The design of high precision double buffer MEMS acceleration seismometer

Author

Ping Gan ; Huan Yu ; Zhuo Chen ; Dong Lianli ; Xiao-Qing Shen ; Ming-Yan Yu ; Yu Zhang ; Cai-Lan Zeng ; Xiao-Song Zhang

Author_Institution

State Key Lab. of Coal Mine Disatser Dynamics & Control, Chongqing Univ., Chongqing, China

fYear

2014

Firstpage

348

Lastpage

352

Abstract

In this paper, a new type of high precision double buffered MEMS acceleration seismometer is introduced. The MEMS sensor technology, Σ- delta 24 bits A/D conversion technology are adopted in our method. Furthermore, FPGA extended SDRAM is utilized for the implementation. Experiments show that the detector performance compared with France´s DSU3 Sercel co, frequency response reaches 0-784Hz; Power consumption is 160 mV, which can realize the large volume of 128 Mbit cache. The dynamic range and band width has been greatly improved than traditional receiver, and the ability to resist electromagnetic interference is enhanced.

Keywords

DRAM chips; accelerometers; electromagnetic compatibility; field programmable gate arrays; microsensors; seismometers; sigma-delta modulation; vibration measurement; FPGA extended SDRAM; MEMS sensor technology; acceleration seismometer; analog-digital converter; cache staorage; double buffer MEMS; electromagnetic interference; frequency 0 Hz to 784 Hz; high precision MEMS; sigma-delta converter; storage capacity 128 Mbit; voltage 160 mV; Acceleration; Detectors; Force; Micromechanical devices; SDRAM; Seismic waves; Vibrations; MEMS sensors; Seismometer; double cache; high-precision;

fLanguage

English

Publisher

ieee

Conference_Titel

Wavelet Active Media Technology and Information Processing (ICCWAMTIP), 2014 11th International Computer Conference on

Print_ISBN

978-1-4799-7207-4

Type

conf

DOI

10.1109/ICCWAMTIP.2014.7073424

Filename

7073424