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Self-Calibrating and Remote Programmable Signal Conditioning Amplifier System and MethodA 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 programmed into the system or downloaded by an operator, and performs up to eighth order linearization.
Document ID
19980203170
Acquisition Source
Kennedy Space Center
Document Type
Other - Patent
Authors
Medelius, Pedro J.
(NASA Kennedy Space Center Cocoa Beach, FL United States)
Hallberg, Carl G.
(NASA Kennedy Space Center Cocoa Beach, FL United States)
Simpson, Howard J., III
(NASA Kennedy Space Center Cocoa Beach, FL United States)
Thayer, Stephen W.
(NASA Kennedy Space Center Cocoa Beach, FL United States)
Date Acquired
August 18, 2013
Publication Date
March 31, 1998
Subject Category
Acoustics
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
NASA-Case-KSC-11688|US-Patent-5,734,596
Patent Application
US-Patent-Appl-SN-233583|US-Patent-Appl-SN-624152
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