Calibration and sensitivity of a gravity detector

Details Calibration and sensitivity of a gravity detector Calibration and sensitivity of a gravity detector

Dec 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976azh....53.1330g&link_type=abstract

Astronomicheskii Zhurnal, vol. 53, Nov.-Dec. 1976, p. 1330-1337. In Russian.

Astronomy and Astrophysics

Astronomy

Calibrating, Gravimetry, Measuring Instruments, Sensitivity, Displacement Measurement, Gravitational Fields, High Frequencies, Seismographs, Signal Detection

Scientific paper

A calibration technique is described for a gravity detector that can operate as a gravimeter to detect high-frequency (in the range around 1177 Hz) variations in earth's gravity or as a seismograph to detect vertical ground displacements in the same frequency range. In accordance with this calibration technique, the averaged sensitivity of the gravimeter is found to be about 10 to the -11th power g; the preliminary unaveraged sensitivity of the seismograph is an order of magnitude lower. A control experiment is discussed which indicates that signals obtained with the high-frequency gravimeter cannot be due to vertical ground displacements or the effect of electromagnetic radiation on the device.

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