The report describes the Mach number monitor installed in the 3 ft tunnel for use in setting and holding constant the test Mach number at transonic speeds. A Wheatstone bridge is employed to compare the ratio of resistance analogues of static pressure and total pressure with a four-digit target ratio. Unbalance is indicated in terms of error in mach number M. The instrument is accurate to 0.001 M over its useful range of M = 0.3 to 1.4 K also provides an electrical output which could be used for automatic control of tunnel speed. (Author)


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    Titel :

    A Mach Number Monitor for a Transonic Wind-Tunnel


    Beteiligte:
    S. Barcroft (Autor:in)

    Erscheinungsdatum :

    1967


    Format / Umfang :

    14 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch





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