A New Model of Ocean Bottom Magnetometer
A New Model of Ocean Bottom Magnetometer
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新型海底磁力计
DOI：
10.5636/jgg.35.407
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发表时间：
1983
期刊：
影响因子：
--
通讯作者：
H. Utada
中科院分区：
文献类型：
--
作者：
J. Segawa;Y. Hamano;T. Yukutake;H. Utada
一个用于海底的三轴磁通门磁力仪已经建成并进行了测试。这种磁力计体积小，易于操作，安装在一个密封的玻璃球中。该仪器配有定时释放装置，可自由下落安装和自动恢复。最长测量周期为60天，采样时间为3分钟，测量精度为±0.8nT。这相当于使用16位AD转换器进行数字转换时不可避免的±1个最低有效位的误差。
A triaxial fluxgate magnetometer for use on the sea floor has been built and tested. This magnetometer, which is small and easy to handle, is housed in a pressure-tight glass sphere. The instrument is equipped with a timed release which enables free-fall installation and automatic recovery. Maximum period of measurement is 60 days with 3-minute samplings and the accuracy of the measurement is ±0.8nT. This corresponds to the error of ±1 least significant bit unavoidable in digital conversion using a 16-bit AD converter.