Demonstration of Angular Velocity Calibration System Traceable to Primary Angle Standard

- Testing Sensitivity and Nonlinearity of Commercial Gyroscopes -

Abstract

Gyroscope is widely spreading in automobile technologies such as Electronic Stability Control (ESC) and crash testing devices. Traceability for test equipment of gyroscopes is discussed and will soon be required in the United States, Europe, Japan and other countries. To meet the upcoming calibration needs, we are developing an angularvelocity calibration system based on a self-calibratable rotary encoder (SelfA), which is the same type as national primary angle standard. In this paper, we tested out the developed calibration system by means of three commercial gyroscopes, experimentally ranging up to 300 °/s. The rotating stability and electrical noise is suitable for calibration of the gyroscopes.