On the use of self-heated thermistor arrays for the measurement of air flow in ducts.

M. R. Muller, M. Pioserchio, L. V. Hebenstreit

Research output: Contribution to journalArticlepeer-review

Abstract

An accurate, repeatable, and totally electronic flow measuring device has been developed for use in ducts, consisting of an array of self heated thermistors at equally spaced locations on a grid with the thermistors located in notches on the trailing edge of non lifting airfoils. The voltage ouput across the self heated thermistors was found to vary linearly over a large range of low velocity, thereby allowing the information from all thermistors in the array to be summed yielding an overall average mass flow in the duct. Data demonstrating the linearity and a description of the schemes used to compensate the signal output for changes in ambient temperature are discussed. (A)

Original languageEnglish (US)
Pages (from-to)131-137
Number of pages7
JournalIN: MASS FLOW MEASUREMENTS - 1984, PRESENTED AT ASME WINTER ANNUAL MEETING, (NEW ORLEANS, U.S.A.: DEC. 9-14, 1984), T.R. HEDR
Volume17 )
StatePublished - Jan 1 1984

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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