Portable instrument for measuring surface finish under workshop conditions weighs 13 lb, measures 11 in. x 11 in. x 7 in. and can be set up alongside machine, on inspection bench or anywhere power supply of 110-x 245 v, 40-100 cps is available; it comprises piezoelectric pickup with sapphire stylus, set of reference surfaces, and selective amplifier giving direct reading on four scales.


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    Title :

    Philips roughness tester


    Additional title:

    Automobile Engr


    Published in:

    Publication date :

    1956


    Size :

    2 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English


    Keywords :


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