Laser sensor for detecting the extended state of an object in co

Details Laser sensor for detecting the extended state of an object in co Laser sensor for detecting the extended state of an object in co

1993-04-09

1995-04-04

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

356375, G01N 2186

Patent

active

054040213

ABSTRACT:
A non-contact, laser detection system for detecting the extended state of an object in continuous motion such as a drill bit. For detecting the state of sufficient or insufficient flute length of the drill bit, the drill bit is moved in relation to the laser detection system until energy reflected from the tip of the drill bit is detected. Then, the drill bit is moved in relation to the laser detection system a pre-selected distance from the point at which the tip was initially detected, to a second point where the energy reflected from the drill bit is analyzed by a computer to determine if the laser is still incident on the fluted section of the drill bit. If the computer determines that the laser is still incident on the fluted section, then the flute length of the drill bit is at least as long as the preselected distance.

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Broken Tool Indicator Service Manual, Rev. C, Excellon Automation, Torrance, Calif., Jul. 1987, pp. 2-1, 4-1 to 4-3.

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