Accelerometer sensor noise reduction method and means

Details Accelerometer sensor noise reduction method and means Accelerometer sensor noise reduction method and means

1992-08-31

1994-04-26

Eldred, J. Woodrow

Communications, electrical: acoustic wave systems and devices

Signal transducers

Receivers

367180, 367154, 367901, 181122, 73602, H04R 1700

Patent

active

053073258

ABSTRACT:
In a preferred embodiment, an accelerometer sensor system, including: a housing structure; a first acceleration sensor disposed in the housing structure at a first selected location along the vertical axis of the housing structure, the first acceleration sensor providing a first output; a second acceleration sensor disposed in the housing structure at a second selected location along the vertical axis, the second acceleration sensor providing a second output; and apparatus to combine the first and second outputs of the first and second acceleration sensors such as to simulate the output from a virtual acceleration sensor located at any selected location on the vertical axis, allowing one to reduce noise induced by pitch motion, at any desired frequency or across a desired frequency band.

REFERENCES:
patent: 3736556 (1973-05-01), Barr, Jr.
patent: 4280188 (1981-07-01), Weinstein et al.
patent: 4928263 (1990-05-01), Armstrong et al.
patent: 5128905 (1992-07-01), Arnott

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