraulic cylinder is matched with the PLC to detect the precision of the sensor, and the frame body drives the sensor to be matched with the graduated scale to detect the falling performance of the sensor, so that the protective performance of the sensor in subsequent use can be conveniently judged.
Description
Technical Field
The invention relates to the technical field of sensor detection, in particular to a detection device of a sensor, and particularly relates to a test system of the sensor.
Background
Pressure sensor can experience pressure signal to can convert pressure signal to the device or the device of the signal of telecommunication of available output according to certain law, after pressure sensor produces, need detect it, the detection device of current sensor, in-process using, the precision that is simple pressure sensor usually detects, the functionality is comparatively single, can't detect pressure sensor's the performance that falls, lead to follow-up when using pressure sensor, be not convenient for judge pressure sensor's protective properties, and be not convenient for test pressure sensor's waterproof performance, reduce the detection effect to the sensor.
Disclosure of Invention
The present invention is directed to a sensor detection device and a test system to solve the above problems.
In order to achieve the purpose, the invention provides the following technical scheme: a detection device of a sensor, comprising: the device comprises a pressure detection mechanism, a drop detection mechanism, a waterproof detection mechanism and a fixing mechanism;
the pressure detection mechanism is used for detecting the use precision of the sensor and comprises a shell, a first plate body is fixedly connected inside the shell, a hydraulic cylinder is fixedly installed at the inner top of the shell, a piston rod of the hydraulic cylinder is fixedly connected with a pressing plate, and a PLC (programmable logic controller) and a display are fixedly installed at the inner top of the hydraulic cylinder;
the falling detection mechanism is used for detecting the falling resistance of the sensor and comprises a second placing plate, the second placing plate is fixedly connected to the front surface of the shell, the front surface of the shell is fixedly connected with a graduated scale, the front surface of the shell is fixedly connected with a second fixing plate, one side of the second fixing plate is provided with a limiting sliding groove, the inner side wall of the limiting sliding groove is connected with a limiting sliding block in a sliding mode, one side of the limiting sliding block is fixedly connected with a frame body, a second electric push rod is fixedly installed inside the frame body, the piston rod of the second electric push rod is fixedly connected with a third fixing plate, and a fixing mechanism is arranged on the frame body;
wherein, waterproof detection mechanism is used for detecting the waterproof performance of sensor, just waterproof detection mechanism includes the water tank, the water tank set up in the interior bottom of casing, the inside wall fixed mounting of casing has the water pump, the water inlet intercommunication of water pump has the inlet tube, the one end of inlet tube with one side intercommunication of water tank, the lower fixed surface of first plate body installs the shower nozzle, the delivery port intercommunication of water pump has the outlet pipe, the one end of outlet pipe with the water inlet intercommunication of shower nozzle, the inside wall fixedly connected with box body of water tank, the apopore has evenly been seted up to the lower surface of box body.
By adopting the technical scheme, the detected sensor is placed on the first placing plate and is connected with the PLC, the pressure value of the hydraulic cylinder is set through the PLC, the hydraulic cylinder is started to drive the pressing plate to press down the sensor on the first placing plate, the data generated by pressing down the sensor is compared with the pressing down value of the hydraulic cylinder, the comparison result is transmitted to the display to be displayed, the precision of the sensor is analyzed, then the sensor is placed in the frame body, the second electric push rod is started to drive the third fixing plate to extrude and fix the sensor, then the graduated scale is observed, the frame body slides in the limiting sliding groove through the limiting slide block, the height of the sensor is adjusted, the second electric push rod is controlled to release the fixation of the sensor, the sensor falls onto the second placing plate, whether the sensor is damaged or not is observed, the sensor is placed in the box body, the water tank is filled with a proper amount of water, the water pump is started, the water pump pumps out the water in the water tank through the water inlet pipe, then the water is discharged into the spray head through the water outlet pipe, the spray head sprays the water to the sensor, the waterproof performance of the sensor is detected, and meanwhile, the sensor can be soaked in the water tank to detect the waterproof performance of the sensor.
Preferably, the pressure detection mechanism further comprises a first electric push rod, the first electric push rod is fixedly installed on the inner side of the shell, a piston rod of the first electric push rod is fixedly connected with a first fixing plate, and the upper surface of the first plate body is fixedly connected with a first placing plate.
Through adopting above-mentioned technical scheme, first electric putter drives first fixed plate and extrudees placing the first sensor of placing on the board, plays fixed effect to the sensor.
Preferably, the falling detection mechanism further comprises a first groove, and the first groove is arranged on the upper surface of the second placing plate.
Through adopting above-mentioned technical scheme, the setting of first recess restricts the position of falling the panel of surveying the use.
Preferably, the waterproof detection mechanism further comprises a drain pipe, one end of the drain pipe is communicated with one side of the water tank, and a valve is installed on the outer side wall of the drain pipe.
Through adopting above-mentioned technical scheme, open the valve and be convenient for discharge the water in the water tank from the drain pipe.
Preferably, the fixing mechanism comprises a second plate body, the second plate body is fixedly connected to one side of the frame body, a threaded through hole is formed in the rear surface of the second plate body, a threaded rod is connected to the inner side wall of the threaded through hole in a threaded mode, and a knob is fixedly connected to one end of the threaded rod.
Through adopting above-mentioned technical scheme, after the position control of framework, the threaded rod rotates in the screw through-hole for the threaded rod supports the second fixed plate, fixes the position of framework.
Preferably, the fixing mechanism further comprises a rubber pad adhered to the front surface of the second fixing plate.
Through adopting above-mentioned technical scheme, the rubber pad has increased the frictional force between threaded rod and the second fixed plate to improve the fixed effect of threaded rod to the framework.
Preferably, the rear surface of the shell is hinged with two door bodies, and the rear surfaces of the door bodies are fixedly connected with handles.
Through adopting above-mentioned technical scheme, the door body plays the effect of protection to the part in the casing.
Preferably, a through groove is formed in the rear surface of the water tank, a third plate body is fixedly connected to the inner side wall of the through groove, and a second groove is formed in the front surface of the second placing plate.
Through adopting above-mentioned technical scheme, the material of third plate body is transparent glass, is convenient for observe the water level in the water tank, and the second recess is convenient for take out the panel in the first recess.
A system for testing a sensor, the system comprising: the electric control end of the hydraulic cylinder is electrically connected with the control output end of the PLC, the signal output end of the test sensor is connected with the signal input end of the PLC, and the signal output end of the PLC is connected with the signal input end of the display.
Through adopting above-mentioned technical scheme, control the pressure value of pneumatic cylinder, compare with the pressure value of test sensor simultaneously.
Preferably, the electric control end of the first electric push rod, the electric control end of the second electric push rod and the electric control end of the water pump are electrically connected with the control output end of the PLC controller.
Through adopting above-mentioned technical scheme, control first electric putter, second electric putter and water pump.
Compared with the prior art, the invention has the beneficial effects that:
when the device is used, the hydraulic cylinder is matched with the PLC to detect the precision of the sensor, and the frame body drives the sensor to be matched with the graduated scale to detect the falling performance of the sensor, so that the protective performance of the sensor in subsequent use can be conveniently judged.
Secondly, through putting into box body and water tank with the sensor, the waterproof performance that the cooperation water pump can be to the sensor tests.
The invention has more comprehensive detection range and rich functionality to the sensor, and is beneficial to the detection and use of the sensor.
Drawings
FIG. 1 is a schematic structural diagram of a detecting device of a sensor according to the present invention;
FIG. 2 is a schematic side view of a detecting device of the sensor of the present invention;
FIG. 3 is a schematic view of a connection structure between a frame and a second fixing plate of the detecting device of the sensor of the present invention;
FIG. 4 is a schematic view of the internal structure of the casing of the detecting device of the sensor of the present invention;
FIG. 5 is a schematic view of the structure of the water tank of the detection device of the sensor of the present invention;
fig. 6 is a schematic system flow diagram of a sensor testing system according to the present invention.
In the figure: 10. a pressure detection mechanism; 11. a housing; 12. a first plate body; 13. a hydraulic cylinder; 14. pressing a plate; 15. a PLC controller; 16. a display; 17. a first electric push rod; 18. a first fixing plate; 19. a first placing plate; 20. a drop detection mechanism; 21. a second placing plate; 22. a graduated scale; 23. a second fixing plate; 24. a limiting chute; 25. a limiting slide block; 26. a frame body; 27. a second electric push rod; 28. a third fixing plate; 29. a first groove; 30. a waterproof detection mechanism; 31. a water tank; 32. a water pump; 33. a water inlet pipe; 34. a spray head; 35. a water outlet pipe; 36. a box body; 37. a water outlet hole; 38. a drain pipe; 39. a valve; 40. a fixing mechanism; 41. a second plate body; 42. a threaded through hole; 43. a threaded rod; 44. a knob; 45. a rubber pad; 5. a door body; 6. a handle; 7. a through groove; 8. a third plate body; 9. a second groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution:
as shown in fig. 1 to 6, a detection device of a sensor includes: a pressure detection mechanism 10, a drop detection mechanism 20, a waterproof detection mechanism 30 and a fixing mechanism 40;
the pressure detection mechanism 10 is used for detecting the use accuracy of the sensor;
the falling detection mechanism 20 is used for detecting the falling resistance of the sensor;
the waterproof detection mechanism 30 is used to detect the waterproof performance of the sensor.
As shown in fig. 1 to 4, the pressure detection mechanism 10 is composed of: the pressure detection mechanism 10 comprises a shell 11, a first plate body 12 is fixedly connected inside the shell 11, a hydraulic cylinder 13 is fixedly mounted at the inner top of the shell 11, a pressing plate 14 is fixedly connected to a piston rod of the hydraulic cylinder 13, a PLC (programmable logic controller) 15 and a display 16 are fixedly mounted at the inner top of the hydraulic cylinder 13, the pressure detection mechanism 10 further comprises a first electric push rod 17, the first electric push rod 17 is fixedly mounted at the inner side of the shell 11, a first fixing plate 18 is fixedly connected to the piston rod of the first electric push rod 17, and a first placing plate 19 is fixedly connected to the upper surface of the first plate body 12;
principle of the pressure detection mechanism 10: place the sensor that detects on first board 19 of placing, the sensor that detects is connected with PLC controller 15, set up the pressure value of pneumatic cylinder 13 through PLC controller 15, it pushes down to start up pneumatic cylinder 13 and drive clamp plate 14 the first sensor of placing on board 19, the data that push down the sensor and produce are compared with the numerical value of pushing down of pneumatic cylinder 13, the result of will comparing is transmitted and is shown to 16 enterprising line display, thereby carry out the analysis to the precision of sensor, first electric putter 17 drives first fixed plate 18 and extrudees the first sensor of placing on board 19, play fixed effect to the sensor.
As shown in fig. 1 to 3, the drop detection mechanism 20 is composed of: the falling detection mechanism 20 comprises a second placing plate 21, the second placing plate 21 is fixedly connected to the front surface of the shell 11, the front surface of the shell 11 is fixedly connected with a graduated scale 22, the front surface of the shell 11 is fixedly connected with a second fixing plate 23, one side of the second fixing plate 23 is provided with a limiting sliding chute 24, the inner side wall of the limiting sliding chute 24 is slidably connected with a limiting sliding block 25, one side of the limiting sliding block 25 is fixedly connected with a frame body 26, a second electric push rod 27 is fixedly installed inside the frame body 26, a piston rod of the second electric push rod 27 is fixedly connected with a third fixing plate 28, a fixing mechanism 40 is arranged on the frame body 26, the falling detection mechanism 20 further comprises a first groove 29, and the first groove 29 is formed in the upper surface of the second;
principle of the fall detection mechanism 20: in placing framework 26 with the sensor, start second electric putter 27, it is fixed to drive third fixed plate 28 and extrude the sensor, then observe scale 22, slide framework 26 in spacing spout 24 through spacing slider 25, the height of adjustment sensor, control second electric putter 27, remove the fixed to the sensor, the sensor drops to the second and places on the board 21, whether observe the sensor and damage, the setting of first recess 29 is restricted the position of falling the panel of surveying use.
As shown in fig. 1 to 5, the waterproof detection mechanism 30 is composed of: the waterproof detection mechanism 30 comprises a water tank 31, the water tank 31 is arranged at the inner bottom of the shell 11, a water pump 32 is fixedly mounted on the inner side wall of the shell 11, a water inlet of the water pump 32 is communicated with a water inlet pipe 33, one end of the water inlet pipe 33 is communicated with one side of the water tank 31, a spray head 34 is fixedly mounted on the lower surface of the first plate body 12, a water outlet of the water pump 32 is communicated with a water outlet pipe 35, one end of the water outlet pipe 35 is communicated with a water inlet of the spray head 34, a box body 36 is fixedly connected to the inner side wall of the water tank 31, water outlet holes 37 are uniformly formed in the lower surface of the box body 36, the waterproof detection mechanism 30;
principle of the waterproof detection mechanism 30: the sensor is placed in the box body 36, a proper amount of water is filled into the water tank 31, the water pump 32 is started, the water in the water tank 31 is pumped out through the water inlet pipe 33 by the water pump 32 and then is discharged into the spray head 34 through the water outlet pipe 35, the spray head 34 sprays out the water to spray the sensor, the waterproof performance of the sensor is detected, meanwhile, the sensor can be soaked in the water tank 31, the waterproof performance of the sensor is detected, and the valve 39 is opened to facilitate the water in the water tank 31 to be discharged from the water discharge pipe 38.
As shown in fig. 1 to 3, the fixing mechanism 40 is composed of: the fixing mechanism 40 comprises a second plate body 41, the second plate body 41 is fixedly connected to one side of the frame body 26, a threaded through hole 42 is formed in the rear surface of the second plate body 41, a threaded rod 43 is connected to the inner side wall of the threaded through hole 42 in a threaded manner, a knob 44 is fixedly connected to one end of the threaded rod 43, the fixing mechanism 40 further comprises a rubber pad 45, and the rubber pad 45 is adhered to the front surface of the second fixing plate 23;
principle of the fixing mechanism 40: after the position of the frame 26 is adjusted, the threaded rod 43 rotates in the threaded through hole 42, so that the threaded rod 43 abuts against the second fixing plate 23 to fix the position of the frame 26, and the rubber pad 45 increases the friction force between the threaded rod 43 and the second fixing plate 23, thereby improving the fixing effect of the threaded rod 43 on the frame 26.
As shown in fig. 2, two door bodies 5 are hinged to the rear surface of the housing 11, and a handle 6 is fixedly connected to the rear surface of the door body 5. The door 5 has a protective effect on components in the housing 11.
As shown in fig. 4, a through groove 7 is formed in the rear surface of the water tank 31, a third plate body 8 is fixedly connected to the inner side wall of the through groove 7, and a second groove 9 is formed in the front surface of the second placing plate 21. The third plate body 8 is made of transparent glass, so that the water level in the water tank 31 can be observed conveniently, and the second groove 9 can be used for taking out the plate in the first groove 29 conveniently.
A system for testing a sensor, the system comprising: the electric control end of the hydraulic cylinder 13 is electrically connected with the control output end of the PLC 15, the signal output end of the test sensor is connected with the signal input end of the PLC 15, and the signal output end of the PLC 15 is connected with the signal input end of the display 16; the pressure value of the hydraulic cylinder 13 is controlled and compared with the pressure value of the test sensor.
Preferably, the electric control end of the first electric push rod 17, the electric control end of the second electric push rod 27 and the electric control end of the water pump 32 are electrically connected with the control output end of the PLC controller 15; the first electric push rod 17, the second electric push rod 27 and the water pump 32 are controlled.
According to the technical scheme, the working steps of the scheme are summarized and carded:
the detected sensor is placed on a first placing plate 19 and connected with a PLC (programmable logic controller) 15, the pressure value of a hydraulic cylinder 13 is set through the PLC 15, the hydraulic cylinder 13 is started to drive a pressing plate 14 to press down the sensor on the first placing plate 19, data generated by the pressing down sensor is compared with the pressing down value of the hydraulic cylinder 13, the comparison result is transmitted to a display 16 to be displayed, the precision of the sensor is analyzed, then the sensor is placed in a frame 26, a second electric push rod 27 is started to drive a third fixing plate 28 to extrude and fix the sensor, then a graduated scale 22 is observed, the frame 26 slides in a limiting sliding groove 24 through a limiting sliding block 25, the height of the sensor is adjusted, the second electric push rod 27 is controlled to release the fixation of the sensor, the sensor falls onto a second placing plate 21 to observe whether the sensor is damaged or not, the sensor is placed in the box body 36, a proper amount of water is injected into the water tank 31, the water pump 32 is started, the water in the water tank 31 is pumped out by the water pump 32 through the water inlet pipe 33 and then is discharged into the spray head 34 through the water outlet pipe 35, the spray head 34 sprays the water out to spray the sensor, the waterproof performance of the sensor is detected, and meanwhile, the sensor can be soaked in the water tank 31 to detect the waterproof performance of the sensor.
To sum up:
when the device is used, the hydraulic cylinder 13 is matched with the PLC 15 to detect the accuracy of the sensor, and the frame 26 drives the sensor to be matched with the graduated scale 22 to detect the falling performance of the sensor, so that the protective performance of the sensor in subsequent use can be conveniently judged.
Secondly, the waterproof performance of the sensor can be tested by placing the sensor into the box body 36 and the water tank 31 and matching with the water pump 32.
The invention has more comprehensive detection range and rich functionality to the sensor, and is beneficial to the detection and use of the sensor.
The parts not involved in the present invention are the same as or can be implemented by the prior art. Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A sensing device for a sensor, comprising: a pressure detection mechanism (10), a drop detection mechanism (20) and a waterproof detection mechanism (30);
the pressure detection mechanism (10) is used for detecting the use accuracy of the sensor, the pressure detection mechanism (10) comprises a shell (11), a first plate body (12) is fixedly connected inside the shell (11), a hydraulic cylinder (13) is fixedly installed at the inner top of the shell (11), a piston rod of the hydraulic cylinder (13) is fixedly connected with a pressing plate (14), and a PLC (programmable logic controller) (15) and a display (16) are fixedly installed at the inner top of the hydraulic cylinder (13);
wherein the falling detection mechanism (20) is used for detecting the falling resistance of the sensor, and the fall detection mechanism (20) comprises a second placing plate (21), the second placing plate (21) is fixedly connected with the front surface of the shell (11), the front surface of the shell (11) is fixedly connected with a graduated scale (22), the front surface of the shell (11) is fixedly connected with a second fixing plate (23), one side of the second fixing plate (23) is provided with a limiting sliding chute (24), the inner side wall of the limiting sliding chute (24) is connected with a limiting sliding block (25) in a sliding way, one side of the limiting slide block (25) is fixedly connected with a frame body (26), a second electric push rod (27) is fixedly arranged in the frame body (26), a piston rod of the second electric push rod (27) is fixedly connected with a third fixing plate (28), and a fixing mechanism (40) is arranged on the frame body (26);
wherein the waterproof detection mechanism (30) is used for detecting the waterproof performance of the sensor, the waterproof detection mechanism (30) comprises a water tank (31), the water tank (31) is arranged at the inner bottom of the shell (11), a water pump (32) is fixedly arranged on the inner side wall of the shell (11), a water inlet of the water pump (32) is communicated with a water inlet pipe (33), one end of the water inlet pipe (33) is communicated with one side of the water tank (31), a spray head (34) is fixedly arranged on the lower surface of the first plate body (12), a water outlet of the water pump (32) is communicated with a water outlet pipe (35), one end of the water outlet pipe (35) is communicated with the water inlet of the spray head (34), the inside wall fixedly connected with box body (36) of water tank (31), apopore (37) have evenly been seted up to the lower surface of box body (36).
2. The detecting device of a sensor according to claim 1, wherein: the pressure detection mechanism (10) further comprises a first electric push rod (17), the first electric push rod (17) is fixedly installed on the inner side of the shell (11), a piston rod of the first electric push rod (17) is fixedly connected with a first fixing plate (18), and the upper surface of the first plate body (12) is fixedly connected with a first placing plate (19).
3. The detecting device of a sensor according to claim 1, wherein: the falling detection mechanism (20) further comprises a first groove (29), and the first groove (29) is formed in the upper surface of the second placing plate (21).
4. The detecting device of a sensor according to claim 1, wherein: waterproof detection mechanism (30) still include drain pipe (38), the one end of drain pipe (38) communicate in one side of water tank (31), valve (39) are installed to the lateral wall of drain pipe (38).
5. The detecting device of a sensor according to claim 1, wherein: fixed establishment (40) include the second plate body (41), second plate body (41) fixed connection in one side of framework (26), threaded through-hole (42) have been seted up to the rear surface of second plate body (41), the inside wall threaded connection of threaded through-hole (42) has threaded rod (43), the one end fixedly connected with knob (44) of threaded rod (43).
6. The detecting device for the sensor according to claim 5, wherein: the fixing mechanism (40) further comprises a rubber pad (45), and the rubber pad (45) is adhered to the front surface of the second fixing plate (23).
7. The detecting device of a sensor according to claim 1, wherein: the rear surface of the shell (11) is hinged with two door bodies (5), and the rear surface of each door body (5) is fixedly connected with a handle (6).
8. The detecting device of a sensor according to claim 1, wherein: the rear surface of the water tank (31) is provided with a through groove (7), the inner side wall of the through groove (7) is fixedly connected with a third plate body (8), and the front surface of the second placing plate (21) is provided with a second groove (9).
9. A test system for a sensor, characterized in that it is used to implement the detection device of the sensor according to any one of claims 1 to 8, the system comprising: the electric control end of the hydraulic cylinder (13) is electrically connected with the control output end of the PLC (15), the signal output end of the test sensor is connected with the signal input end of the PLC (15), and the signal output end of the PLC (15) is connected with the signal input end of the display (16).
10. A system for testing a sensor according to claim 9, wherein: the electric control end of the first electric push rod (17), the electric control end of the second electric push rod (27) and the electric control end of the water pump (32) are electrically connected with the control output end of the PLC (15).
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| CN202110409279.9A CN113108986A (en) | 2021-04-16 | 2021-04-16 | Detection device and test system of sensor |
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| CN113776573A (en) * | 2021-08-02 | 2021-12-10 | 江苏七维工控科技有限公司 | Method for detecting multiple properties of patterned graphite for sensor |
| CN114739584A (en) * | 2022-05-12 | 2022-07-12 | 武汉飞恩微电子有限公司 | Waterproof test equipment is used in production of pressure sensing chip |
| CN116952456A (en) * | 2023-08-09 | 2023-10-27 | 浙江中电自控科技有限公司 | Monocrystalline silicon pressure sensor performance detection device |
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| CN212621935U (en) * | 2020-05-28 | 2021-02-26 | 重庆福瑞和人防防护设备检测有限公司 | Digital display pressure tester |
| CN112484884A (en) * | 2020-10-26 | 2021-03-12 | 温州沿笙信息科技有限公司 | Explosion-proof temperature sensing probe tester |
| CN112577636A (en) * | 2020-12-03 | 2021-03-30 | 句容市双诚电子有限公司 | Temperature sensor test fixture |
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| CN113776573A (en) * | 2021-08-02 | 2021-12-10 | 江苏七维工控科技有限公司 | Method for detecting multiple properties of patterned graphite for sensor |
| CN114739584A (en) * | 2022-05-12 | 2022-07-12 | 武汉飞恩微电子有限公司 | Waterproof test equipment is used in production of pressure sensing chip |
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