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丹麦生产的拉苛(LaCour)型水平分量 H 磁变仪(下称 H 仪),具有工艺精密、结构合理、材料纯净以及仪器性能稳定等优点。该 H 仪由香港台移交给琼中台之后,在安装使用中尚存在一个缺点,即悬挂系统中的管子较长,而且狭小,三面镜不能通过,磁系中只能用单面镜反射记录。这个问题的存在致使地处低纬区的琼中台,要记录下地磁场 H 分量的巨大变化幅度产生很大困难。解决的办法之一是用较粗的吊丝以降低 H 仪的灵敏度。但这种适当规格的石英丝目前国内难以得到。即使能够解决,也对变化磁场的研究工作造成损失。
Denmark produces LaCour horizontal component H magnetometer (hereinafter referred to as H instrument), with a sophisticated technology, reasonable structure, material purity and instrument performance and stability advantages. After the H instrument was handed over to Qiongzhong Tai by Hong Kong and Taiwan, there was a shortcoming in installation and use. That is, the pipe in the suspension system was long and narrow. The three mirrors could not pass. . The existence of this problem has caused Qiongzhong Station in the low latitude region to record great changes in the H component of the Earth’s magnetic field with great difficulty. One of the solutions is to use a thicker wire to reduce the sensitivity of the H-meter. However, this appropriate specification of quartz wire is hard to obtain domestically. Even if it can be solved, but also on the magnetic field changes caused by the loss of research.