Improvements in electronic and theoretical techniques for determining Constant-Temperature-Anemometer (CTA) response are described. A method by which sine wave testing can be implemented on a commercial CTA by using mutual induction is introduced. A frequency response determined with the technique is used to demonstrate that the square wave test gives a misleading indication of anemometer bandwidth unless interpreted carefully. The use of the discrete fast Fourier transform to deconvolute the pulse response and square wave is demonstrated. The transfer functions for a CTA's response to the tests and to variations in heat transfer are determined analytically. The system bandwidth, optimal balance settings and substrate thermal product are derived by a combination of the electronic tests and the model.


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    Title :

    Determination of hot-film constant-temperature-anemometer response


    Contributors:
    Cain, T.M. (author)


    Publication date :

    1995-01-01


    Size :

    747918 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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