CN112683319A - Sensor calibration device and calibration method thereof - Google Patents
Sensor calibration device and calibration method thereof Download PDFInfo
- Publication number
- CN112683319A CN112683319A CN202011459444.3A CN202011459444A CN112683319A CN 112683319 A CN112683319 A CN 112683319A CN 202011459444 A CN202011459444 A CN 202011459444A CN 112683319 A CN112683319 A CN 112683319A
- Authority
- CN
- China
- Prior art keywords
- pipe
- groups
- sensor
- clamping
- box body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Abstract
The invention discloses a sensor calibration device and a calibration method thereof, and belongs to the field of sensor calibration equipment. A sensor calibration device comprises a box body, wherein a water tank is arranged on the side wall of the box body, a circulating pipe is arranged in the box body, a water guide pipe is connected between the water tank and the circulating pipe, a water pump is arranged on the water guide pipe, a U-shaped pipe is arranged on the circulating pipe, scales are symmetrically arranged on the side wall of the U-shaped pipe, a sealing pipe is symmetrically arranged at the upper end of the U-shaped pipe, and a sliding block is slidably connected in the sealing pipe; according to the invention, whether the pressures born by the two groups of pressure sensors are the same or not is judged conveniently through the arrangement of the U-shaped pipe and the floating block, the arrangement of the extrusion pipe and the push rod is convenient for finely adjusting the pressures born by the two groups of pressure sensors, the arrangement of the rotating shaft, the threaded rod and the fixed block is convenient for simultaneously pressurizing the two groups of pressure sensors, the arrangement of the clamping mechanism is convenient for clamping and fixing the pressure sensors, and the arrangement of the water tank, the water guide pipe and the water pump is convenient for further confirming the calibration result.
Description
Technical Field
The invention relates to the technical field of sensor calibration equipment, in particular to a sensor calibration device and a calibration method thereof.
Background
The sensor is a detection device, can feel the measured information, and can convert the felt information into an electric signal or other information output in a required form according to a certain rule so as to meet the requirements of information transmission, processing, storage, display, recording, control and the like, and the sensor is characterized by comprising: the pressure sensor is one of sensors widely used, is easy to generate data errors after being put into use for a period of time, and needs to be calibrated regularly.
The single-channel measurement is carried out by using a manual method in the measurement process at the present stage, the pressure interface of the pressure sensor is connected with the standard pressure gauge, the circuit interface is connected with the power supply and the digital meter, the pressure value of the standard pressure gauge is manually adjusted, the output signal value of the pressure sensor on the digital meter is manually recorded, and finally the linear equation and the indication value error of the pressure sensor to be calibrated are calculated by the least square method.
Disclosure of Invention
The invention aims to solve the problems of complicated calibration steps and inaccurate calibration results in the prior art, and provides a sensor calibration device and a calibration method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
a sensor calibration device comprises a box body, wherein a water tank is arranged on the side wall of the box body, a circulating pipe is arranged in the box body, a water guide pipe is connected between the water tank and the circulating pipe, a water pump is arranged on the water guide pipe, a U-shaped pipe is arranged on the circulating pipe, scales are symmetrically arranged on the side wall of the U-shaped pipe, sealing pipes are symmetrically arranged at the upper end of the U-shaped pipe, a sliding block is connected in the sealing pipe in a sliding manner, a detection groove is formed in the sliding block, a clamping mechanism is arranged in the detection groove, floating blocks are symmetrically arranged in the U-shaped pipe, a rotating shaft is rotationally connected in the box body, threaded rods are symmetrically arranged on the rotating shaft, the thread directions of the two groups of threaded rods are opposite, a limiting rod is arranged in the box body, fixed blocks are, the push rod is matched with the position of the detection groove, a turntable is arranged on the push rod, a rotating handle is arranged on the rotating shaft, and the rotating handle is rotatably connected to the side wall of the box body.
Preferably, fixture includes the centre gripping groove, sliding connection has the supporting rod in the centre gripping groove, the first spring of one end fixedly connected with that the supporting rod is located the centre gripping inslot, the one end fixed connection that the supporting rod was kept away from to first spring is at the inner wall in centre gripping groove, the one end fixedly connected with grip block that first spring was kept away from to the supporting rod.
Preferably, the U-shaped pipe is internally and symmetrically and fixedly connected with limiting blocks.
Preferably, the clamping rod is fixedly connected with a traction rope, the traction rope penetrates through the sliding block, and one end, far away from the clamping rod, of the traction rope is fixedly connected with a lifting buckle.
Preferably, temperature control pipes are symmetrically arranged on the circulating pipe, two groups of temperature control pipes are respectively matched with the two groups of sliding blocks, and a heating mechanism is arranged on the circulating pipe.
Preferably, the heating mechanism comprises a heating box and a heating wire, the heating wire is positioned in the heating box, and the circulating pipe penetrates through the heating box.
Preferably, thermometers are symmetrically arranged in the box body and are respectively matched with the slide blocks in position.
Preferably, the bottom half is equipped with the shock attenuation groove, sliding connection has the bracing piece in the shock attenuation groove, the bracing piece is located the one end fixedly connected with second spring of shock attenuation inslot, the one end fixed connection that the bracing piece was kept away from to the second spring is at the inner wall of shock attenuation groove, the one end fixedly connected with backup pad of second spring is kept away from to the bracing piece.
Preferably, the box lateral wall symmetry is equipped with first transparent window, first transparent window and thermometer position phase-match, the box lateral wall is equipped with the second transparent window, second transparent window and U type pipe position phase-match, box lateral wall symmetry hinge connection has the chamber door, chamber door position and slider position phase-match, it is connected with the draw-in groove to rotate on the chamber door, box lateral wall fixedly connected with buckle, draw-in groove and buckle phase-match.
A calibration method of a sensor comprises the following specific steps:
s1, leading water in the water tank into the circulating pipe through the water guide pipe and the water pump by workers to enable the water in the U-shaped pipe to drive the floating block to rise to a certain height;
s2, placing a standard pressure sensor and a pressure sensor to be checked in the two groups of detection grooves respectively, and clamping and fixing the two groups of pressure sensors through a clamping mechanism;
s3, rotating a rotating handle to enable a rotating shaft to rotate, enabling two groups of extrusion pipes to respectively pressurize a sensor with calibration and a standard sensor through two groups of threaded rods, meanwhile, pushing a sliding block to slide in a sealing pipe by the extrusion pipes, pressing air in the sealing pipe into a U-shaped pipe, and when the scales corresponding to two groups of floating blocks are consistent and pressure data uploaded by the two groups of sensors are the same, indicating that the sensor to be calibrated is accurate in reading and does not need to be calibrated;
s4, when the corresponding scales of the two groups of floating blocks are consistent, but the readings of the two groups of pressure sensors are different, the reading of the pressure sensor to be detected needs to be adjusted to be consistent with the reading of the standard pressure sensor;
s5, when the scales corresponding to the two groups of floating blocks are not consistent, one of the turntables is rotated to enable the push rod to further extrude the corresponding pressure sensor, so that the two groups of floating blocks are adjusted to the same position, and the reading of the pressure sensor with calibration is adjusted to be consistent with the reading of a standard pressure sensor;
s6, after the first calibration is completed, water is further sent into the circulating pipe through the water tank, the water guide pipe and the water pump, so that the liquid level in the U-shaped pipe drives the floating block to rise, whether the reading dynamic changes of the pressure sensor to be calibrated and the standard pressure sensor are consistent or not is observed, and the calibration result is further confirmed.
Compared with the prior art, the invention provides a sensor calibration device, which has the following beneficial effects:
1. the sensor calibration device is characterized in that a worker guides water in a water tank into a circulating pipe through a water guide pipe and a water pump to enable a water in a U-shaped pipe to drive a floating block to rise to a certain height, then a standard pressure sensor and a pressure sensor to be calibrated are respectively placed in two groups of detection grooves, the two groups of pressure sensors are clamped and fixed through a clamping mechanism, a rotating handle is rotated to enable a rotating shaft to rotate, the rotating shaft respectively drives two groups of fixing blocks to move close to the adjacent detection grooves through two groups of threaded rods, two groups of extrusion pipes respectively pressurize the sensor to be calibrated and the standard sensor, meanwhile, the extrusion pipes push a sliding block to slide in the sealing pipes to press air in the sealing pipes into the U-shaped pipe, when scales corresponding to the two groups of floating blocks are consistent and pressure data uploaded by the two groups of sensors are the same, the reading of the sensor to be calibrated is accurate, and, when the scales corresponding to the two groups of floating blocks are consistent, but the readings of the two groups of pressure sensors are different, the reading of the pressure sensor to be detected needs to be adjusted to be consistent with the reading of the standard pressure sensor, when the scales corresponding to the two groups of floating blocks are inconsistent, one of the turntables is rotated to further extrude the push rod to the corresponding pressure sensor, then the two groups of floating blocks are adjusted to the same position, the reading of the pressure sensor with calibration is adjusted to be consistent with the reading of the standard pressure sensor, after the first calibration is completed, water is further sent into the circulating pipe through the water tank, the water guide pipe and the water pump, the liquid level in the U-shaped pipe drives the floating blocks to ascend, whether the dynamic changes of the readings of the pressure sensor to be calibrated and the standard pressure sensor are consistent or not is observed, and then the calibration result is further.
2. This sensor calibrating device is convenient for carry out the centre gripping fixedly to the sensor that detects the inslot through the setting of supporting rod, first spring, grip block, has increased the precision of check result.
3. This sensor calibrating device is convenient for carry on spacingly to the kicking block through the setting of stopper.
4. This sensor calibrating device is convenient for pull the supporting rod through setting up of haulage rope, carrying and drawing the knot, and then is convenient for place, take out the sensor.
5. According to the sensor calibration device, the temperatures around the two groups of sliding blocks can be changed conveniently and simultaneously through the arrangement of the heating mechanism and the temperature control tube, the reading errors of the pressure sensor with calibration and the standard pressure sensor under different temperature environments can be observed conveniently, and then the pressure sensor to be calibrated is further adjusted.
6. This sensor calibrating device is convenient for control the temperature to the water in the circulating line through the setting of heating cabinet, heater strip.
7. This sensor calibrating device is convenient for observe whether temperature is unanimous around two sets of sliders through the setting of thermometer.
8. This sensor calibrating device is convenient for carry out the shock attenuation to the box through setting up of shock attenuation groove, second spring, increases the precision of calibration, is convenient for support the box through setting up of bracing piece, and the setting of backup pad is convenient for increase the support effect of bracing piece.
9. This sensor calibrating device is convenient for place, take out the sensor through the setting of chamber door, and the draw-in groove is convenient for fix chamber door and box with the setting of buckle, is convenient for observe the reading that the thermometer shows through first transparent window, is convenient for observe the scale that U type intraductal floating block aimed at through the second transparent window.
The device is characterized in that the arrangement of a U-shaped pipe and a floating block is convenient for judging whether the pressures borne by the two groups of pressure sensors are the same or not, the arrangement of an extrusion pipe and a push rod is convenient for finely adjusting the pressures borne by the two groups of pressure sensors, the arrangement of a rotating shaft, a threaded rod and a fixed block is convenient for simultaneously pressurizing the two groups of pressure sensors, the arrangement of a clamping mechanism is convenient for clamping and fixing the pressure sensors, and the arrangement of a water tank, a water guide pipe and a water pump is convenient for further confirming the calibration result.
Drawings
Fig. 1 is a schematic structural diagram of a sensor calibration device according to the present invention;
fig. 2 is a perspective view of a sensor calibration device according to the present invention;
FIG. 3 is an enlarged view of a portion A of FIG. 1 of a sensor calibration device according to the present invention;
FIG. 4 is an enlarged view of a portion B of FIG. 1 of a sensor calibration device according to the present invention;
fig. 5 is an enlarged view of a portion C in fig. 3 of a sensor calibration device according to the present invention.
In the figure: 1. a box body; 2. a water tank; 201. a water conduit; 202. a water pump; 3. a circulation pipe; 4. a U-shaped pipe; 401. floating blocks; 402. a limiting block; 5. a sealing tube; 501. a slider; 502. a detection tank; 6. a clamping groove; 601. a clamping rod; 602. a first spring; 603. a clamping plate; 604. a hauling rope; 605. lifting the pull button; 7. a temperature control tube; 8. a rotating shaft; 801. a threaded rod; 802. rotating the handle; 9. a fixed block; 901. extruding the tube; 902. a push rod; 10. a limiting rod; 11. a thermometer; 12. a heating box; 121. heating wires; 13. a damping groove; 131. a support bar; 132. a second spring; 133. a support plate; 14. a box door; 15. a first transparent window; 16. a second transparent window.
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.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example 1:
referring to fig. 1-5, a sensor calibration device comprises a box body 1, a water tank 2 is arranged on the side wall of the box body 1, a circulating pipe 3 is arranged in the box body 1, a water guide pipe 201 is connected between the water tank 2 and the circulating pipe 3, a water pump 202 is arranged on the water guide pipe 201, a U-shaped pipe 4 is arranged on the circulating pipe 3, scales are symmetrically arranged on the side wall of the U-shaped pipe 4, a sealing pipe 5 is symmetrically arranged at the upper end of the U-shaped pipe 4, a sliding block 501 is slidably connected in the sealing pipe 5, a detection groove 502 is arranged in the sliding block 501, a clamping mechanism is arranged in the detection groove 502, a floating block 401 is symmetrically arranged in the U-shaped pipe 4, a rotating shaft 8 is rotatably connected in the box body 1, threaded rods 801 are symmetrically arranged on the rotating shaft 8, the thread directions of two groups of threaded rods are, the extrusion pipe 901 is internally threaded with a push rod 902, the push rod 902 is matched with the detection groove 502 in position, the push rod 902 is provided with a turntable, the rotating shaft 8 is provided with a rotating handle 802, and the rotating handle 802 is rotatably connected to the side wall of the box body 1.
A worker guides water in a water tank 2 into a circulating pipe 3 through a water guide pipe 201 and a water pump 202 to enable a water in a U-shaped pipe to drive a floating block 401 to rise to a certain height, then a standard pressure sensor and a pressure sensor to be calibrated are respectively placed in two groups of detection grooves 502, the two groups of pressure sensors are clamped and fixed through a clamping mechanism, a rotating handle 802 is rotated to enable a rotating shaft 8 to rotate, the rotating shaft 8 respectively drives two groups of fixing blocks 9 to move close to the adjacent detection grooves 502 through two groups of threaded rods 801, two groups of extrusion pipes 901 respectively pressurize the sensors to be calibrated and the standard sensors, meanwhile, the extrusion pipes 901 push sliding blocks 501 to slide into a sealing pipe 5 to press air in the sealing pipe 5 into the U-shaped pipe 4, when scales corresponding to the two groups of floating blocks 401 are consistent and pressure data uploaded by the two groups of sensors are the same, the reading of the sensors to be calibrated is accurate, calibration is not needed, when the scales corresponding to the two groups of floating blocks 401 are consistent, but the readings of the two groups of pressure sensors are different, the reading of the pressure sensor to be detected needs to be adjusted to be consistent with the reading of the standard pressure sensor, when the scales corresponding to the two groups of floating blocks 401 are not consistent, one of the turntables is rotated to enable the push rod 902 to further extrude the corresponding pressure sensor, the two groups of floating blocks 401 are further adjusted to be at the same position, the reading of the pressure sensor with calibration is adjusted to be consistent with the reading of the standard pressure sensor, after the first calibration is finished, water is further fed into the circulating pipe 3 through the water tank 2, the water guide pipe 201 and the water pump 202, the liquid level in the U-shaped pipe 4 drives the floating blocks 401 to rise, whether the dynamic change of the reading of the pressure sensor to be calibrated is consistent with the dynamic change of the standard pressure sensor is observed, the calibration result, Whether the pressure that two sets of pressure sensor bore is convenient for judge by the setting of floating block 401 is the same, be convenient for finely tune the pressure that two sets of sensors bore through the setting of extrusion pipe 901, push rod 902, pivot 8, threaded rod 801, fixed block 9 set up be convenient for pressurize two sets of pressure sensor simultaneously, it is fixed to be convenient for carry out the centre gripping to pressure sensor through fixture's setting, water tank 2, aqueduct 201, water pump 202 set up be convenient for further confirm the calibration result.
Example 2:
referring to fig. 1, fig. 3, fig. 5, a sensor calibration apparatus, which is substantially the same as embodiment 1, further, the clamping mechanism includes a clamping groove 6, a clamping rod 601 is slidably connected in the clamping groove 6, a first spring 602 is fixedly connected to one end of the clamping rod 601 located in the clamping groove 6, one end of the first spring 602 far away from the clamping rod 601 is fixedly connected to the inner wall of the clamping groove 6, one end of the clamping rod 601 far away from the first spring 602 is fixedly connected to a clamping plate 603, the clamping rod 601, the first spring 602, and the clamping plate 603 are arranged to facilitate clamping and fixing the sensor in the detection groove 502, thereby increasing accuracy of the calibration result.
Example 3:
referring to fig. 1 and 4, a sensor calibration device is substantially the same as that in embodiment 1, and further, limiting blocks 402 are symmetrically and fixedly connected in the U-shaped tube 4, and the limiting blocks 402 are arranged to limit the floating block 401.
Example 4:
referring to fig. 1-5, a sensor calibration device is substantially the same as that of embodiment 1, and further, a pulling rope 604 is fixedly connected to the clamping rod 601, the pulling rope 604 passes through the sliding block 501, a pulling buckle 605 is fixedly connected to one end of the pulling rope 604 far away from the clamping rod 601, and the pulling rope 604 and the pulling buckle 605 are arranged to facilitate pulling the clamping rod 601, thereby facilitating placement and removal of the sensor.
Example 5:
referring to fig. 1 and 3, a sensor calibration device is substantially the same as that in embodiment 1, further, temperature control tubes 7 are symmetrically arranged on a circulation tube 3, the two sets of temperature control tubes 7 are respectively matched with the two sets of sliders 501, a heating mechanism is arranged on the circulation tube 3, the arrangement of the heating mechanism and the temperature control tubes 7 is convenient for simultaneously changing the temperature around the two sets of sliders 501, and is convenient for observing the reading errors of the pressure sensor with calibration and the standard pressure sensor under different temperature environments, and then further adjusting the pressure sensor to be calibrated.
Example 6:
referring to fig. 1, a sensor calibration device is substantially the same as that of embodiment 1, and further, the heating mechanism includes a heating box 12 and a heating wire 121, the heating wire 121 is located in the heating box 12, the circulating pipe 3 penetrates through the heating box 12, and the temperature of water in the circulating pipe 3 is conveniently controlled by the arrangement of the heating box 12 and the heating wire 121.
Example 7:
referring to fig. 1 and 2, a sensor calibration device is substantially the same as that of embodiment 1, and further, thermometers 11 are symmetrically arranged in the box 1, the thermometers 11 are respectively matched with the positions of the sliders 501, and the thermometers 11 are arranged to facilitate observation of whether the temperatures around the two sets of sliders 501 are the same.
Example 8:
referring to fig. 1 and 2, a sensor calibration device, which is substantially the same as that in embodiment 1, further, a damping groove 13 is formed in the bottom of the box body 1, a supporting rod 131 is slidably connected to the damping groove 13, one end of the supporting rod 131 located in the damping groove 13 is fixedly connected to a second spring 132, one end of the second spring 132 far away from the supporting rod 131 is fixedly connected to the inner wall of the damping groove 13, one end of the supporting rod 131 far away from the second spring 132 is fixedly connected to a supporting plate 133, the damping groove 13, the setting of the second spring 132 is convenient for damping the box body 1, the calibration accuracy is increased, the box body 1 is convenient to support through the setting of the supporting rod 131, and the supporting effect of the supporting rod 131 is convenient to increase through.
Example 9:
referring to fig. 1 and 2, a sensor calibration device, the same as embodiment 1, further, a first transparent window 15 is symmetrically arranged on a side wall of a box body 1, the first transparent window 15 is matched with a thermometer 11 in position, a second transparent window 16 is arranged on a side wall of the box body 1, the second transparent window 16 is matched with a U-shaped pipe 4 in position, a box door 14 is symmetrically hinged to the side wall of the box body 1, the position of the box door 14 is matched with a sliding block 501 in position, a clamping groove is rotatably connected to the box door 14, a buckle is fixedly connected to the side wall of the box body 1, the clamping groove is matched with the buckle, the box door 14 is convenient to place and take out a sensor, the clamping groove and the buckle are convenient to fix the box door 14 and the box body 1, the reading displayed by the thermometer 11 is convenient to observe through the first transparent window.
In the invention, whether the pressures born by the two groups of pressure sensors are the same or not is judged conveniently through the arrangement of the U-shaped pipe 4 and the floating block 401, the arrangement of the extrusion pipe 901 and the push rod 902 is convenient for finely adjusting the pressures born by the two groups of pressure sensors, the arrangement of the rotating shaft 8, the threaded rod 801 and the fixed block 9 is convenient for simultaneously pressurizing the two groups of pressure sensors, the arrangement of the clamping mechanism is convenient for clamping and fixing the pressure sensors, and the arrangement of the water tank 2, the water guide pipe 201 and the water pump 202 is convenient for further confirming the calibration result.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. A sensor calibration device comprises a box body (1) and is characterized in that a water tank (2) is arranged on the side wall of the box body (1), a circulating pipe (3) is arranged in the box body (1), a water guide pipe (201) is connected between the water tank (2) and the circulating pipe (3), a water pump (202) is arranged on the water guide pipe (201), a U-shaped pipe (4) is arranged on the circulating pipe (3), scales are symmetrically arranged on the side wall of the U-shaped pipe (4), a sealing pipe (5) is symmetrically arranged at the upper end of the U-shaped pipe (4), a sliding block (501) is connected in the sealing pipe (5) in a sliding manner, a detection groove (502) is arranged in the sliding block (501), a clamping mechanism is arranged in the detection groove (502), floating blocks (401) are symmetrically arranged in the U-shaped pipe (4), a rotating shaft (8) is rotationally connected in the box, two sets of threaded rod (801) screw thread opposite direction, be equipped with gag lever post (10) in box (1), two sets of equal threaded connection has fixed block (9) on threaded rod (801), fixed block (9) and gag lever post (10) sliding connection, fixed block (9) lower extreme fixedly connected with extrusion pipe (901), extrusion pipe (901) female connection has push rod (902), push rod (902) and detection groove (502) position phase-match, be equipped with the carousel on push rod (902), be equipped with rotation handle (802) on pivot (8), rotation handle (802) rotate and connect on the lateral wall of box (1).
2. The sensor calibration device according to claim 1, wherein the clamping mechanism comprises a clamping groove (6), a clamping rod (601) is slidably connected in the clamping groove (6), a first spring (602) is fixedly connected to one end of the clamping rod (601) located in the clamping groove (6), one end of the first spring (602) far away from the clamping rod (601) is fixedly connected to the inner wall of the clamping groove (6), and a clamping plate (603) is fixedly connected to one end of the clamping rod (601) far away from the first spring (602).
3. The sensor calibration device according to claim 1, wherein a limiting block (402) is symmetrically and fixedly connected in the U-shaped tube (4).
4. The sensor calibration device according to claim 2, wherein a pulling string (604) is fixedly connected to the clamping rod (601), the pulling string (604) passes through the slider (501), and a pulling buckle (605) is fixedly connected to an end of the pulling string (604) far away from the clamping rod (601).
5. The sensor calibration device according to claim 1, wherein the circulation tube (3) is symmetrically provided with temperature control tubes (7), two sets of temperature control tubes (7) are respectively matched with the two sets of slide blocks (501), and the circulation tube (3) is provided with a heating mechanism.
6. Sensor calibration device according to claim 5, wherein the heating means comprise a heating tank (12) and a heating wire (121), the heating wire (121) being located inside the heating tank (12), the circulation tube (3) extending through the heating tank (12).
7. The sensor calibration device according to claim 1, wherein thermometers (11) are symmetrically arranged in the box body (1), and the thermometers (11) are respectively matched with the positions of the sliders (501).
8. The sensor calibration device according to claim 1, wherein a damping groove (13) is formed in the bottom of the box body (1), a support rod (131) is slidably connected in the damping groove (13), a second spring (132) is fixedly connected to one end of the support rod (131) located in the damping groove (13), one end of the second spring (132) far away from the support rod (131) is fixedly connected to the inner wall of the damping groove (13), and a support plate (133) is fixedly connected to one end of the support rod (131) far away from the second spring (132).
9. The sensor calibration device according to claim 7, wherein a first transparent window (15) is symmetrically arranged on the side wall of the box body (1), the first transparent window (15) is matched with the thermometer (11) in position, a second transparent window (16) is arranged on the side wall of the box body (1), the second transparent window (16) is matched with the U-shaped tube (4) in position, a box door (14) is symmetrically hinged on the side wall of the box body (1), the position of the box door (14) is matched with the position of the sliding block (501), a clamping groove is rotatably connected on the box door (14), a buckle is fixedly connected on the side wall of the box body (1), and the clamping groove is matched with the buckle.
10. A method for calibrating a sensor, comprising the steps of using the sensor calibration device of claim 1:
s1, leading water in the water tank (2) into the circulating pipe (3) through the water guide pipe (201) and the water pump (202) by a worker, and enabling the water in the U-shaped pipe to move the floating block (401) to rise to a certain height;
s2, placing a standard pressure sensor and a pressure sensor to be checked in the two groups of detection grooves (502) respectively, and clamping and fixing the two groups of pressure sensors through a clamping mechanism;
s3, rotating a rotating handle (802) to enable a rotating shaft (8) to rotate, enabling two groups of extrusion pipes (901) to pressurize sensors with calibration and standard sensors respectively through two groups of threaded rods (801) by the rotating shaft (8), meanwhile, pushing a sliding block (501) by the extrusion pipes (901) to slide towards a sealing pipe (5), pressing air in the sealing pipe (5) into a U-shaped pipe (4), and when scales corresponding to two groups of floating blocks (401) are consistent and pressure data uploaded by the two groups of sensors are the same, indicating that the reading of the sensors to be calibrated is accurate and calibration is not needed;
s4, when the corresponding scales of the two groups of floating blocks (401) are consistent, but the readings of the two groups of pressure sensors are different, the reading of the pressure sensor to be detected needs to be adjusted to be consistent with the reading of the standard pressure sensor;
s5, when the scales corresponding to the two groups of floating blocks (401) are not consistent, one of the turntables is rotated to enable the push rod (902) to further press the corresponding pressure sensor, so that the two groups of floating blocks (401) are adjusted to the same position, and the reading of the pressure sensor with calibration is adjusted to be consistent with the reading of a standard pressure sensor;
s6, after the first calibration is completed, water is further sent into the circulating pipe (3) through the water tank (2), the water guide pipe (201) and the water pump (202), so that the liquid level in the U-shaped pipe (4) drives the floating block (401) to rise, whether the dynamic change of the reading of the pressure sensor to be calibrated is consistent with that of the standard pressure sensor is observed, and the calibration result is further confirmed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011459444.3A CN112683319A (en) | 2020-12-11 | 2020-12-11 | Sensor calibration device and calibration method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011459444.3A CN112683319A (en) | 2020-12-11 | 2020-12-11 | Sensor calibration device and calibration method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112683319A true CN112683319A (en) | 2021-04-20 |
Family
ID=75449246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011459444.3A Withdrawn CN112683319A (en) | 2020-12-11 | 2020-12-11 | Sensor calibration device and calibration method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112683319A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114397004A (en) * | 2022-01-18 | 2022-04-26 | 凯晟动力技术（嘉兴）有限公司 | High-temperature-resistant pressure sensor calibration device and use method thereof |
-
2020
- 2020-12-11 CN CN202011459444.3A patent/CN112683319A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114397004A (en) * | 2022-01-18 | 2022-04-26 | 凯晟动力技术（嘉兴）有限公司 | High-temperature-resistant pressure sensor calibration device and use method thereof |
| CN114397004B (en) * | 2022-01-18 | 2022-07-19 | 凯晟动力技术（嘉兴）有限公司 | High-temperature-resistant pressure sensor calibration device and use method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103234662A (en) | Compensation method for automatic temperature detection and automatic temperature detection system | |
| CN112683319A (en) | Sensor calibration device and calibration method thereof | |
| CN209524930U (en) | A kind of displacement sensor for pull rope calibrating installation | |
| CN104034290B (en) | A kind of automatic tester for detecting outside framework oil seal size | |
| CN201034563Y (en) | Sample intersecting surface automatic sizing device | |
| CN215677943U (en) | Rockwell hardness tester based on indentation depth | |
| CN211205358U (en) | Performance testing device for fiber grating sensor design | |
| CN210198299U (en) | Novel tunnel convergence instrument | |
| CN220289267U (en) | Shell part pressure test equipment | |
| CN116164608A (en) | Semi-automatic steel tape efficient calibrating device | |
| CN219141795U (en) | Automatic secondary element detecting instrument with contact probe structure | |
| CN218628798U (en) | Tension force measuring and calibrating device for small force value dynamometer | |
| CN219607873U (en) | Steel tape verification platform machine | |
| KR100391766B1 (en) | Automated Hydrometer Calibration System | |
| CN205537579U (en) | Utensil is examined in special use of adjustable reading type external diameter | |
| CN220356537U (en) | Temperature sensor | |
| CN215639506U (en) | Novel automatic instrument and meter convenient to carry | |
| CN220772092U (en) | Aperture measuring device for flange processing | |
| CN215524416U (en) | Calibration clamp of metering instrument | |
| CN220018421U (en) | Non-polished surface rapid measuring angle device | |
| CN220120602U (en) | Hardness detection device for front fork production of electric vehicle | |
| CN214830343U (en) | Blood volume evaluation device for blood culture | |
| CN210689881U (en) | Lifting torque measuring device for land drilling platform | |
| CN220608316U (en) | Height measuring device for children | |
| CN217033559U (en) | System for automatically measuring lubricity and thickness of coating |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210420 |
|
| WW01 | Invention patent application withdrawn after publication |