I/O System Four全数字遥测地震仪的性能、特点及与以往地震仪器的对比

地震勘探仪器发展到现在经历了五代的变化。从技术上说，经历了从模拟到数字，从电子管到晶体管、集成电路、超大规模集成电路，从纸记录到模拟条式磁带记录、盒式数字磁带记录，从仪器系统结构上的集中式系统到分布式遥测系统，从模拟信号的记录到二进制数字定点记录、到14位浮点数字记录、再到24位定点记录的发展过程。文中较详细地介绍了I／O System Four全数字遥测地震仪系统的结构组成、技术性能、特点、施工生产方面的使用要求、环境适应性。重点将全数字遥测地震仪及其使用的新型数字传感器与以往传统仪器及其使用的模拟检波器进行了对比，特别是与目前国内外仍在大批使用的24位遥测地震仪相比具有的优势、所得地震资料的品质等方面的研究等等。

Property and characters of I/O System Four full digital telemetry seismograph and compare with former seismographs

The development of seismographs has experienced the changes of five generations up-to-now.Technically,it has experienced the development process from analog to digital,electric tube to transistor,to integrated circuit and to super-large-scale integrated circuit,paper record to analog magnetic tape record and to boxed digital magnetic tape record;in structure of seismograph system,from centralized system to distributed telemetry system,from recording of analog signal to binary numeric fixed-point record,to 14-bit float-point numeric record and again to 24-bit fixed-point record.The paper introduced in detail the structure,technical property and characters,demand on use in production and adaptability to environment of I/O System Four numeric telemetry seismograph system. The study put the emphasis on the correlation of the digital telemetry seismograph and new type of digital sensor used with former traditional seismographs and analog geophone used,especially on the advantages and high quality acquired seismic data in comparison with 24-bit telemetry seismograph currently widely used abroad and at home.