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Proceedings Paper

Small inertial measurement units: sources of error and limitations on accuracy
Author(s): Michael E. Hoenk
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Paper Abstract

Limits on the precision of small accelerometers for inertial measurement units are enumerated and discussed. Scaling laws and errors which affect the precision are discussed in terms of tradeoffs between size, sensitivity, and cost. Thermal noise and displacement transducer sensitivity constrain the size of an accelerometer for a given sensitivity, and error correction for inertial navigation leads to a tradeoff between cost and precision. Emphasis is placed on micromachined silicon accelerometers as a potential technology for manufacturing low cost, precision sensors, and sample calculations are given to illustrate the principles.

Paper Details

Date Published: 13 July 1994
PDF: 12 pages
Proc. SPIE 2220, Sensing, Imaging, and Vision for Control and Guidance of Aerospace Vehicles, (13 July 1994); doi: 10.1117/12.179603
Show Author Affiliations
Michael E. Hoenk, Jet Propulsion Lab. (United States)


Published in SPIE Proceedings Vol. 2220:
Sensing, Imaging, and Vision for Control and Guidance of Aerospace Vehicles
Jacques G. Verly; Sharon S. Welch, Editor(s)

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