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Proceedings Paper

Very low frequency/high sensitivity triaxial monolithic inertial sensor
Author(s): F. Acernese; R. De Rosa; G. Giordano; R. Romano; F. Barone
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Paper Abstract

This paper describes a new mechanical implementation of a triaxial sensor, configurable as seismometer and/or as accelerometer, consisting of three one-dimensional monolithic FP sensors, suitably geometrically positioned. The triaxial sensor is, therefore, compact, light, scalable, tunable instrument (frequency < 100mHz), with large band (10−7 Hz − 10Hz), high quality factor (Q > 2500 in air) with good immunity to environmental noises, guaranteed by an integrated laser optical readout. The measured sensitivity curve is in very good agreement with the theoretical ones (10−12m/√Hz) in the band (0.1 ÷ 10Hz). Typical applications are in the field of earthquake engineering, geophysics, civil engineering and in all applications requiring large band-low frequency performances coupled with high sensitivities.

Paper Details

Date Published: 8 March 2014
PDF: 11 pages
Proc. SPIE 9061, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2014, 90612H (8 March 2014); doi: 10.1117/12.2043595
Show Author Affiliations
F. Acernese, Univ. degli Studi di Salerno (Italy)
Istituto Nazionale di Fisica Nucleare (Italy)
R. De Rosa, Istituto Nazionale di Fisica Nucleare (Italy)
Univ. degli Studi di Napoli Federico II (Italy)
G. Giordano, Univ. degli Studi di Salerno (Italy)
R. Romano, Univ. degli Studi di Salerno (Italy)
Istituto Nazionale di Fisica Nucleare (Italy)
F. Barone, Univ. degli Studi di Salerno (Italy)
Istituto Nazionale di Fisica Nucleare (Italy)


Published in SPIE Proceedings Vol. 9061:
Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2014
Jerome P. Lynch; Kon-Well Wang; Hoon Sohn, Editor(s)

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