Note: Rotaphone, a new self-calibrated six-degree-of-freedom seismic sensor

Review of Scientific Instruments
By: , and 



We have developed and tested (calibration, linearity, and cross-axis errors) a new six-degree-of-freedom mechanical seismic sensor for collocated measurements of three translational and three rotational ground motion velocity components. The device consists of standard geophones arranged in parallel pairs to detect spatial gradients. The instrument operates in a high-frequency range (above the natural frequency of the geophones, 4.5 Hz). Its theoretical sensitivity limit in this range is 10(-9) m/s in ground velocity and 10(-9) rad/s in rotation rate. Small size and weight, and easy installation and maintenance make the instrument useful for local-earthquake recording and seismic prospecting.
Publication type Article
Publication Subtype Journal Article
Title Note: Rotaphone, a new self-calibrated six-degree-of-freedom seismic sensor
Series title Review of Scientific Instruments
DOI 10.1063/1.4747713
Volume 83
Issue 8
Year Published 2012
Language English
Publisher American Institute of Physics
Contributing office(s) Earthquake Hazards Program
Description 086108; 3 p.
Larger Work Type Article
Larger Work Subtype Journal Article
Larger Work Title Review of Scientific Instruments
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