Noncontact measuring device for cylindrical, elongated objects b

Details Noncontact measuring device for cylindrical, elongated objects b Noncontact measuring device for cylindrical, elongated objects b

1986-11-13

1988-10-18

Wan, Gene

Optics: measuring and testing

By polarized light examination

With light attenuation

356394, G01B 1124

Patent

active

047782749

ABSTRACT:
A noncontact measuring device has a generally L-shaped pivotable and rotatable probe means to be disposed along a straight portion of an object. Another noncontact measuring device has a rotatable probe means with an inverted L-shape to be disposed along a straight portion of an object. The probe of the former device projects a beam of light, while that of the latter device projects two beams of light. For either measuring device, when the beam or beams of light are being intercepted by the object, coordinates of a predetermined point of the probe means are read by a three-dimensional shape measuring apparatus to which the device is connected.

REFERENCES:
patent: 3944798 (1976-03-01), Eaton

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