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Laser gauge with full air gap measurement range

  • US 10,240,911 B2
  • Filed: 06/12/2017
  • Issued: 03/26/2019
  • Est. Priority Date: 06/12/2017
  • Status: Active Grant
First Claim
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1. An improved laser gauge, the gauge having an enclosure that houses at least one laser sensor for measuring at least the distance to a target surface located in the path of light emitted by the laser sensor, each laser sensor having a proximal measurement limit and a distal measurement limit that define a measurement range, the enclosure having at least two enclosure arms that are spaced apart for receipt of the target surface in an air gap between the arms, one of said enclosure arms being a proximal enclosure arm and the other enclosure arm being a distal enclosure arm, the gauge further comprising:

  • (a) a proximal enclosure barrier attached to the proximal enclosure arm at a proximal boundary of the air gap, the proximal enclosure barrier being positioned away from said one laser sensor at or beyond the proximal measurement limit of said one laser sensor; and

    (b) a distal enclosure barrier attached to the distal enclosure arm at a second boundary of the air gap, the distal enclosure barrier being positioned away from said one laser sensor at or nearer than the distal measurement limit of said one laser sensor.

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