单稳态触发器在GCSLink 2000同步器与428XL联机中的应用  

Application of Monostable Trigger in GCSLink 2000 and 428XL Online System

作　　者：崔树起 贺俊琪 徐宏田 王维田 CUI Shuqi;HE Junqi;XU Hongtian;WANG Weitian(Equipment Service Center of Daqing 2 nd Geophysical Exploration Company of BGP,Songyuan,Jilin 138000,China;Acquisition Technical Center of BGP,Zhuozhou,Hebei 071000,China;Equipment Service Center of BGP,Zhuozhou,Hebei 071000,China)

机构地区：[1]东方地球物理勘探有限责任公司大庆物探二公司装备服务中心,吉林松原138000 [2]东方地球物理勘探有限责任公司采集技术中心,河北涿州071000 [3]东方地球物理勘探有限责任公司装备服务中心,河北涿州071000

出　　处：《石油管材与仪器》2023年第5期74-77,共4页Petroleum Tubular Goods & Instruments

摘　　要：针对气枪震源在导航模式作业时GCSLink同步控制器外部GO信号不能直接启动428XL仪器的问题,对比了3种方案的优劣,提出了使用单稳态触发器的解决途径。采用NE555时基芯片搭建脉冲调整电路,将GCSLink发来的外部GO信号脉宽调整到能够自动触发428XL仪器的标准,实现外部GO信号启动仪器。经某东非项目实际生产证实,所提出的方案成功实现了两者的顺利联机,使气枪震源在导航模式下连续放炮并自动启动428XL仪器接收数据。A solution using a monostable trigger is proposed to solve the issue of the external GO signal from GCSLink synchronous controller being unable to directly start 428XL instrument when operating in navigation mode with airgun sources based on comparation among three potential technical solutions.An NE555 timer chip is used to build a pulse adjustment circuit to adjust the pulse width of the external GO signal sent by GCSLink to the standard level that can automatically trigger the 428XL instrument,thus enabling the external GO signal to start the instrument.The actual production in a project in East Africa proved that the solution successfully enabled the airgun source to continuously fire and automatically start the 428XL instrument to receive data in navigation mode.

关 键 词：单稳态触发器 NE555时基芯片 气枪震源 GCSLink同步控制器 428XL地震仪 

分 类 号：P631.43[天文地球—地质矿产勘探]