This paper develops a DSP - based Downhole Video (DHV) acquisition system and the approach to compress the data, which is suitable in high temperature conditions.

提出了一种基于DSP的井下电视(DHV)视频采集系统及数据压缩方法，适合较高温度下的工作环境。

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After a brief introduction of the hardware frame for downhole motors test table, the design method of performance test data acquisition system is described.

在介绍螺杆钻具试验台硬件框架的基础上，着重阐述了基于计算机的性能测试数据采集系统的实现方法和软件设计。

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JW-5 borehole em system is a new instrument for downhole (or underground) geophysical survey, which consists of a data acquisition unite and a data processing unit.

JW - 5地下电磁波探测系统是一种新型设备，它由数据采集系统和数据处理系统组成。

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