摘要
本文对拉科斯特G型重力仪特性、零漂特征、格值误差、测量精度以及《地震重力重复测量规范》中有关自差互差等问题作了讨论。认为:拉科斯特重力仪具有性能稳定,零漂小,观测精度高的优点,各仪器之间的系统误差不明显,格值误差极小;规范中规定的30×10^(-8)m/s^2自差和3S×10^(-8)m/s^2互差偏大。建议改为20×10^(-8)m/s^2和25×10^(-8)m/s^2为宜。
In this paper, the instrument characteristic, drift feature and scale error are discussed, and the self-difference and mutual-differenee stipulated by 《The Canon of repeated seismological gravity measurement》are studied. The results are abtained as follows:1. LCR G gravimeter is a kind of stable instrument with small drift and high observed accuracy.2. The systematic errors among gravimeters is not significant and the scale error is smaller as well.3. The self-defference(30×10^(-8)m/s^2) and mutual-difference (35×10^(-8)m/s^2) in the canon is a little larger.We think that the better values are 20×10^(-8)m/s^2 and 25×10^(-8)m/s^2.
出处
《地壳形变与地震》
CSCD
1990年第4期83-92,共10页
Crustal Deformation and Earthquake
