CN112113703A - Engine pressure sensor testing device - Google Patents
Engine pressure sensor testing device Download PDFInfo
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- CN112113703A CN112113703A CN202010936333.0A CN202010936333A CN112113703A CN 112113703 A CN112113703 A CN 112113703A CN 202010936333 A CN202010936333 A CN 202010936333A CN 112113703 A CN112113703 A CN 112113703A
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- 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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Abstract
The invention discloses a testing device for a pressure sensor of an engine, which comprises a pressure tank, a pressure sensor and a pressure sensor, wherein the pressure tank is arranged on the pressure tank; a mounting pedestal disposed on an outer periphery of the pressure tank, the mounting pedestal configured to mount a pressure sensor to be tested to enable the pressure sensor to measure a pressure within the pressure tank; the data acquisition box is electrically connected with the pressure sensor to be tested so as to acquire test data; when the pressure tank is used, the testing device is respectively arranged in different temperature environments, the pressure sensors to be tested are installed according to testing requirements, the pressure tank is adjusted to different testing pressures, and the voltage values of the pressure sensors are obtained under the testing pressures. The invention can shorten the development period and can more quickly and comprehensively evaluate the performance characteristics of the sensor.
Description
Technical Field
The invention relates to the technical field of engine testing, in particular to a testing device for an engine pressure sensor.
Background
The sensors are important parts of the engine, the number and the types of the sensors carried by each engine are large, and the performance of the sensors directly influences the achievement of the performance and the emission index of the engine. In the research and development and manufacturing process, the pressure sensor test can be carried with an engine or a whole vehicle for testing, so that the test cost is high, the test period is long, and the labor intensity of personnel is high.
Therefore, how to more quickly and comprehensively evaluate the performance characteristics of the sensor to shorten the development period is one of the important problems to be solved urgently in the field.
Disclosure of Invention
The invention aims to provide a testing device for an engine pressure sensor, which solves the defects in the prior art, can solve the problems and is beneficial to shortening the test period.
The invention provides an engine pressure sensor testing device, which comprises,
a pressure tank;
a mounting pedestal disposed on an outer periphery of the pressure tank, the mounting pedestal configured to mount a pressure sensor to be tested to enable the pressure sensor to measure a pressure within the pressure tank;
the data acquisition box is electrically connected with the pressure sensor to be tested so as to acquire test data;
when the pressure tank is used, the testing device is respectively arranged in different temperature environments, the pressure sensors to be tested are installed according to testing requirements, the pressure tank is adjusted to different testing pressures, and the voltage values of the pressure sensors are obtained under the testing pressures.
The engine pressure sensor testing device comprises a pressure sensor, a pressure sensor and a pressure sensor, wherein the pressure sensor optionally further comprises a booster pump and a vacuum pump;
the booster pump and the vacuum pump are both communicated with the pressure tank;
the booster pump is used for increasing the pressure in the pressure tank;
the vacuum pump is used for reducing the pressure in the pressure tank;
so as to regulate the pressure in the pressure tank to different test pressures by the booster pump and the vacuum pump; and the minimum pressure in the pressure tank is less than-60 kpa, and the maximum pressure in the pressure tank is greater than 500 kpa.
The engine pressure sensor testing device comprises a controller and a pressure calibration instrument, wherein the controller is used for controlling the pressure calibration instrument to perform pressure calibration;
the pressure calibration instrument is connected with the pressure tank and is used for acquiring the pressure in the pressure tank;
the controller is respectively and electrically connected with the data acquisition box, the booster pump, the pressure calibrator and the vacuum pump.
The engine pressure sensor testing device comprises an engine pressure sensor, a pressure sensor and a pressure sensor, wherein the pressure sensor testing device optionally further comprises an industrial personal computer;
the industrial personal computer is electrically connected with the controller, the controller acquires a test instruction from the industrial personal computer, controls the booster pump and the vacuum pump to adjust the pressure in the pressure tank to each test pressure according to the test instruction, and acquires the voltage value of the pressure sensor to be tested under each test pressure during testing; the controller is also used for outputting the acquired voltage value of the pressure sensor to be tested to the industrial personal computer.
The engine pressure sensor testing device as described above, wherein optionally, a data conversion module is further included;
the data acquisition box is electrically connected with the controller through the data conversion module.
The engine pressure sensor testing device as described above, wherein optionally, a plurality of the pressure sensors to be tested are installed at uniform depth before testing;
the pressure sensor to be tested is connected with the mounting support on the pressure tank in a sealing mode;
the detection end of the pressure sensor to be tested is inserted into the pressure tank; and the mounting support which is not provided with the pressure sensor to be tested is sealed by a block.
Compared with the prior art, the device and the method for testing the high-low pressure performance and the durability of the engine pressure sensor can realize the performance and durability test of a plurality of engine pressure sensors at the same time; the testing device and the testing method are suitable for research and development processes and manufacturing processes, and have the characteristics of simple operation, short detection time and high measurement precision; the invention does not need to be matched with an engine and a whole vehicle for testing, has lower integral manufacturing cost and more comprehensive measurement compared with other inventions, and has simpler device and testing method, stronger effect and shortened integral development period of a project.
Drawings
FIG. 1 is a schematic structural view of the present invention;
description of reference numerals:
the system comprises a pressure tank 1, a mounting support 2, a pressure sensor 3, a data acquisition box 4, a booster pump 5, a vacuum pump 6, a controller 7, a pressure calibrator 8, an industrial personal computer 9 and a data conversion module 10.
Detailed Description
The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the invention.
The embodiment of the invention comprises the following steps: as shown in FIG. 1, the invention provides an engine pressure sensor testing device, which comprises a pressure tank 1, a mounting support 2 and a data acquisition box 4. The pressure tank 1 is used for forming the pressure to be tested so as to simulate the pressure environment of the test. The mounting support 2 is used for mounting a pressure sensor 3 to be tested.
Specifically, the mounting support 2 is disposed on the periphery of the pressure tank 1, and in the implementation, a hole communicated with the pressure tank 1 is formed in the mounting support 2, so that the detection end of the pressure sensor 3 can be inserted into the pressure tank 1 through the hole. In particular, the mounting support 2 is provided for mounting a pressure sensor 3 to be tested, so that the pressure sensor 3 is able to measure the pressure inside the pressure tank 1.
More specifically, the data collection box 4 is electrically connected to the pressure sensor 3 to be tested to obtain test data; specifically, it is for acquiring voltage signals of the respective pressure sensors 3. When the pressure tank is used, the testing device is respectively arranged in different temperature environments, the pressure sensors 3 to be tested are installed according to testing requirements, the pressure tank 1 is adjusted to different testing pressures, and the voltage values of the pressure sensors 3 are obtained under the testing pressures.
When in specific use, the method comprises the following steps:
the first step is as follows: firstly, a measured data storage channel is arranged, so that the voltage value and the data of the pressure sensor can be conveniently acquired and processed and then stored;
the second step is that: the pressure sensor to be tested is selected, such as, in particular, an intake pressure sensor, an exhaust pressure sensor and/or a negative pressure sensor.
The third step: calibration is performed for pressure tank 1, the calibration range including high pressure calibration and low pressure calibration, typically test pressure range is-60 to 500 kpa. In a specific test, the test is performed at a plurality of pressure points of-60 to 500kpa, such as-60 kpa, -40kpa.
The fourth step: the availability of the measuring equipment can be measured by a universal meter and a voltmeter; in the present invention, the data collection box 4 can function as a multimeter and a voltmeter.
The fifth step: the mounting depth of all pressure sensor tools needs to be controlled all the time, otherwise, the test result is influenced;
and a sixth step: the installation tightness of the pressure sensor is ensured, and the consistency and the accuracy of the contact mode and the voltage of a multimeter or a voltmeter and the sensor are ensured;
the seventh step: carrying out preparation work before testing, mainly preparing equipment parameters, tool matching, pressure sensor parameters and pressure sensor calibration in advance, setting a test working condition if signal output exists after setting is finished, and returning to the previous step to carry out preparation work inspection if no signal output exists;
eighth step: setting parameters such as a pressure tank boundary value, a stabilization time of 10min, a measured data frequency, a voltage value, a working condition operation time, a pressure range and the like for parameter setting;
the ninth step: after setting all parameters, detecting whether the configuration is successful, and after the configuration is successful, carrying out a real object measurement stage;
the tenth step: storing all the measured data after the measurement parameters are completed;
the eleventh step: if the data is abnormal, returning to the previous step for checking, and if the data is normal, exporting a data presentation report;
the twelfth step: the measurement is completed.
By adopting the device and the testing method, the detection and development period of the product can be greatly shortened.
The detection device is simple to install and operate, short in detection time, high in measurement precision and low in cost, is more suitable for the research and development process and the whole manufacturing process, and provides powerful support for the production and the whole research and development process due to the effectiveness of the measured data.
As a better implementation mode, the device also comprises a booster pump 5 and a vacuum pump 6; specifically, the booster pump 5 and the vacuum pump 6 are both communicated with the pressure tank 1; the booster pump 5 is used for increasing the pressure in the pressure tank 1; the vacuum pump 6 is used for reducing the pressure in the pressure tank 1; so that the pressure in the pressure tank 1 can be adjusted to different test pressures by the booster pump 5 and the vacuum pump 6; and the minimum pressure in the pressure tank 1 is less than-60 kpa, and the maximum pressure in the pressure tank 1 is greater than 500 kpa. In this way, it is possible to facilitate the regulation of the pressure inside the pressure tank 1 by the booster pump 5 or the vacuum pump 6 as needed.
As a better implementation mode, the device also comprises a controller 7 and a pressure calibration instrument 8; specifically, the pressure calibration instrument 8 is connected with the pressure tank 1, and the pressure calibration instrument 8 is used for acquiring the pressure in the pressure tank 1; the controller 7 is respectively electrically connected with the data acquisition box 4, the booster pump 5, the pressure calibrator 8 and the vacuum pump 6. Through the pressure calibration instrument 8, the pressure value in the pressure tank 1 can be obtained, so that the pressure sensor 3 can be tested at an accurate pressure value.
As a better implementation mode, the system also comprises an industrial personal computer 9; the industrial personal computer 9 may be a computer or a display with a touch screen input function, specifically, the industrial personal computer 9 is electrically connected to the controller 7, the controller 7 obtains a test instruction from the industrial personal computer 9, controls the booster pump 5 and the vacuum pump 6 to adjust the pressure in the pressure tank 1 to each test pressure according to the test instruction, and obtains a voltage value of the pressure sensor 3 to be tested at each test pressure during testing; the controller 7 is further configured to output the obtained voltage value of the pressure sensor 3 to be tested to the industrial personal computer 9.
As a better implementation manner, the system further comprises a data conversion module 10; the data acquisition box 4 is electrically connected with the controller 7 through the data conversion module 10. The data conversion module 10 is configured to convert an analog signal into a digital signal.
As a better implementation manner, before testing, the installation depths of a plurality of pressure sensors 3 to be tested are consistent; the pressure sensor 3 to be tested is hermetically connected with the mounting support 2 on the pressure tank 1; the detection end of the pressure sensor 3 to be tested is inserted into the pressure tank 1; and the mounting support 2 on which the pressure sensor 3 to be tested is not mounted is sealed by a block. Therefore, the pressure stability in the pressure tank 1 can be ensured, and the accuracy of the pressure measurement result can be ensured.
The construction, features and functions of the present invention are described in detail in the embodiments illustrated in the drawings, which are only preferred embodiments of the present invention, but the present invention is not limited by the drawings, and all equivalent embodiments modified or changed according to the idea of the present invention should fall within the protection scope of the present invention without departing from the spirit of the present invention covered by the description and the drawings.
Claims (6)
1. The utility model provides an engine pressure sensor testing arrangement which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
a pressure tank (1);
a mounting support (2), the mounting support (2) being arranged on the outer circumference of the pressure tank (1), the mounting support (2) being arranged for mounting a pressure sensor (3) to be tested, such that the pressure sensor (3) is capable of measuring the pressure inside the pressure tank (1);
the data acquisition box (4), the data acquisition box (4) is electrically connected with the pressure sensor (3) to be tested so as to acquire test data;
during the use, place testing arrangement respectively under different temperature environment to according to the test requirement installation await measuring pressure sensor (3), adjust overhead tank (1) to different test pressure, and obtain pressure sensor's (3) voltage value under each test pressure.
2. The engine pressure sensor testing device according to claim 1, characterized in that: the device also comprises a booster pump (5) and a vacuum pump (6);
the booster pump (5) and the vacuum pump (6) are both communicated with the pressure tank (1);
the booster pump (5) is used for increasing the pressure in the pressure tank (1);
the vacuum pump (6) is used for reducing the pressure in the pressure tank (1);
so as to regulate the pressure inside the pressure tank (1) to different test pressures by means of the booster pump (5) and the vacuum pump (6), the pressure value inside the pressure tank (1) being able to be adjusted; and the minimum pressure in the pressure tank (1) is less than-60 kpa, and the maximum pressure in the pressure tank (1) is greater than 500 kpa.
3. The engine pressure sensor testing device according to claim 2, characterized in that: the device also comprises a controller (7) and a pressure calibrator (8);
the pressure calibration instrument (8) is connected with the pressure tank (1), and the pressure calibration instrument (8) is used for acquiring the pressure in the pressure tank (1);
the controller (7) is respectively electrically connected with the data acquisition box (4), the booster pump (5), the pressure calibrator (8) and the vacuum pump (6).
4. The engine pressure sensor testing device according to claim 3, characterized in that: the system also comprises an industrial personal computer (9);
the industrial personal computer (9) is electrically connected with the controller (7), the controller (7) acquires a test instruction from the industrial personal computer (9), controls the booster pump (5) and the vacuum pump (6) to adjust the pressure in the pressure tank (1) to each test pressure according to the test instruction, and acquires the voltage value of the pressure sensor (3) to be tested under each test pressure during testing; the controller (7) is also used for outputting the acquired voltage value of the pressure sensor (3) to be tested to the industrial personal computer (9).
5. The engine pressure sensor testing device according to claim 4, characterized in that: a data conversion module (10) is also arranged;
the data acquisition box (4) is electrically connected with the controller (7) through the data conversion module (10).
6. The engine pressure sensor test device according to any one of claims 1 to 5, characterized in that: the installation depths of a plurality of pressure sensors (3) to be tested are consistent before testing;
the pressure sensor (3) to be tested is connected with the mounting support (2) on the pressure tank (1) in a sealing manner;
the detection end of the pressure sensor (3) to be tested is inserted into the pressure tank (1); and the mounting support (2) which is not provided with the pressure sensor (3) to be tested is sealed by a block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010936333.0A CN112113703A (en) | 2020-09-08 | 2020-09-08 | Engine pressure sensor testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010936333.0A CN112113703A (en) | 2020-09-08 | 2020-09-08 | Engine pressure sensor testing device |
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| Publication Number | Publication Date |
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| CN112113703A true CN112113703A (en) | 2020-12-22 |
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| CN202010936333.0A Pending CN112113703A (en) | 2020-09-08 | 2020-09-08 | Engine pressure sensor testing device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113358290A (en) * | 2021-06-16 | 2021-09-07 | 马鞍山市奈特仪表科技有限公司 | Stainless steel sealing detection method based on helium mass spectrometer leak detector |
| CN113567010A (en) * | 2021-08-17 | 2021-10-29 | 安徽江淮汽车集团股份有限公司 | Engine temperature sensor test system and test method |
| CN117686139A (en) * | 2024-01-31 | 2024-03-12 | 江西中发天信航空发动机科技有限公司 | Pressure detection accuracy detection system and detection method of pressure sensor |
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| CN210071225U (en) * | 2019-08-12 | 2020-02-14 | 泰安磐然压力仪器有限公司 | Gas pressure reducer calibrating device |
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2020
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113358290A (en) * | 2021-06-16 | 2021-09-07 | 马鞍山市奈特仪表科技有限公司 | Stainless steel sealing detection method based on helium mass spectrometer leak detector |
| CN113358290B (en) * | 2021-06-16 | 2022-05-31 | 马鞍山市奈特仪表科技有限公司 | Stainless steel sealing detection method based on helium mass spectrometer leak detector |
| CN113567010A (en) * | 2021-08-17 | 2021-10-29 | 安徽江淮汽车集团股份有限公司 | Engine temperature sensor test system and test method |
| CN117686139A (en) * | 2024-01-31 | 2024-03-12 | 江西中发天信航空发动机科技有限公司 | Pressure detection accuracy detection system and detection method of pressure sensor |
| CN117686139B (en) * | 2024-01-31 | 2024-04-16 | 江西中发天信航空发动机科技有限公司 | Pressure detection accuracy detection system and detection method of pressure sensor |
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Application publication date: 20201222 |
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