Performance Analysis of Infrasound Sensor InSAS2008

Hao Nan Feng; Yi Chun Yang

doi:10.4028/www.scientific.net/AMR.591-593.201

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 591-593Performance Analysis of Infrasound Sensor...

Performance Analysis of Infrasound Sensor InSAS2008

Abstract:

It is known that earthquakes generate infrasound. The frequency spectra of the infrasound signals associated with earthquakes are concentrated within a wide frequency range (0.002-0.02 Hz), and have spectral tail extending up to the frequencies 0.1-1 Hz. Therefore, the dynamic characteristics of infrasound sensors should be chosen so as to capture main features of such signals. In this paper, the characteristics of infrasound sensor InSAS2008 developed by Institute of acoustics, Chinese academy of sciences, are described. Its performance indicators are listed and its frequency response is analyzed. The special construction in the mechanical design is developed to overcome drift problem caused by temperature variations. In addition, the infrasound sensor is not affected by nonlinear effects. The calibration results show that infrasound sensor works within a wide and flat frequency band.

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Periodical:

Advanced Materials Research (Volumes 591-593)

Pages:

201-204

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.591-593.201

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Online since:

November 2012

Authors:

Hao Nan Feng, Yi Chun Yang

Keywords:

Calibration, Frequency Response, Infrasound Sensor

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