Laser Interferometer and Reciprocity Calibration of Accelerometers Using the NIST Super Shaker

Published

November 1, 1998

Author(s)

Beverly F. Payne

Abstract

The development of the NIST Super Shaker permits calibration of accelerometers by two independent and absolute methods on the same shaker. Minimizing the uncertainty of reciprocity calibrations imposes stringent requirements for distortion and cross-axis motion. Laser interferometer calibrations require very low coupling between the shaker and the interferometer components. The design of the Super Shaker provides for very low distortion and cross-motion with very low mechanical coupling between the shaker and optical components. The shaker is equipped with dual coils and two retractable magnets to provide for reciprocity measurements without attaching a driving shaker. These features enhance the convenience with which the Super Shaker can be used to perform both reciprocity and laser interferometer calibrations. This paper describes the shaker and calibration system and gives a comparison of calibration results from the two methods.

Proceedings Title

Proceeding of SPIE International Conference on Vibration Measurements by Laser Techniques: Advances and Applications

Volume

3411

Conference Dates

June 16-19, 1998

Conference Location

Ancona, IT

Conference Title

3rd International Conference on Vibration Measurements by Laser Techniques: Advances and Applications

Pub Type

Conferences

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Keywords

Accelerometer, Reciprocity calibration, Super-Shaker, Vibration

Citation

Payne, B. (1998), Laser Interferometer and Reciprocity Calibration of Accelerometers Using the NIST Super Shaker, Proceeding of SPIE International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, Ancona, IT, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=820066 (Accessed April 25, 2024)