Based on the cassette tape readings acquired from a temporary seismic network of 4 digiatal DCS-302 seismometers,the detected aftershocks are determined of the M 6.1 Luquan earthquake which occurred on 18 April 1985 in Luquan County of Yunnan Province.
Based on the three-component accelerograms, recorded at near-field distance by a temporary seismic network consisting of digital cassette tape reacording accelerographs, the focal mechanisms of three aftershocks of the April 18, 1985, Luquan, Yunnan Province, China, earthquake of magnitude Ms=6.1, are calculated using moment tensor inversion technique.
This paper introduces the hardware and software design of a new type interface for the cassette tape recorder which laying Particular stress on software imPlementation, discusses its operating Principle, the hardw are im Plementation circuit, the software designing and im-Plementing Process on the MCS96 series target Prototype.
DZSS-1 type digital seismograph is developed for deep explosion siesmic sunding. Each seismograph consists of CDJ-6B, data acquisition system, digital cassette tape recorder, digital quatz clock and playback.
The former data recorder of LRS 16A Seismoscope System was TeLex6253 cassette tape subsystem,with the development of technology,it is possible to replace TeLex6253 by 9480 cassette tape subsystem.
L RS— 16 A地震系统原以 Te L ex6 2 5 3盘式带子系统进行记录 ,随着技术的发展 ,用 34 80盒式带子系统取代 Te L ex6 2 5 3盘式带子系统成为可能。
Signals from a gimbal-mounted 3-component geophone and a hydrophone are frequency modulated and mixed with clock and flutter correction signals before being recorded on a standard speed cassette tape recorder, with one hour of recording time.
The POBS is a self-contained package containing a vertical and single horizontal seismometer, hydrophone, cassette tape recorder, and pre-set timed release.
This paper describes the DJS-053 microcomputer development system, the first sophisticated microcomputer system ever designed and made in China. This is a high-performance system based on Intel 8085A CPU, which provides 64K RAM, and eight-level priority interrupts. This system contains all necessary control and data circuitry to interface with CRT, standard ASCII keyboard, matrix line printer, EPROM programmer, dual single side double density floppy disk drive, cassette tape recorder, etc. Power...
The problems of using China-made microprocessor of model 051 to control a CRT display of telemetry data in electric power systems are discussed, The CRT controller circuit and display program flowchart are presented. A circuit for writing EPROM and an all software cassette tape recording scheme are also introduced.
This paper describes a dassroom-information-processing interface circuit made of Chinese-designed IC chips. When it is connected with a Response Analyzer, it can store Information in a cassette tape as a buffer memory, and pass it to a Model SYM-1 microcomputer for data analysis wheaever necessary. In addition to the hardware, this paper also deals with data-collecting and processing programmes.