Vibration sensor examination and calibrating device and usage method

Abstract

The invention relates to a vibration sensor examination and calibrating device comprising a computer, a dynamic signal analyzer, a power amplifier, a shake table, a standard vibration sensor, a signalconverter and a sensor mounting rack; the dynamic signal analyzer comprises at least 1 signal output end and 2 signal input ends, wherein one signal input end is connected with the computer through anetwork twisted pair, and the signal output end is connected with the power amplifier; the output end of the power amplifier is connected with the input end of the shake table; the sensor mounting rack is arranged on the table surface of the shake table; the standard vibration sensor is arranged on the sensor mounting rack; the output end of the standard vibration sensor is connected with the input end of the signal converter through a low noise shield cable; the signal converter has two input ends and 2 output ends; the output ends and input ends of the signal converter are respectively connected with the input end CH1 and input end CH2 of the dynamic signal analyzer. The invention also relates to a usage method of the vibration sensor examination and calibrating device.

Description

technical field [0001] The invention relates to a sensor inspection and calibration device and method, in particular to a vibration sensor inspection and calibration device and method. Background technique [0002] The vibration sensor is used to test the vibration signal of the specimen in the mechanical environment test, or to measure the vibration signal of the specimen in other vibration environments, and obtain the structural response of the specimen through the vibration signal obtained from the test. The vibration sensor needs to be inspected before the vibration sensor is used, and the vibration sensor needs to be calibrated after the vibration sensor exceeds the inspection period to ensure the accuracy and legality of the vibration sensor test. The existing vibration sensor inspection and calibration devices and calibration methods often use the comparison method, mainly composed of signal generators, power amplifiers, vibration tables, standard sensors, signal adap...

AI Technical Summary

Problems solved by technology

The existing technology is only suitable for testing and calibrating the sensitivity of normal vibration sensors, and cannot obtain the frequency-domain broadband performance of the vibration sensor under the excitation of a fixed-frequency sinusoidal signal, and cannot obtain the dynamic characteristics of the vibration sensor under the excitation of a random signal

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