Method and device for detecting orientation characteristics on a web of material

Method and device for detecting orientation characteristics on a web of material

  • CN 101,556,140 B
  • Filed: 02/19/2009
  • Issued: 05/06/2015
  • Est. Priority Date: 02/19/2008
  • Status: Active Grant
First Claim
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1. the equipment of at least one alignment features (340) on test material sheet, described material piece is advanced the predetermined material sheet material level (300) of the direct of travel (A) along described material piece is upper, and described equipment comprises:

  • Optical sensor device (370), comprises sensor element, and described sensor element has at least one pickup wire, and described at least one pickup wire is for recording the sensor region (308) in described material piece;

    AndAt least one optical transmitting set (330), described optical transmitting set (330) is designed in described material piece, produce at least two luminous points (334,335;

    334 '"'"', 335 '"'"') to judge the position of departing from material piece material level (300 '"'"') along departing from described predetermined material sheet material level (300), described two luminous points relative to described material piece, marginating compartment on the direction that the direct of travel (A) with described material piece is orthogonal opensDescribed optical transmitting set is designed such that described at least two luminous points (334,335) in described material piece (300) have the first distance (338) along described predetermined material sheet material level,Described optical transmitting set is designed such that departing from material piece material level (300 '"'"') described in described at least two luminous points (334 '"'"', the 335 '"'"') edge in described material piece has second distance (338 '"'"'),Described at least one optical transmitting set (330) is designed such that;

    described at least two luminous points (334;

    335;

    334 '"'"';

    335 '"'"') the described sensor region (308) in described material piece is arranged in,Described sensor device (370) is designed such that;

    the first Distance geometry second distance (338,338 '"'"') described in described sensor element record, to depart from the position of material piece material level (300 '"'"') described in judging,Wherein, described in depart from material piece material level be the material piece material level that have rotated around its axis, described axis is along the direct of travel (A) of described material piece.

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