Wide range pyroelectric anemometers for gas flow measurements

Author

Hsieh, H.Y. ; Spetz, A. ; Zemel, J.N.

Author_Institution

Dept. of Electr. Eng., Pennsylvania Univ., Philadelphia, PA, USA

fYear

1991

fDate

24-27 June 1991

Firstpage

38

Lastpage

40

Abstract

Studies of pyroelectric anemometers (PAs) have demonstrated that these sensors have an extraordinarily wide operational range and excellent resolution. Measurements were conducted in two structures: a 3.3-mm-diameter pipe with an anemometer located in the center of the pipe and a 4.5-cm-diameter pipe with anemometers placed in the center and on the walls of the pipe. These measurements demonstrated that the PA can detect flows from approximately 1 mL/min to over 20 L/min in the 3.3-mm-diameter tube. Based on the measurements, It is concluded that the PA shows promise as a good flow transfer standard and as a candidate for monitoring extremely low flow rates.<>

Keywords

anemometers; calibration; electric sensing devices; flow measurement; measurement standards; pipe flow; pyroelectric devices; 3.3 mm; 4.5 cm; flow transfer standard; gas flow; monitoring; pipe; pyroelectric anemometers; Crystalline materials; Crystallography; Crystals; Dielectric materials; Ferroelectric materials; Fluid flow; Fluid flow measurement; Magnetic materials; Pyroelectricity; Temperature;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State Sensors and Actuators, 1991. Digest of Technical Papers, TRANSDUCERS '91., 1991 International Conference on

Conference_Location

San Francisco, CA, USA

Print_ISBN

0-87942-585-7

Type

conf

DOI

10.1109/SENSOR.1991.148792

Filename

148792