ABSOLUTE FLEXIBLE CODING STRIP DISPLACEMENT SENSOR

ABSOLUTE FLEXIBLE CODING STRIP DISPLACEMENT SENSOR

  • CN 2,100,601 U
  • Filed: 05/07/1991
  • Issued: 04/01/1992
  • Est. Priority Date: 05/07/1991
  • Status: Active Grant
First Claim
Patent Images

1. , the flexible coding band of a kind of absolute type displacement transducer, it is to be made of flexible coding band (4) and direct-injection type signal detection head (5), flexible coding band (4) moves with measured object or machinery conversion mechanism, Gray code information on it is detected by direct-injection type signal detection head (5), transfer to the displacement that secondary instrument (15) demonstrates measured object through amplifier (14), it is characterized in that:

  • 1.. flexible coding band is to be made by a flexible metal tape, and the n bar digit code road that the Gray code information on it is made up of " printing opacity and non-light hole " constitutes;

    2.. it comprises the band reinforcement and not with two types of reinforcement the light hole structure on the digit path, be with reinforcement light hole it form L by several junior unit light holes 1=l+ δ

    ;

    3.. it comprises two kinds of unitized constructions with the band corresponding light-emitting component of light hole of reinforcement and photo detector in the direct-injection type signal detection head, and a kind of is to have two light-emitting components (27), (28) and two photo detectors (29), (30) corresponding simultaneously, i.e. H 1

    C, another kind have only a light-emitting component (35) corresponding with a photo detector (36), i.e. H 2

    C.

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