A timing determination test bench device for sensor verification

Abstract

The present invention provides a timing determination test bench device for sensor verification, including a first robotic arm, a second robotic arm, an oil tank, a heating incubator, and a control cabinet arranged on a workbench; the first robotic arm includes a first main rod, a first sub-rod, a fixing structure, a travel switch fixing bracket, a travel switch, and a sensor fixing bracket. The first main rod is fixed on a first base, and the first sub-rod is installed at the upper end of the first main rod through the fixing structure; when the motor drives the first sub-rod to rotate and touch the travel switch, the temperature sensor to be measured on the first sub-rod just enters the liquid level of the oil tank; the second robotic arm includes a second main rod, a second sub-rod, an adjusting nut, a photoelectric switch, a sensor traction rope, a glass tube fixing bracket, and a glass tube; the motor, the travel switch, the photoelectric switch, and the temperature sensor to be measured are all electrically connected to the control cabinet. The present invention solves the problem of instantaneous time determination when the temperature sensor enters the specified experimental conditions.

Description

Technical Field

[0001] The present invention belongs to the technical field of test benches, and particularly relates to a timing judgment test bench device for sensor verification. Background Art

[0002] The fire alarm system is of top priority for safety and timely rescue after a fire. The fire alarm system generally consists of a sensing module, a linkage module, an execution module, an alarm module, etc. The performance indicators of each module in the fire alarm system directly affect the safety and reliability of the system. As an important part of the sensing module in the fire alarm system, the temperature sensor is the starting link for the system to sense a fire. Therefore, it is very necessary to verify the sensitivity of the temperature sensor.

[0003] In the sensitivity verification experiments of some military or civilian temperature sensors, the sensitivity verification of the temperature sensor from room temperature to a specified temperature condition is involved. For example, when the temperature sensor is transferred from a room temperature air environment not higher than 60°C to an air environment at 200°C, the instantaneous output voltage within 1S is not less than 22mV; the general experimental conditions for verification include an oil bath, a heating incubator, flame wrapping, etc. However, the instantaneous time determination of putting the temperature sensor into the specified experimental conditions is a thorny problem. After searching through relevant domestic and foreign materials, no device for determining the action time of the temperature sensor entering a specific temperature condition has been found. Summary of the Invention

[0004] In view of this, the present invention aims to propose a timing judgment robotic arm for sensor verification. Two robotic arms cooperate with an external control cabinet to achieve the timing judgment of the temperature sensor entering the specified temperature condition by collecting the output signals of the travel switch and the photoelectric switch; solving the problem of the instantaneous time determination of the temperature sensor entering the specified experimental conditions.

[0005] To achieve the above object, the technical solution of the present invention is realized as follows:

[0006] A timing judgment test bench device for sensor verification, comprising a robotic arm one, a robotic arm two, an oil bath, a heating incubator and a control cabinet arranged on a workbench;

[0007] The robotic arm 1 includes a first main rod, a first auxiliary rod, a fixing structure, a travel switch fixing bracket, a travel switch, and a sensor fixing bracket. The first main rod is fixed on the first base. The first auxiliary rod is installed at the upper end of the first main rod through the fixing structure. The fixing structure is internally provided with a motor. The output shaft of the motor is connected to the first auxiliary rod. When the output shaft of the motor rotates, it drives the first auxiliary rod to rotate. The sensor fixing bracket is fixed at the very front end of the first auxiliary rod. The temperature sensor to be measured is installed at the very front end of the sensor fixing bracket. One end of the travel switch fixing bracket is sleeved on the first main rod, and the travel switch fixing bracket is arranged below the first auxiliary rod. A travel switch is installed at the other end of the travel switch fixing bracket. The oil tank is arranged below the sensor fixing bracket. When the motor drives the first auxiliary rod to rotate and touch the travel switch, the temperature sensor to be measured on the first auxiliary rod just enters the liquid level of the oil tank.

[0008] The robotic arm 2 includes a second main rod, a second auxiliary rod, an adjusting nut, a photoelectric switch, a sensor traction rope, a glass tube fixing bracket, and a glass tube. The second main rod is fixed on the second base. The second auxiliary rod is installed on the second main rod through the adjusting nut. One end of the sensor traction rope is fixed to the very front end of the second auxiliary rod through a sensor fixing nut. The other end of the sensor traction rope is connected to the temperature sensor to be measured. One end of the glass tube fixing bracket is sleeved on the second main rod. The glass tube fixing bracket is located below the second auxiliary rod. The glass tube is installed at the other end of the glass tube fixing bracket. The lower end of the glass tube is directly opposite to the opening of the heating incubator for passing the temperature sensor to be measured. The photoelectric switch is installed on the upper surface of the heating incubator and is arranged on one side of the opening of the heating incubator for passing the temperature sensor to be measured. When not working, the sensor traction rope is wound around the second auxiliary rod, so that the temperature sensor to be measured is suspended inside the glass tube. When working, the sensor traction rope is released, and the temperature sensor to be measured enters the heating incubator from the lower end of the glass tube.

[0009] The motor, travel switch, photoelectric switch, and temperature sensor to be measured are all electrically connected to the control cabinet.

[0010] Further, the sensor fixing bracket is provided with a fixing bracket fixing groove and a sensor fixing groove. The temperature sensor to be measured is installed on the sensor fixing groove and is fixedly connected to the very front end of the first auxiliary rod through the fixing bracket fixing groove.

[0011] Further, the travel switch fixing bracket is provided with a travel switch fixing groove and a first bracket fixing ring. The travel switch is installed on the travel switch fixing groove. The first bracket fixing ring is sleeved on the first main rod and fixed by a nut.

[0012] Further, a second bracket fixing ring and a loop fastener fixing groove are provided on the glass tube fixing bracket. A loop fastener is installed on the loop fastener fixing groove. The glass tube is installed inside the loop fastener. The second bracket fixing ring is sleeved on the second main rod and fixed by a nut.

[0013] Further, the sensor fixing bracket is of an L-shaped structure. A sensor fixing groove is opened on the long side, and a fixing bracket fixing groove is opened on the short side.

[0014] Further, the travel switch fixing bracket is of an L-shaped structure. A travel switch fixing groove is opened on the short side, and a first bracket fixing ring is provided at one end of the long side.

[0015] Further, the glass tube fixing bracket is of an L-shaped structure. A loop fastener fixing groove is opened on the short side, and a second bracket fixing ring is provided at one end of the long side.

[0016] Further, the fixing structure includes a fixing base. The motor is installed inside the fixing base. The output shaft of the motor passes through the fixing base and is connected to the first sub-rod. The mounting rod on the fixing base passes through the first main rod and is locked and positioned by a nut in cooperation.

[0017] Further, a long hole is opened on the second main rod. One end of the second sub-rod passes through the long hole of the second main rod. The adjusting nut passes through the corresponding holes on the second sub-rod and the second main rod to realize the connection and positioning of the second sub-rod and the second main rod.

[0018] Further, both the workbench and the heating incubator are made of metal. The first base includes a first vertical magnetic base and a first magnetic switch. When the first magnetic switch is turned on, the first vertical magnetic base adsorbs on the upper surface of the heating incubator; the second base includes a second vertical magnetic base and a second magnetic switch. When the second magnetic switch is turned on, the second vertical magnetic base adsorbs on the workbench.

[0019] Compared with the prior art, the timing judgment robotic arm for sensor verification of the present invention has the following advantages:

[0020] 1. The first robotic arm is used for verifying the sensitivity of the temperature sensor under the experimental conditions of the oil bath and the flame wrapping, and the second robotic arm is used for verifying the sensitivity of the temperature sensor under the experimental conditions of the heating incubator.

[0021] 2. The robotic arm 1 of the present application adjusts the height of the travel switch and the height of the oil level in the oil tank, so that when the first auxiliary rod reaches the position of the travel switch, the temperature sensor to be measured just enters the oil tank. The control cabinet determines that the temperature sensor enters the specified temperature environment by detecting the electrical signal of the travel switch, and starts timing. The alarm signal of the fire alarm system or the set time is used as the timing stop signal. In this way, the action time of the temperature sensor to be measured under the specified temperature conditions can be accurately measured, and thus the sensitivity of the temperature sensor is measured; the robotic arm 2 adjusts the height of the glass tube so that it is on the same vertical line as the upper opening of the heating incubator. The photoelectric switch is placed closely against the heating incubator to ensure that the infrared light of the photoelectric switch passes through the center of the end face projection of the glass tube. The sensor is towed by a heat-resistant rope on the sensor fixing nut to make a free fall in the glass tube. When the temperature sensor enters the heating incubator through the photoelectric switch, the external control cabinet determines that the temperature sensor enters the specified temperature environment by detecting the photoelectric signal, and starts timing. The alarm signal of the fire alarm system or the set time is used as the timing stop signal. In this way, the action time of the temperature sensor under the specified temperature conditions can be accurately measured, and thus the sensitivity of the temperature sensor is measured. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings forming a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments and descriptions thereof of the present invention are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0023] Figure 1 is a schematic structural diagram of a timing determination test bench device for sensor verification according to an embodiment of the present invention;

[0024] Figure 2 is a front view of a sensor fixing bracket according to an embodiment of the present invention;

[0025] Figure 3 is a top view of the sensor fixing bracket;

[0026] Figure 4 is a side view of the sensor fixing bracket;

[0027] Figure 5 is a front view of a travel switch fixing bracket according to an embodiment of the present invention;

[0028] Figure 6 is a top view of the travel switch fixing bracket;

[0029] Figure 7 is a side view of the travel switch fixing bracket;

[0030] Figure 8 is a front view of a glass tube fixing bracket according to an embodiment of the present invention;

[0031] Figure 9 It is the top view of the glass tube fixing bracket;

[0032] Figure 10 It is the side view of the glass tube fixing bracket;

[0033] Figure 11 It is the schematic diagram of the fixing structure.

[0034] Explanation of the reference numerals:

[0035] 1. First magnetic switch; 2. First vertical magnetic base; 3. First main rod; 4. Travel switch fixing bracket; 5. Fixing structure; 6. First sub-rod; 7. Sensor fixing bracket; 8. Temperature sensor to be measured; 9. Travel switch; 10. Oil tank; 11. Second magnetic switch; 12. Second vertical magnetic base; 13. Second main rod; 14. Glass tube fixing bracket; 15. Adjusting nut; 16. Second sub-rod; 17. Sensor traction rope; 18. Ring buckle; 19. Glass tube; 20. Photoelectric switch; 21. Heating incubator; 22. Fixing bracket fixing groove; 23. Sensor fixing groove; 24. Travel switch fixing groove; 25. First bracket fixing ring; 26. Ring buckle fixing groove; 27. Second bracket fixing ring; 28. Motor; 29. Control cabinet. Detailed implementation manners

[0036] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0037] The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0038] As Figures 1-11 shown, a timing judgment robotic arm for sensor verification includes robotic arm one, robotic arm two, oil tank 10, heating incubator 21 and control cabinet 29 arranged on the workbench;

[0039] The described first robotic arm includes a first main rod 3, a first auxiliary rod 6, a fixing structure 5, a travel switch fixing bracket 4, a travel switch 9, and a sensor fixing bracket 7. The first main rod 3 is fixed on the first base. The first auxiliary rod 6 is installed at the upper end of the first main rod through the fixing structure 5. The fixing structure 5 is internally provided with a motor 28. The output shaft of the motor 28 is connected to the first auxiliary rod 6. When the output shaft of the motor 28 rotates, it drives the first auxiliary rod 6 to rotate. The sensor fixing bracket 7 is fixed at the forefront of the first auxiliary rod 6. A temperature sensor 8 to be measured is installed at the forefront of the sensor fixing bracket 7. One end of the travel switch fixing bracket 4 is sleeved on the first main rod 3, and the travel switch fixing bracket 4 is arranged below the first auxiliary rod 6. A travel switch 9 is installed at the other end of the travel switch fixing bracket 4. The oil tank 10 is arranged below the sensor fixing bracket 7. By adjusting the height of the travel switch fixing bracket 4 and the liquid level height in the oil tank 10, when the first auxiliary rod 6 rotates to touch the travel switch 9, the temperature sensor 8 to be measured on the first auxiliary rod 6 just enters the oil tank 10. That is, the height of the travel switch fixing bracket 4 and the liquid level height in the oil tank 10 satisfy that when the motor drives the first auxiliary rod 6 to rotate and touch the travel switch 9, the temperature sensor 8 to be measured on the first auxiliary rod 6 just enters the liquid level of the oil tank 10.

[0040] The second robotic arm includes a second main rod 13, a second auxiliary rod 16, an adjusting nut 15, a photoelectric switch 20, a sensor towing rope 17, a glass tube fixing bracket 14, and a glass tube 19. The second main rod 13 is fixed on the second base. The second auxiliary rod 16 is installed on the second main rod 13 through the adjusting nut 15. One end of the sensor towing rope 17 is fixed to the foremost end of the second auxiliary rod 16 through a sensor fixing nut, and the other end of the sensor towing rope 17 is connected to the temperature sensor 8 to be measured. One end of the glass tube fixing bracket 14 is sleeved on the second main rod 13, and the glass tube fixing bracket 14 is located below the second auxiliary rod 16. The glass tube 19 is installed at the other end of the glass tube fixing bracket 14. The lower end of the glass tube 19 faces the opening of the heating incubator 21 for passing the temperature sensor 8 to be measured. The photoelectric switch 20 is installed on the upper surface of the heating incubator 21 and is arranged on one side of the opening of the heating incubator 21 for passing the temperature sensor 8 to be measured. When not working, the sensor towing rope 17 is wound around the second auxiliary rod 16, so that the temperature sensor 8 to be measured is suspended inside the glass tube 19. When working, the sensor towing rope 17 is released, and the temperature sensor 8 to be measured enters the heating incubator 21 from the lower end of the glass tube 19. The motor 28, the travel switch 9, the photoelectric switch 20, and the temperature sensor 8 to be measured are all electrically connected to the control cabinet 29. The control cabinet 29 is used to control the start and stop of the motor 28, control the rotation angle of the motor through an external control cabinet 29 to drive the first auxiliary rod to move, receive the signals of the travel switch 9 and the photoelectric switch 20, and receive the signal of the temperature sensor 8 to be measured. A fire alarm system alarm and / or a timer are provided in the control cabinet.

[0041] The sensor fixing bracket 7 is provided with a fixing bracket fixing groove 22 and a sensor fixing groove 23. The temperature sensor 8 to be measured is installed on the sensor fixing groove 23 and is fixedly connected to the foremost end of the first auxiliary rod 6 through the fixing bracket fixing groove 22. The sensor fixing bracket 7 is of an L-shaped structure, with the sensor fixing groove 23 opened on the long side and the fixing bracket fixing groove 22 opened on the short side.

[0042] The travel switch fixing bracket 4 is provided with a travel switch fixing groove 24 and a first bracket fixing ring 25. The travel switch 9 is installed on the travel switch fixing groove 24, and the first bracket fixing ring 25 is sleeved on the first main rod 3 and fixed through a nut. The travel switch fixing bracket 4 is of an L-shaped structure, with the travel switch fixing groove 24 opened on the short side and the first bracket fixing ring 25 arranged at one end of the long side. The height of the travel switch fixing bracket on the first main rod is adjusted by adjusting the first bracket fixing ring 25.

[0043] The glass tube fixing bracket 14 is provided with a second bracket fixing ring 27 and a loop buckle fixing groove 26. The loop buckle 18 is installed on the loop buckle fixing groove 26. The glass tube 19 is installed inside the loop buckle 18. The second bracket fixing ring 27 is sleeved on the second main rod 13 and fixed by a nut. The glass tube fixing bracket 14 is of an L-shaped structure. The loop buckle fixing groove 26 is opened on the short side, and the second bracket fixing ring 27 is arranged at one end of the long side.

[0044] The fixing structure 5 includes a fixing base. The motor 28 is installed inside the fixing base. The output shaft of the motor 28 passes through the fixing base and is connected to the first auxiliary rod 6. The mounting rod on the fixing base passes through the first main rod 3 and is locked and positioned by a nut in cooperation. A long hole is opened on the second main rod 13. One end of the second auxiliary rod 16 passes through the long hole on the second main rod 13. The adjusting nut 15 passes through the corresponding holes on the second auxiliary rod 16 and the second main rod 13 to realize the connection and positioning of the second auxiliary rod 16 and the second main rod 13; the angle of the second auxiliary rod 16 is adjusted by adjusting the adjusting nut 15.

[0045] Both the workbench and the heating incubator 21 are made of metal. The first base includes a first vertical magnetic base 2 and a first magnetic switch 1. When the first magnetic switch 1 is turned on, the first vertical magnetic base 2 adsorbs on the upper surface of the heating incubator 21; the second base includes a second vertical magnetic base 12 and a second magnetic switch 11. When the second magnetic switch 11 is turned on, the second vertical magnetic base 12 adsorbs on the workbench. The magnetic switches are marked with positive and negative, and the fixed position of the robotic arm is adjusted by rotating the magnetic switch. Both the first vertical magnetic base 2 and the second vertical magnetic base 12 are magnetic bases.

[0046] The glass tube is made of high-temperature resistant material. The temperature sensor to be measured makes a free fall through the glass tube, ensuring the accuracy of the free fall landing point of the sensor.

[0047] A specific embodiment is given below: The performance of the temperature sensor to be measured is tested by the robotic arm device of the present application. The specified temperature experimental condition is an oil bath at 300°C. The requirement is set to transfer the temperature sensor to be measured from a room temperature air environment not higher than 60°C to an environment at 300°C, and the instantaneous output voltage within 1.5 s is not less than 60 mV. During use, the travel switch, the motor, and the temperature sensor to be measured are connected to an external control cabinet. The temperature sensor to be measured is fixed on the sensor fixing bracket. By adjusting the travel switch fixing bracket 4 and the liquid level height in the oil bath, when the first secondary rod reaches the travel switch, the temperature sensor to be measured just enters the oil bath. During the experiment, the motor is driven by the external control cabinet to drive the first secondary rod to rotate counterclockwise. When the first secondary rod reaches the travel switch, the control cabinet receives the electrical signal output by the travel switch, the control cabinet starts timing, and the display interface real-time displays the voltage change of the temperature sensor within 1.5 seconds. When the 1.5-second timing is completed, a voltage change curve is drawn on the display interface, and the maximum voltage value output by the temperature sensor within 1.5 seconds is displayed, so as to achieve the purpose of verifying the sensitivity of the sensor;

[0048] The specified temperature experimental condition is a heating incubator at 200°C. The requirement is set to transfer the temperature sensor from a room temperature air environment not higher than 60°C to an air environment at 200°C, and the instantaneous output voltage within 1 s is not less than 22 mV. During use, the photoelectric switch and the temperature sensor are connected to an external control cabinet. The temperature sensor is fixed on the front end of the second secondary rod through a sensor traction rope. The photoelectric switch is fixed tightly against the top of the heating incubator, so that the infrared signal passes through the center of the projection of the glass tube end face. During the experiment, the position of the second robotic arm is adjusted so that the glass tube and the upper opening of the heating incubator are on the same vertical line. The temperature sensor is freely dropped from above the glass tube through a heat-resistant rope. When the temperature sensor passes through the photoelectric switch, the external control cabinet receives the electrical signal of the photoelectric switch, the control cabinet starts timing, and the display interface real-time displays the voltage change of the temperature sensor within 1 second. When the 1-second timing is completed, a voltage change curve is drawn on the display interface, and the maximum voltage value output by the temperature sensor within 1 second is displayed, so as to achieve the purpose of verifying the sensitivity of the temperature sensor.

[0049] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A timing determination test bench device for sensor verification, characterized in that: it includes a first robotic arm, a second robotic arm, an oil tank (10), a heating incubator (21) and a control cabinet (29) arranged on a workbench; The first robotic arm includes a first main rod (3), a first sub-rod (6), a fixing structure (5), a travel switch fixing bracket (4), a travel switch (9) and a sensor fixing bracket (7). The first main rod (3) is fixed on a first base. The first sub-rod (6) is installed at the upper end of the first main rod through the fixing structure (5). The fixing structure (5) is internally provided with a motor (28). The output shaft of the motor (28) is connected to the first sub-rod (6). When the output shaft of the motor (28) rotates, it drives the first sub-rod (6) to rotate. The sensor fixing bracket (7) is fixed at the forefront of the first sub-rod (6). A temperature sensor to be measured (8) is installed at the forefront of the sensor fixing bracket (7). One end of the travel switch fixing bracket (4) is sleeved on the first main rod (3), and the travel switch fixing bracket (4) is arranged below the first sub-rod (6). A travel switch (9) is installed at the other end of the travel switch fixing bracket (4). The oil tank (10) is arranged below the sensor fixing bracket (7). When the motor drives the first sub-rod (6) to rotate and touch the travel switch (9), the temperature sensor to be measured (8) on the first sub-rod (6) just enters the liquid level of the oil tank (10); The second robotic arm includes a second main rod (13), a second sub-rod (16), an adjusting nut (15), a photoelectric switch (20), a sensor traction rope (17), a glass tube fixing bracket (14) and a glass tube (19). The second main rod (13) is fixed on a second base. The second sub-rod (16) is installed on the second main rod (13) through the adjusting nut (15). One end of the sensor traction rope (17) is fixed at the forefront of the second sub-rod (16) through a sensor fixing nut. The other end of the sensor traction rope (17) is connected to the temperature sensor to be measured (8). One end of the glass tube fixing bracket (14) is sleeved on the second main rod (13). The glass tube fixing bracket (14) is located below the second sub-rod (16). The glass tube (19) is installed at the other end of the glass tube fixing bracket (14). The lower end of the glass tube (19) is directly opposite to the opening of the heating incubator (21) for passing the temperature sensor to be measured (8). The photoelectric switch (20) is installed on the upper surface of the heating incubator (21) and is arranged on one side of the opening of the heating incubator (21) for passing the temperature sensor to be measured (8). When not working, the sensor traction rope (17) is wound around the second sub-rod (16) so that the temperature sensor to be measured (8) is suspended inside the glass tube (19). When working, the sensor traction rope (17) is released, and the temperature sensor to be measured (8) enters the heating incubator (21) from the lower end of the glass tube (19); The described motor (28), travel switch (9), photoelectric switch (20), and temperature sensor to be measured (8) are all electrically connected to the control cabinet (29); The sensor fixing bracket (7) is provided with a fixing bracket fixing groove (22) and a sensor fixing groove (23). The temperature sensor to be measured (8) is installed on the sensor fixing groove (23) and fixedly connected to the foremost end of the first secondary rod (6) through the fixing bracket fixing groove (22); The travel switch fixing bracket (4) is provided with a travel switch fixing groove (24) and a first bracket fixing ring (25). The travel switch (9) is installed on the travel switch fixing groove (24). The first bracket fixing ring (25) is sleeved on the first main rod (3) and fixed by a nut.

2. The timing determination test bench device for sensor verification according to claim 1, characterized in that: The glass tube fixing bracket (14) is provided with a second bracket fixing ring (27) and a ring buckle fixing groove (26). The ring buckle (18) is installed on the ring buckle fixing groove (26). The glass tube (19) is installed inside the ring buckle (18). The second bracket fixing ring (27) is sleeved on the second main rod (13) and fixed by a nut.

3. The timing determination test bench device for sensor verification according to claim 1, characterized in that: The sensor fixing bracket (7) is of an L-shaped structure. The sensor fixing groove (23) is opened on the long side, and the fixing bracket fixing groove (22) is opened on the short side.

4. The timing determination test bench device for sensor verification according to claim 1, characterized in that: The travel switch fixing bracket (4) is of an L-shaped structure. The travel switch fixing groove (24) is opened on the short side, and the first bracket fixing ring (25) is arranged at one end of the long side.

5. The timing determination test bench device for sensor verification according to claim 2, characterized in that: The glass tube fixing bracket (14) is of an L-shaped structure. The ring buckle fixing groove (26) is opened on the short side, and the second bracket fixing ring (27) is arranged at one end of the long side.

6. The timing determination test bench device for sensor verification according to any one of claims 1-5, characterized in that: The fixing structure (5) includes a fixing seat. The motor (28) is installed inside the fixing seat. The output shaft of the motor (28) passes through the fixing seat and is connected to the first secondary rod (6). The mounting rod on the fixing seat passes through the first main rod (3), and is locked and positioned with a nut on the mounting rod.

7. The timing determination test bench device for sensor verification according to claim 6, characterized in that: A long hole is opened on the second main rod (13). One end of the second secondary rod (16) passes through the long hole of the second main rod (13). The adjusting nut (15) passes through the corresponding holes on the second secondary rod (16) and the second main rod (13) to realize the connection and positioning of the second secondary rod (16) and the second main rod (13).

8. The timing determination test bench device for sensor verification according to claim 7, characterized in that: Both the workbench and the heating incubator (21) are made of metal. The first base includes a first vertical magnetic base (2) and a first magnetic switch (1). When the first magnetic switch (1) is turned on, the first vertical magnetic base (2) is adsorbed on the upper surface of the heating incubator (21). The second base includes a second vertical magnetic base (12) and a second magnetic switch (11). When the second magnetic switch (11) is turned on, the second vertical magnetic base (12) is adsorbed on the workbench.

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