数字地震仪一种新型单极性A/D转换器的设计

A NEWLY DESIGNED MONOPOLAR A/D CONVERTER USED IN DIGITAL SEISMIC RECORDER

大庆石油学院

Daqing Petroleum Institute

在实现地震信息数字化记录过程中,将模拟子样电压转换为二进制代码的A/D转换起着关键作用.本文吸取目前数字地震仪A/D转换器的优点,设计了一种新型的A/D转换器,它具有单极性、电路简单、原码输出等优点,完全能适应地震信息的数字化转换过程.

In the implementation of digital seismic data acquisition,the A/D converter,the role of which is to convert the analogue subsample into the binary code,plays a very important role. By taking the merits of the A/D converter widely used in the digital seismic recorder at present ,a new A/D converter was successfully designed at last. The newly designed converter has the advantage of simple in circuit,monopolar,source code output,etc. ,and is completely suitable for the seismic information-digital conversion.