Absolute calibration device of the vibration sensor

Abstract

Vibration sensor calibration is performed using the absolute calibration method and the comparison calibration method. The comparative calibration method is used to take a carefully calibrated benchmark to the measured sensor and the vibration sensor for a contrast test, the use of standard sensors requires regular inspection to traceability to national standards to ensure the reliability and accuracy of dissemination. From the measurement perspective, using the absolute calibration method to calibrate a laser interference vibration acceleration sensor can achieve high precision, wide field, high reliability calibration to ensure the sensor of high accuracy, vibration signal high reliability is of great significance. The vibration method of absolute calibration is based on laser interference technology research, put forward in the development of the laser absolute method based on the technology of vibration calibration device, a further optimised method of the absolute calibration device, the mathematical model is used to improve the technical indicators and to provide reliable technical guarantee for vibration transducer calibration.