引言海洋质子梯度仪,是七十年代初在质子磁力仪基础上发展起来的一种新型海洋磁测仪器。它由两台各具探头的质子磁力仪和一个微分计算器(梯度换算器)组成。可与地震、重力等仪器一起安装在综合性地球物理调查船上,以增强测量能力。工作时,梯度仪的两个探头用电缆一前一后拖曳于船后,前者称“从探头”、后者称主探头。“从探头”至船尾的距离要求为船体长的五倍,采用四芯电缆连接。从探头到主探头有一固定距离,使用两芯电缆 Introduction Oceanic proton gradient instrument is a new type of ocean magnetic survey instrument developed on the basis of proton magnetometer in the early seventies. It consists of two proton magnetometers each with a probe and a differential calculator (gradient converter). With seismic, gravity and other equipment installed in a comprehensive survey of geophysical vessels to enhance the measurement capability. Work, the gradient of the two probes one after another with a cable towed behind the ship, the former said “from the probe ”, which said the main probe. The distance from the probe to the stern is five times the length of the hull, using a four-core cable. There is a fixed distance from the probe to the main probe, using a two-core cable