Boots – shoes – and leggings
Patent
1996-03-29
1998-03-31
Trammell, James P.
Boots, shoes, and leggings
36457104, 330295, 330 51, 330124R, G01R 3500
Patent
active
057345961
ABSTRACT:
A self-calibrating, remote programmable signal conditioning amplifier system employs information read from a memory attached to a measurement transducer for automatic calibration. The signal conditioning amplifier is self-calibrated on a continuous basis through use of a dual input path arrangement, with each path containing a multiplexer and a programmable amplifier. A digital signal processor controls operation of the system such that a transducer signal is applied to one of the input paths, while one or more calibration signals are applied to the second input path. Once the second path is calibrated, the digital signal processor switches the transducer signal to the second path, and then calibrates the first path. This process is continually repeated so that each path is calibrated on an essentially continuous basis. Dual output paths are also employed which are calibrated in the same manner. The digital signal processor also allows the implementation of a variety of digital filters which are either proprogrammed into the system or downloaded by an operator, and performs up to eighth order linearizations.
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Hallberg Carl G.
Medelius Pedro J.
Simpson, III Howard J.
Thayer Stephen W.
The United States of America as represented by Administrator Nat
Trammell James P.
Vrioni Beth A.
Wachsman Hal D.
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