公开(公告)号：US20150027229A1

公开(公告)日：2015-01-29

申请号：US13950747

申请日：2013-07-25

Applicant: SERCEL, INC.

Inventor： Marvin K. AMERINE

IPC: G01V1/24

CPC classification number: G01V1/24 ,  G01D3/028 ,  G01V1/162 ,  G01V1/182 ,  G01V1/36 ,  G01V2210/27

Abstract: A seismic sensor detects a characteristic of a medium during a seismic survey. The seismic sensor includes a casing; a magnet located inside the casing; a coil assembly located inside the casing, wherein the coil assembly moves relative to the magnet; and a temperature-sensitive device connected to terminals of the coil assembly and configured to improve the damping. The magnet and the coil assembly produce some intrinsic damping and the additional damping introduced by the temperature-sensitive device is selected to counterbalance the temperature-dependent intrinsic damping so that a phase of a recorded seismic signal is compensated for temperature induced magnetic field changes.

Abstract translation: 地震传感器在地震勘测期间检测介质的特性。 地震传感器包括壳体; 位于壳体内的磁体; 位于所述壳体内部的线圈组件，其中所述线圈组件相对于所述磁体移动; 以及连接到线圈组件的端子并被配置为改善阻尼的温度敏感设备。 磁体和线圈组件产生一些固有阻尼，并且选择由温度敏感装置引入的附加阻尼以平衡温度依赖的固有阻尼，使得记录的地震信号的相位补偿温度感应磁场变化。