CN218955988U - Pressure response time testing device of pressure sensor - Google Patents
Pressure response time testing device of pressure sensor Download PDFInfo
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- CN218955988U CN218955988U CN202223249818.6U CN202223249818U CN218955988U CN 218955988 U CN218955988 U CN 218955988U CN 202223249818 U CN202223249818 U CN 202223249818U CN 218955988 U CN218955988 U CN 218955988U
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Abstract
The utility model discloses a pressure response time testing device of a pressure sensor, which comprises a bottom plate, wherein supporting plates are arranged on two sides of the top end of the bottom plate through supporting pieces, a hydraulic cylinder is arranged on the top end of the supporting plate, a pressing tool is arranged at the bottom end of a piston rod of the hydraulic cylinder, a rectangular hollow box for storing pressure sensor detecting pieces is arranged at the central position of the top end of the bottom plate, source meters electrically connected with the two groups of pressure sensor detecting pieces are arranged on the top ends of the bottom plate on two sides of the rectangular hollow box, and a power supply for supplying power to the two groups of pressure sensor detecting pieces is arranged on one side of the top end of the supporting plate. According to the utility model, the time difference is measured by applying rapid pressure change to the sample and the standard reference sensor at the same time, so that the pressure response time of the pressure sensor is calculated, the test is rapid and stable, and the operation efficiency is high.
Description
Technical Field
The utility model relates to the technical field of detection of sensitive elements, in particular to a pressure response time testing device of a pressure sensor.
Background
A pressure sensor is a device capable of sensing a pressure signal and converting the pressure signal into an electrical signal with a usable output according to a certain rule, and is a commonly used pressure instrument, and has certain application in a plurality of industries, wherein the pressure response time of the pressure sensor is used for describing the response rate of the sensor to an external pressure load, and the response time of the pressure sensor is usually in units of milliseconds for a given pressure medium, wherein T63 refers to the time required by the sensor to output from 0% to 63%, and T90 refers to the time required by the sensor to output from 0% to 90%. The pressure change of the pressure sensor is detected in the prior art, the pressure sensor is powered and pressurized, meanwhile, the voltage change of the output end of the voltage gear detection sensor of the universal meter is obvious if the relative sensitivity of the pressure sensor is large, and if the relative sensitivity of the pressure sensor is not changed at all, the pressure sensor needs to apply larger external pressure to continue detection, and the pressure response time of the pressure sensor is difficult to accurately reflect in the operation process, so that a pressure response time testing device of the pressure sensor is needed to accurately test the pressure response time of the pressure sensor.
Disclosure of Invention
The utility model aims to provide a pressure response time testing device for a pressure sensor, which is used for solving the problem that the pressure response time of the pressure sensor is difficult to accurately test in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a pressure sensor pressure response time testing arrangement, includes the bottom plate, the layer board is all installed through support piece in the both sides on bottom plate top, the pneumatic cylinder is installed on the top of layer board, the frock of exerting pressure is installed to the piston rod bottom of pneumatic cylinder, the central point department on bottom plate top installs the rectangle hollow box that supplies pressure sensor to detect the piece and deposit, the source table with two sets of pressure sensor detection piece electric connection is installed on the bottom plate top of rectangle hollow box both sides, the power that supplies power for two sets of pressure sensor detection pieces is installed to one side on layer board top, the oscilloscope with source table electric connection is installed on the layer board top of power one side.
Preferably, the support piece is an inverted U-shaped buckle frame fixed on two sides of the top end of the bottom plate, a right-angle supporting table is fixed on the top end of the inverted U-shaped buckle frame, and the top end of the right-angle supporting table is fixedly connected with the bottom end of the supporting plate.
Preferably, a hydraulic controller is installed on the outer wall of one side of the right-angle support platform, and the output end of the hydraulic controller is electrically connected with the input end of the hydraulic cylinder.
Preferably, the pressing tool is a connecting plate arranged at the bottom end of a piston rod of the hydraulic cylinder, and a steel seat is fixed at the bottom end of the connecting plate.
Preferably, both sides of the bottom end of the supporting plate are provided with guiding structures, and the guiding structures are connected with the connecting plates.
Preferably, the guide structure is a fixed sleeve fixed at two sides of the top end of the supporting plate, an upright post is slidably arranged in the fixed sleeve, a convex column is fixed at the bottom end of the upright post, and the bottom end of the convex column extends to the inside of the connecting plate and is fixedly connected with the connecting plate.
Preferably, rubber columns are arranged on two sides of the top end of the bottom plate.
Preferably, the widths of the connecting plate and the steel seat are equal.
Preferably, the rectangular hollow box is made of members made of aluminum alloy materials, and a hollow cavity is formed in the rectangular hollow box.
Compared with the prior art, the utility model has the beneficial effects that: the pressure response time testing device for the pressure sensor applies pressure in a hydraulic mode, places a product and a standard sample at the same height, ensures that a pressure load is simultaneously loaded to the product and the standard sample, increases testing accuracy, measures time difference by simultaneously applying rapid pressure change to the sample and the standard reference sensor, further calculates pressure response time of the pressure sensor, and is rapid and stable in testing and higher in operating efficiency.
Drawings
FIG. 1 is a schematic diagram of a front view of the present utility model;
FIG. 2 is a schematic side view of the present utility model;
FIG. 3 is a schematic side sectional view of the present utility model;
FIG. 4 is a schematic perspective view of a base plate according to the present utility model;
FIG. 5 is a schematic view of the front view of the fixing sleeve according to the present utility model;
in the figure: 1. a bottom plate; 101. a rubber column; 2. an inverted U-shaped buckle frame; 3. a right angle support; 4. a hydraulic controller; 5. a supporting plate; 501. a fixed sleeve; 502. a column; 503. a convex column; 6. a hydraulic cylinder; 7. a connecting plate; 8. a steel seat; 9. a power supply; 10. an oscilloscope; 11. a source table; 12. a rectangular hollow box; 1201. hollow cavity.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-5, an embodiment of the present utility model is provided: the pressure response time testing device of the pressure sensor comprises a bottom plate 1, wherein rubber columns 101 are arranged on two sides of the top end of the bottom plate 1, a supporting plate 5 is arranged on two sides of the top end of the bottom plate 1 through supporting pieces, the supporting pieces are inverted U-shaped buckling frames 2 fixed on two sides of the top end of the bottom plate 1, a right-angle supporting table 3 is fixed on the top end of each inverted U-shaped buckling frame 2, and the top end of each right-angle supporting table 3 is fixedly connected with the bottom end of each supporting plate 5;
the top end of the supporting plate 5 is provided with a hydraulic cylinder 6, the outer wall of one side of the right-angle supporting table 3 is provided with a hydraulic controller 4, and the output end of the hydraulic controller 4 is electrically connected with the input end of the hydraulic cylinder 6;
the bottom end of a piston rod of the hydraulic cylinder 6 is provided with a pressing tool, the pressing tool is a connecting plate 7 arranged at the bottom end of the piston rod of the hydraulic cylinder 6, a steel seat 8 is fixed at the bottom end of the connecting plate 7, and the widths of the connecting plate 7 and the steel seat 8 are equal;
a rectangular hollow box 12 for storing a pressure sensor detection piece is arranged at the center position of the top end of the bottom plate 1, a worker places a pressure sensor acquisition product with response time to be tested and a pressure sensor standard sample in the rectangular hollow box 12, the heights of the acquisition product and the standard sample are required to be the same, external pressure load is ensured to be simultaneously loaded to the product and the standard sample, and the testing accuracy of the device is improved;
the hydraulic cylinder 6 is started to work by a worker through the hydraulic controller 4, so that the hydraulic cylinder 6 drives the connecting plate 7 and the steel seat 8 to descend, and the steel seat 8 is used for pressing the collected product and the standard sample;
the top end of the bottom plate 1 at two sides of the rectangular hollow box 12 is provided with a source meter 11 electrically connected with two groups of pressure sensor detection pieces, one side of the top end of the supporting plate 5 is provided with a power supply 9 for supplying power to the two groups of pressure sensor detection pieces, the top end of the supporting plate 5 at one side of the power supply 9 is provided with an oscilloscope 10 electrically connected with the source meter 11, and the power supply 9 supplies the same input voltage of products and standard samples;
the oscilloscope 10 and the source meter 11 collect output voltage and current values of the product and the standard sample, the processed voltage values and current values are transmitted to an external computer end, and the computer end is used for processing output voltage curves and current value curves of the collected product and the standard sample;
in the initial state, external pressure is not loaded, then pressure is applied to a test piece, data are collected by the oscilloscope 10 and the source meter 11, and the pressure of the upper limit of the measuring range of the product is loaded;
taking T90 as an example, two times are required to be acquired:
t 0-standard: i.e., the time at which the output of the standard sample changes from zero;
t 90-product: namely, the output time of the product to be tested reaches 90% of the output time;
then t90=t90 for the product-T0 standard, the device applies pressure hydraulically, and the pressure response time is calculated by measuring the time difference by applying rapid pressure changes to the sample and standard reference sensors simultaneously;
the two sides of the bottom end of the supporting plate 5 are provided with guide structures, the guide structures are connected with the connecting plate 7, the guide structures are fixed on the fixed sleeves 501 on the two sides of the top end of the supporting plate 5, the upright posts 502 are slidably arranged in the fixed sleeves 501, the bottom ends of the upright posts 502 are fixedly provided with convex columns 503, the bottom ends of the convex columns 503 extend into the connecting plate 7 and are fixedly connected with the connecting plate 7, the lifting stability of the connecting plate 7 and the steel seat 8 is improved through the fixed sleeves 501 and the upright posts 502 in the working process, and the moving precision of the connecting plate 7 and the steel seat 8 in the vertical direction is ensured;
the rectangular hollow box 12 is made of members made of aluminum alloy materials, a hollow cavity 1201 is formed in the rectangular hollow box 12, and when the pressure is too high, the rectangular hollow box 12 plays a role in preventing workpieces from sputtering, so that the measurement safety of the device is guaranteed.
When the method is used, firstly, a worker collects products and standard samples of the pressure sensor to be tested for response time in the rectangular hollow box 12, the heights of the collected products and the standard samples are the same, external pressure loads are ensured to be simultaneously loaded to the products and the standard samples, the testing accuracy of the device is improved, then the worker starts the hydraulic cylinder 6 to work through the hydraulic controller 4, the hydraulic cylinder 6 drives the connecting plate 7 and the steel seat 8 to descend, the steel seat 8 is used for pressing the collected products and the standard samples, at the moment, the power supply 9 supplies the same input voltage to the products and the standard samples, the oscilloscope 10 and the source meter 11 collect the output voltage and the current value of the products and the standard samples, the processed voltage value and current value are conveyed to an external computer end, the computer end is used for processing the output voltage curve and the current value curve of the collected products and the standard samples, the device applies pressure in a hydraulic mode, and the time difference is measured through applying rapid pressure change to the samples and the standard reference sensors at the same time, and the pressure response time is calculated.
Claims (9)
1. A pressure sensor pressure response time testing device, characterized in that: including bottom plate (1), layer board (5) are all installed through support piece in both sides on bottom plate (1) top, pneumatic cylinder (6) are installed on the top of layer board (5), frock of exerting pressure is installed in the piston rod bottom of pneumatic cylinder (6), rectangular hollow box (12) that supply pressure sensor to detect the piece and deposit are installed to the central point department on bottom plate (1) top, source table (11) with two sets of pressure sensor detection piece electric connection are installed on bottom plate (1) top of rectangular hollow box (12) both sides, power (9) for two sets of pressure sensor detection piece power supplies are installed to one side on layer board (5) top of power (9) one side, oscilloscope (10) with source table (11) electric connection are installed.
2. A pressure sensor pressure response time testing device according to claim 1, wherein: the support piece is an inverted U-shaped buckle frame (2) fixed at two sides of the top end of the bottom plate (1), a right-angle supporting table (3) is fixed at the top end of the inverted U-shaped buckle frame (2), and the top end of the right-angle supporting table (3) is fixedly connected with the bottom end of the supporting plate (5).
3. A pressure sensor pressure response time testing device according to claim 2, wherein: the outer wall of one side of the right-angle supporting table (3) is provided with a hydraulic controller (4), and the output end of the hydraulic controller (4) is electrically connected with the input end of the hydraulic cylinder (6).
4. A pressure sensor pressure response time testing device according to claim 1, wherein: the pressing tool is a connecting plate (7) arranged at the bottom end of a piston rod of the hydraulic cylinder (6), and a steel seat (8) is fixed at the bottom end of the connecting plate (7).
5. The pressure sensor pressure response time testing device of claim 4, wherein: both sides of the bottom end of the supporting plate (5) are provided with guide structures, and the guide structures are connected with the connecting plates (7) mutually.
6. A pressure sensor pressure response time testing device according to claim 5, wherein: the guide structure is fixed cover (501) on both sides on the top end of layer board (5), inside slidable mounting of fixed cover (501) has stand (502), and the bottom mounting of stand (502) has projection (503), and the bottom of projection (503) extends to the inside of connecting plate (7) and with connecting plate (7) fixed connection.
7. A pressure sensor pressure response time testing device according to claim 1, wherein: rubber columns (101) are arranged on two sides of the top end of the bottom plate (1).
8. The pressure sensor pressure response time testing device of claim 4, wherein: the widths of the connecting plate (7) and the steel seat (8) are equal.
9. A pressure sensor pressure response time testing device according to claim 1, wherein: the rectangular hollow box (12) is made of an aluminum alloy member, and a hollow cavity (1201) is formed in the rectangular hollow box (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223249818.6U CN218955988U (en) | 2022-12-05 | 2022-12-05 | Pressure response time testing device of pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223249818.6U CN218955988U (en) | 2022-12-05 | 2022-12-05 | Pressure response time testing device of pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218955988U true CN218955988U (en) | 2023-05-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223249818.6U Active CN218955988U (en) | 2022-12-05 | 2022-12-05 | Pressure response time testing device of pressure sensor |
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| Country | Link |
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| CN (1) | CN218955988U (en) |
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2022
- 2022-12-05 CN CN202223249818.6U patent/CN218955988U/en active Active
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