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Title: Characteristics evolution of indigenously designed and developed tri-axial force balance accelerometer
Authors: Sharma, B K
Kumar, Satish
Mittal, S K
Shamshi, M A
Keywords: Force balanced accelerometer
Transduction methods
Issue Date: Jul-2006
Publisher: CSIR
Abstract: This paper describes indigenously designed and developed tri-axial Force Balanced Accelerometer (FBA) using variable capacitance transduction and electromagnetic feedback. Accelerometer is a highly sensitive, low frequency seismic sensor characterized by rugged construction and proven reliability. It has been designed and developed for ±1g full-scale range with 50 Hz natural frequency mainly for seismic, structural, aerospace and some commercial applications. In a single unit, three accelerometers are orthogonally mounted on a plate and housed in a case for recording all the three components of motion. Characteristics evolution of a natural frequency, damping and noise level, have been done, tested and explained. During designing, most of the technical specifications have been considered for low frequency band from DC to 200Hz applications. Accelerometer is suitable for strong motion recording purpose.
Page(s): 574-577
ISSN: 0975-1084 (Online); 0022-4456 (Print)
Source:JSIR Vol.65(07) [July 2006]

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