I want to know the procedure for calibration of a strain gauge extensometer. Is it as per ASTM E83? But this specification is for verification and classifying the extensometer grade A, B1 or B2 etc. How to calibrate the existing extensometer.
We are calibrating by using a calibrator and mounting the extensometer on it and then monitor the extensometer reading on computer by increasing the length and checking whether it is matching it or not or what is the error. Is this right?