Accelerometer including an overall arrangement for reducing temp

Details Accelerometer including an overall arrangement for reducing temp Accelerometer including an overall arrangement for reducing temp

1980-09-08

1982-07-13

Gill, James J.

Measuring and testing

Speed, velocity, or acceleration

Temperature compensator

G01P 1513

Patent

active

043388191

ABSTRACT:
A pendulous type of oil filled accelerometer is disclosed herein, specifically one which is sensitive to temperature changes sufficient to introduce a temperature related error into its output signal, if left uncorrected. A technique which compensates for these temperature changes in order to reduce the resultant error to an acceptable level is also disclosed herein. This technique uses the oil itself, specifically its sensitivity to changes in temperature resulting in changes in its density, in combination with an expandable/contractible bellows.

REFERENCES:
patent: 937099 (1909-10-01), Schulze
patent: 3498138 (1970-03-01), Stewart
patent: 3789672 (1974-02-01), Davies

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