Title of article :
Readout system and predicted performance of a low-noise low-frequency horizontal accelerometer
Author/Authors :
Bertolini، نويسنده , , Alessandro and DeSalvo، نويسنده , , Riccardo and Fidecaro، نويسنده , , Francesco and Francesconi، نويسنده , , Mario and Marka، نويسنده , , Szabolcs and Sannibale، نويسنده , , Virginio and Simonetti، نويسنده , , Duccio and Takamori، نويسنده , , Akiteru and Tariq، نويسنده , , Hareem، نويسنده ,
Pages :
8
From page :
579
To page :
586
Abstract :
The readout system of a new very low noise low-frequency, force-feedback accelerometer is presented. The horizontal accelerometer carrying this sensor has been designed to be integrated in an advanced seismic isolation system for interferometric gravitational wave detectors. To make it suitable for ultra-high-vacuum operation and to reduce the probability of failures of the in-vacuum components, the accelerometer is equipped with a high-resolution capacitance sensor fully driven by remote signal conditioning electronics. The instrumentʹs performance is not compromised by cabling lengths of up to 15 m. The accelerometer, equipped with this readout scheme, should be able to detect the inertial displacement of a platform with a root-mean-square noise less than 1 nm, integrated over all the frequencies above 0.01 Hz. We plan to implement the same readout scheme in a companion vertical sensor now being designed.
Keywords :
Accelerometer , Capacitance sensor , Matching transformer , flexure
Journal title :
Astroparticle Physics
Record number :
2029240
Link To Document :
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