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《Journal of Jiling University (Earth Science Edition)》 1984-01
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DEVELOPMENT OE THREE-DIMENSIONAL SEISMIC INSTRUMENT USING P 80C ODED CLOCK FOR PEEP EXPLOSION SEISMIC SOUNDING

Lu Jiao,Qu Zhiyi, Zhao Qunxiong and Li Nuankun  
According to the comparison and analysis of seismic instruments for deep explosion seismic sounding at home and abroad, the Changchun College of Geology has developed the seismic instrument system in collaboration with he Chongqing Geological Instrument Factory.This paper relates the selected project, the solved problems in the development and the characteristics of the instrument.The characteristics of this instrument is as follows.1. Using FM center frequency and deviation in accord with the same kinds of the instruments produced inWest-Europe.2. Using CDJ-6 type three-dimensional seismeter first invented in China.3. The noise of the system and the geophone amplifiers less than 1 vpp.4. Using Sony CFS-65S Cassete Recorders instead of the special tape recorders.5. Two types of coded clocks are developed for users. One is the coded clock composed of MSI of CMOS made in China, the other is P-80 coded clock consisting of the LSI, such as Z-80 CPU,EPROM and CMOSRAM.6. Schmidt circuit with large hysteresis and pulse-average discriminator with one-monostable output are used in the demodulator.S/N ratio is increased from 16db h20db with pilot frequency of wow and flutter compensation.7. The whole system comprises field receiving station and play-back station. The field receiving station comprises a three-dimensional seismeter box, a modulator box ard a cassette recorder box. The playback station comprises cassette recorder bcx, demodulator box and visual-recorder box.
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【Citations】
Chinese Journal Full-text Database 1 Hits
1 LAI MING-HUI XU MIN SHEN MENG-PEI WU MING-CHU YU WU-YUAN FAN XU-BANG(Institute of Geophysics, Academia Sinica);A MAGNETIC TAPE RECORDING SYSTEM FOR DEEP EXPLOSION SEISMIC SOUNDING[J];Chinese Journal of Geophysics;1982-02
【Co-citations】
Chinese Journal Full-text Database 8 Hits
1 LU QI-GU(Institute of Geophysics, State Seismological Bureau)ZHAO BIN(Institute of Geophysics, State Seismologieal Bureau);AN UNATTENDED EXPLOSION OBSERVATION RECORDER[J];Chinese Journal of Geophysics;1984-03
2 TENG JI-WEN SUN KE-ZHONG XIONG SHAO-BAI YAO HONG YIN ZHOU-XUN CHENG LI-FANG XUE CHANG-SHUNTIAN DONG-SHENG HAO TIAN-YAO LAI MING-HUI WU MING-CHU(Institute of Geophysics, Academia Sinica);EXPLOSION SEISMOLOGICAL STUDY FOR VELOCITY DISTRIBUTION AND STRUCTURE OF THE CRUSTAND UPPER MANTLE FROM MAANSHAN TO QIDONG OF THE SOUTHERN PARTS OF CHINA[J];Chinese Journal of Geophysics;1985-02
3 XIONG SIIAO-BAI TENG JI-WBN YIN ZIIOU-XUNLAI MING-HUI HUANG YI-PING (Institute of Geophysics, Academia Sinica);EXPLOSION SEISMOLOGICAL STUDY OF THE STRUCTURE OF THE CRUST AND UPPER MANTLE AT SOUTHERN PART OF THE PANXI TECTONIC BELT[J];Chinese Journal of Geophysics;1986-03
4 SUN KE-ZHONG TENG JI-WEN JIN DONG-MIN ZHENG YE(Institute of Geophysics,Academia Sinica, Beijing);Q-VALUE AND ITS LATERAL VARIATIONS IN PAN-XI TECTONIC BELT[J];Chinese Journal of Geophysics;1987-01
5 ZHENG YE TENG JI-WEN(Institute of Geophysics,Academia Sinica Beijing);THE STRUCTURE OF THE CRUST AND UPPER MANTLE IN THE SHUIXIAN-MAANSHAN ZONE AND SOME CHARACTERISTICS OF THE SOUTH PART OF THE TAN-LU TECTONIC BELT[J];Chinese Journal of Geophysics;1989-06
6 LU JUN PAN WEI-PING ZENG XIAO-XIAN(Institute of Geophysics. Academia Sinica. Beijing. 100101).;FIELD DATA PROCESSING APPARATUS FOR EXPLOSION SEISMOLOGY[J];Chinese Journal of Geophysics;1991-06
7 TENG JI-WEN; XIONG SHAO-BAI; ZHANG ZHONG-JIE(Institute of Geophysics, Academia Sinica, Beijing 100101, China);REVIEW AND PROSPECTS FOR GEOPHYSICAL STUDY OF THE DEEP LITHOSPHERE STRUCTURE AND TECTONICS IN QINGHAI─XIZANG(TIBET) PLATEAU[J];Chinese Journal of Geophysics;1997-S1
8 TENG JI-WEN(Institute of Geophysics,Academia Sinica,Beijing 100101);THE SEISMIC STUDY OF LITHOSPHERIC PHYSICS IN CHINA[J];Chinese Journal of Geophysics;1994-S1
China Proceedings of conference Full-text Database 1 Hits
1 TENG JI-WEN XIONG SHAO-BAI ZHANG ZHONG-JIE (Institute of Geophysics, Academia Sinica, Beijing 100101, China);REVIEW AND PROSPECTS FOR GEOPHYSICAL STUDY OF THE DEEP LITHOSPHERE STRUCTURE AND TECTONICS IN QINGHAI—XIZANG (TIBET) PLATEAU[A];[C];1997
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