Sensor test system and method

A test system and sensor technology, applied in the direction of instruments, etc., can solve the problem of multi-channel, multi-type sensor system construction methods and test methods, methods that do not involve flexible power supply requirements for sensors, and do not have versatility and scalability issues such as the ability to improve applicability and robustness, improve development efficiency, and facilitate testing

Inactive Publication Date: 2014-11-05
BEIJING AEROSPACE INST OF THE LONG MARCH VEHICLE +1
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  • Application Information

AI Technical Summary

Problems solved by technology

[0010] (1) The object of the above literature research is the test of a single type of sensor, which does not have the ability of versatility and scalability;
[0011] (2) The sensor test power supply method in the above literature is single, and does not involve a method for flexibly supplying power to the sensor;
[0012] (3) The above literature does not involve in the software design, using the method of multi-channel single sampling rate to make a preliminary judgment on the zero level of the sensor system, and using single-channel multi-sampling rate to make specific judgments on the performance of a single sensor or several sensors method;
[0013] (4) The above literature does not involve the analysis method of test data abnormality. When using multi-channel single sampling rate to analyze the data of multiple sensors, how to judge the sensor output abnormality and the method of judging the abnormal situation
[0014] (5) The above literature does not involve the setting method of the sensor sampling rate used in the sensor system test. This method includes the system level test and the test of individual sensors
[0015] To sum up, according to the data retrieval results, the relevant literature does not involve a construction method and test method that can adapt to a multi-channel and multi-type sensor system

Method used

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example 1

[0098] The test program of this sensor test system completes the test of multiple sensors, and uses multi-channel single sampling rate to test the sensor system. Multi-channel single sampling rate means that multiple channels adopt one sampling rate. This sensor test system measures 37 channels of data, which is composed of 26 channels of slowly changing parameters and 10 channels of fast changing parameters, of which 6 channels of platinum resistance temperature sensors, 5 channels of temperature thermal sensors, and 16 channels of thermocouple temperature sensors are slowly changing parameters. , 6-way vibration sensor, 1-way noise sensor, 3-way impact sensor are fast-changing parameters.

[0099] The sensor power supply module uses a combination of +5V, +15V, -15V and +28V power supplies to complete the 6-way platinum resistance temperature sensor, 5-way thermal temperature sensor, 16-way thermocouple temperature sensor, 6-way vibration sensor, and 1-way noise sensor. For p...

example 2

[0105] The diagnostic program of this sensor test system completes the test and analysis of a single sensor and the abnormal test sensor, and uses a single channel with multiple sampling rates to test the sensor system. Single channel with multiple sampling rates means that a single channel uses different sampling rates to test 1 vibration sensor .

[0106] The sensor power supply module uses a combination of +5V, +15V, -15V and +28V power supply to complete the +15V, -15V power supply for 1 vibration sensor. The measurement parameters of this sensor are fast-changing parameters.

[0107] The data acquisition uses a 32-channel test module in the data acquisition device to complete the measurement of the parameters of one channel. The sampling rate of the test software is set to 10000Hz, and the working frequency response of the vibration sensor is 20-2000Hz, which meets the requirements of the sampling rate law and is greater than the highest sampling rate. 2 times the require...

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Abstract

The invention relates to a sensor test system and method. The test system comprises a ground power supply module, a sensor module, a data collecting module, a parameter setting module, a sampling rate determining module, a demand determining module, a test module and an output and storage module. The sensor test method includes the steps that the parameter setting module conducts initial setting, test demands are determined, and a voltage signal output by the whole sensor module is collected; the collected voltage signal is input into the test module for testing, and test results are finally analyzed. By means of the sensor test system and method, the no-less-than-250-circuit sensor output voltage is measured, the single-sensor working performance is detected, the requirements that the system test circuit number can be increased and is easily increased can be met, and the test efficiency is high.

Description

technical field [0001] The invention relates to a sensor testing system and a testing method, which can realize the measurement of the output voltage of not less than 250 sensors, and can also realize the detection of the working performance of a single sensor, and is suitable for the test of the sensor system in the remote measurement system. Background technique [0002] In the telemetry system, the sensor system is an important part of the system. It involves the measurement of environmental parameters such as heat, force, and chemistry. It is determined that the number of products on the bombs involved in this state is large, the ground test is complicated, and it is not conducive to the overall analysis of the system. Accordingly, the present invention relates to an aspect of judging the working state of the sensor system. Using virtual instrument technology, it can realize more than The ability to judge the output voltage of 250 sensors. [0003] In order to judge the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D18/00
Inventor 刘举涛闫新峰金文李宝陈华杰李智中孟晨光王洪波鱼荔红吴丽美
Owner BEIJING AEROSPACE INST OF THE LONG MARCH VEHICLE
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