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Continuous transducer drift compensator.

Authors
Lucich-GM; Seitz-CA
Source
U S Patent 4,387,438 1983 Jun; :1-7
NIOSHTIC No.
10001912
Abstract
In a transducer signal processing system wherein the output signal generated by a transducer (14) includes a nearly d.c., relatively large amplitude drift component (12), a higher frequency end point, data component (10) and a high frequency noise (hash) component (11), the drift and hash components are substantially eliminated by supplying the composite transducer output signal to a pair of parallel integrator circuits (28, 30) having different integration time constants. The faster integrator (28) passes the drift and data signal components, while attenuating the hash component, whereas the slower integrator (30) passes the drift component and attenuates the data and hash components. The output of the slower integrator (30) is subtracted from the output of the faster integrator (28) to provide a resultant signal containing essentially only the transducer data component.
Publication Date
19830607
Document Type
PA;
Fiscal Year
1983
NTIS Accession No.
NTIS Price
Identifying No.
PAT 4,387,438
Source Name
U.S. Patent No. 4387438
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