一种井下检波器测试仪的设计

Design of a test instrument for underground geophone

地震检波器位于地震数据采集仪器的前端,它的性能决定了获取地震数据的准确性,因此必须对检波器性能进行定期检测和记录。针对井下检波器参数的测试问题,在VSP地震数据采集系统中集成了一套井下检波器测试仪,通过地面上位机的软件控制,将参数直接传输到地面并保存。实验表明:该测试仪对动圈式检波器各项参数的测试指标处于出厂误差范围之内,且通过地面上位机的控制,完成了井下检波器的测试。

The geophone is located at the front end of the seismic data acquisition instrument. whose performance determines the accuracy of acquisition of seismic data by the acquisition instrument,Therefore, the performance of the geophone must be checked and recorded regularly. In the case of not changing the mechanical size of the downhole parts of the original instrument, software control through the ground computer,the parameters of the geophone are transmitted directly to the ground through the downhole bus and recorded and stored. Experiments show that the test indicator of the detector is within the range of factory error, and control through the ground computer, the test of the underground geophone has been completed and meet the needs of the project.