论文部分内容阅读
在我国地震地磁观测系统中广泛应用CHD型核旋仪进行地磁场强度测量。这种仪器较之机械式磁力仪,其优点是灵敏度高,工作效率高,操作简便,无太大的零点飘移,可直读地磁场强度。但是,CHD型核旋仪的实际工作温度范围远远超过了原设计指标。为了提高观测资料的质量,弄清CHD型核旋仪在不同温度条件下的工作性能,我们在实验室将CHD型核旋仪(不包括探头部分)放在高、低温箱里,测定了晶体部分BW_3型石英
In our country earthquakes magnetic observation system widely used CHD-type nuclear rotation instrument for geomagnetic field strength measurement. Compared with the mechanical magnetometer, this kind of instrument has the advantages of high sensitivity, high working efficiency, easy operation, zero drift and direct magnetic field strength. However, the actual operating temperature range of CHD-type nuclear spin-up far exceeds the original design specifications. In order to improve the quality of observational data and find out the performance of CHD-type nuclear-spinning apparatus under different temperature conditions, we placed the CHD-type nuclear-based gyroscope (excluding the probe part) in the high and low temperature chambers in the laboratory and measured the crystal Part BW_3 type quartz