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一引言为了充分利用海底地层的回波信息,在有效的记录纸面上最大限度的记录下海底地层的剖面图象,因而在地层剖面仪记录器中均采用一种水深移位的装置。目前我国使用较多的日本进口SP—Ⅲ浅地层剖面仪记录器中[1]就是利用机械换档的方式满足“水深移位”的。而本文要介绍的则是一种全部采用国产集成电路实现此目的的数字电子移位技术。它已成功地应用在荣获82年上海市科技成果一等奖的“QPY—1”浅地层剖面仪记录器中。它具有制作调试方便,移位精度高,尤其是长期使用无机械磨损误差,操作灵活等特点。下面将它的工作原理作一说明,并同时给出实施方框图。
I. INTRODUCTION In order to make full use of the echo information of the submarine formations, the sectional images of the submarine formations are recorded to the maximum extent on the effective recording paper surface. Therefore, a device for water depth displacement is adopted in the formation profile recorder. At present, China’s use of more imported Japanese SP-III shallow profiler recorder [1] is the use of mechanical shift to meet the “water depth shift.” This article is to introduce a full use of domestic integrated circuits for this purpose digital electronic shift technology. It has been successfully used in the “QPY-1” shallow formation profiler, which won the first prize of the Shanghai Science and Technology Achievement Award in 1982. It has the convenience of making debugging, high shift accuracy, especially the long-term use of mechanical wear error, flexible operation and so on. Here’s a description of how it works, and at the same time gives the implementation of the block diagram.