Radiant energy – Photocells; circuits and apparatus – With circuit for evaluating a web – strand – strip – or sheet
Patent
1998-07-06
2000-12-19
Lee, John R.
Radiant energy
Photocells; circuits and apparatus
With circuit for evaluating a web, strand, strip, or sheet
25055942, 356375, G01B 1100
Patent
active
061630357
ABSTRACT:
On a measuring head which is mounted on a working end of a robot, there are provided an optical distance measuring device and a mirror which refracts an optical axis of the distance measuring device toward the plate surface of a workpiece. The measuring head is moved such that a point of irradiation of a light beam relative to the workpiece moves along a scanning line which is set so as to cross a hole edge point. The position at which the measured distance rapidly changes is set as the position of the hole edge point of a hole which crosses the scanning line. In case holes are respectively formed in a pair of plate portions which lie opposite to each other, the measuring head is provided with a distance measuring device and a mirror in a pair respectively so that the positions of both the holes on both sides can be measured at the same time.
REFERENCES:
patent: 4690563 (1987-09-01), Barton et al.
patent: 4980570 (1990-12-01), Ysunaga et al.
patent: 5430547 (1995-07-01), Takagi et al.
patent: 5771309 (1998-06-01), Yamaoka et al.
patent: 5778548 (1998-07-01), Cerruti
patent: 5866915 (1999-02-01), Pryor
Kawasaki Yoshinobu
Shibayama Takao
Honda Giken Kogyo Kabushiki Kaisha
Lee John R.
LandOfFree
Method of, and apparatus for, measuring position of hole does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of, and apparatus for, measuring position of hole, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of, and apparatus for, measuring position of hole will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-272871