An electronic scanner of pressure for wind tunnel modelsAn electronic scanner of pressure (ESOP) has been developed by NASA Ames Research Center for installation in wind tunnel models. An ESOP system consists of up to 20 pressure modules (PMs), each with 48 pressure transducers and a heater, an analog-to-digital (A/D) converter module, a microprocessor, a data controller, a monitor unit, a control and processing unit, and a heater controller. The PMs and the A/D converter module are sized to be installed in the models tested in the Ames Aerodynamics Division wind tunnels. A unique feature of the pressure module is the lack of moving parts such as a pneumatic switch used in other systems for in situ calibrations. This paper describes the ESOP system and the results of the initial testing of the system. The initial results indicate the system meets the original design goal of 0.15 percent accuracy.
Document ID
19870057832
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Kauffman, Ronald C. (NASA Ames Research Center Moffett Field, CA, United States)
Coe, Charles F. (Coe Engineering, Inc. Los Altos, CA, United States)