ACHIEVEMENT OF HIGHACCURACY DATA ACQUISITION OF YRY BOREHOLE STRAIN METER
Deng Tao 1) ;Liao Chengwang 1,2) ;Tang Xiaolin 1) ; and Chen Liang 1)
1)Institute of Seismology, CEA, Wuhan 4300712)Crustal Movement Laboratory, Wuhan 430071
Abstract According to the demand of seismic precursor instruments——YRY borehole strainmeter, the data acquisition system with the 6 1/2 digit resolution system is introduced. Taking 24-bits ΣΔADC ADC1210 as core component, the circuit design, the choice of high performance periphery devices, the topological construction of ground and program for high accuracy purpose are analyzed. The test results and seismic station observation have proved that the system can meet the requirements.
Key words ：
24-bits Σ-ΔADC
ADS1210
seismic precursor instrument
borehole strain meter
data acquisition
Received: 01 January 1900
Corresponding Authors:
Deng Tao
Cite this article:
Deng Tao ,Liao Chengwang,Tang Xiaolin et al. ACHIEVEMENT OF HIGHACCURACY DATA ACQUISITION OF YRY BOREHOLE STRAIN METER[J]. , 2007, 27(3): 118-122.
Deng Tao ,Liao Chengwang,Tang Xiaolin et al. ACHIEVEMENT OF HIGHACCURACY DATA ACQUISITION OF YRY BOREHOLE STRAIN METER[J]. jgg, 2007, 27(3): 118-122.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2007/V27/I3/118
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