Low noise wideband accelerometer using an inductive displacement sensor

• DOI: 10.1063/1.1145608
• Publication Date: 2002-07-26T12:43:06Z
• Authors: S. Braccini; C. Bradaschia; R. Del Fabbro; A. Di Virgilio; I. Ferrante; F. Fidecaro; R. Flaminio; A. Gennai; A. Giassi; A. Giazotto; G. Gorini; G. Losurdo; M. Morganti; F. Palla; F. Paoletti; D. Passuello; R. Poggiani; G. Torelli; Z. Zhang
• Keywords: Wideband

A wideband (dc to 500 Hz) low noise accelerometer has been developed. It makes use of a suspended mass whose displacement relative the supporting structure is sensed by linear variable differential transformer. works both in horizontal and vertical direction. The electronics connected mechanical through 12 m long cables. spectral sensitivity 7×10−10 (m/s2)/√Hz below 6 Hz. will be used perform an inertial damping resonances suspension mirrors VIRGO, interferometric antenna for gravitational waves detection.