A remote millivolt multiplexer and amplifier module for wind tunnel data acquisitionA 30-channel remotely located multiplexer and amplifier module is developed for the measurement of wind tunnel models, which substantially reduces the amount of wiring necessary and thus provides higher accuracy. The module provides for a wide variety of transducer voltage outputs to be multiplexed and amplified within the model, and all signals are able to exit the module on two wires. The module is self-calibrating, and when coupled with the electronically scanned pressure instrumentation widely used in wind tunnels, it allows the modular wind tunnel models to be fabricated and checked before installation into the wind tunnel.
Document ID
19820058310
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Juanarena, D. B. (Pressure Systems, Inc. Hampton, VA, United States)
Blumenthal, P. Z. (NASA Lewis Research Center Cleveland, OH, United States)