改进消除温度对 CG-2型重力仪影响的装置/

IMPROVEMENT OF THE DEVICE FOR REDUCING TEMPERATURE EFFECT ON A CG-2 GRAVIMETER

摘要: 本文叙述采用改进后的双层恒温箱控制 CG-2型重力仪的工作环境的温度,对温度干扰问题做进一步的观测实验.在仪器室年温差仍为10℃左右变化的条件下,当恒温精度提高到25℃0.02℃时,消除了用恒温精度为24℃0.15℃的可控硅电热单层恒温所获得的资料所存在有一年为周期的,幅度可达500微伽的缓慢变化,并着重介绍了改进恒温装置的制作原理.

Abstract: An improvement by using double thermostat for the device of reducing temperature effect on the CG-2 gravimeter has been described. Further tests were made to remove the slow yearly variation of amplitude 500 microgals of gravity by raising the precision of teme-prature control from 24℃ 0.15 in the case of single layer SCR thermostat to 25℃0.02, under the same condition of yearly room temperature change of 10℃. The paper gives also the constructional details of the device.

[1] 钱瘦石,温度变化对CG——2型重力仪的影响,地球物理学报,22,1, 1979.