Electronic Resource
[S.l.]
:
American Institute of Physics (AIP)
Review of Scientific Instruments
64 (1993), S. 3229-3235
ISSN:
1089-7623
Source:
AIP Digital Archive
Topics:
Physics
,
Electrical Engineering, Measurement and Control Technology
Notes:
Constant temperature anemometers and resistance temperature detectors have been adapted to measure the instantaneous mass flow rates and temperatures in oscillating gas flows at frequencies up to 30 Hz and temperatures down to 70 K. These devices were used to study the behavior of the oscillating working fluid (helium) in a regenerative refrigerator called an orifice pulse tube refrigerator with little intrusion in the system. The probes have proved to be very robust with no probe breakage even under the severe operating conditions imposed by the oscillating mass flow. Calibration procedures are presented for correcting the anemometer output associated with the oscillating temperatures and pressures in such systems. Under these conditions the sensors appear to have an uncertainty of less than 1.6%. Typical results obtained with these sensors are presented in this paper. These sensors could be used in many other applications for studies of oscillating systems where instantaneous mass flow rates and temperatures are required.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.1144333
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