Use of Hall Effect for Transducer

DOI

Bibliographic Information

Other Title
  • ホール効果応用変換器

Abstract

When a current flows through a piece of germanium crystal placed in a magnetic field, Hall electromotive force is developed at right angles both to the magnetic field and to the current. The magnitude of the electromotive force is proportional to sinθ, in which θ is an angle between the current and the magnetic field. We can make a mechanic-to-electric transducer applying the above principle. We can also make a similar transducer, changing the angle between the magnetic field and the direction of Hall leads. We adopted the arrangement by the latter method because we can make the narrowest magnetic pole gap or the strongest magnetic field. By combining the above arrangement and a pneumatic pressure transmitter, We made a pressure to-voltage transducer. It converts a pneumatic pressure (0-1.0kg/cm2) to voltage (0-10mV). Some characteristics of this transducer are as follows: <BR>Hysteresis: less than 0.5per cent of full span. (mainly caused by mechanical parts of the transducer.) <BR>Nonlinearity: less than 0.4per cent of full span. <BR>Ambient temperature effect: almost independent if below 40°C.

Journal

Details 詳細情報について

  • CRID
    1390001205121878528
  • NII Article ID
    130003765218
  • DOI
    10.11499/sicejl1951.8.142
  • ISSN
    18838154
    04500024
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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