Method of correcting measurement error of measuring device e.g. ball bearing, involves switching input of converter to sensor, and correcting converter formed digital measurement value by difference of converter value and calibrator value

摘要

The method involves starting a test procedure for testing the analog-digital (A/D) converter (7) by a software (10). The input (CH1) of A/D converter is switched to a calibrator (6) which generates a predetermined analog signal from the A/D converter. The difference between the value generated by A/D converter and the predetermined value generated by the calibrator is determined. The input of the A/D converter is switched to the sensor (1), and the A/D converter formed digital measurement value is corrected by the difference. An independent claim is included for device for correcting measurement error of measuring device.