Research on bulging plate of scaler for horizontal pendulum tiltmeter

摘要

The calibration of tiltmeter’s scale value is very important. Without a correct calibration, the observation is of little application significance. At present, a ‘direct calibration’ method (ZHU, 1993) is used, which gives a known displacement value on the instrument and then measures the output signals of the instrument under such a condition. However, the known displacement value must be very accurate.