Geometrical instruments – Gauge – Pivoted probes
Patent
1990-06-25
1992-04-14
Will, Thomas B.
Geometrical instruments
Gauge
Pivoted probes
33559, 33561, 33DIG4, 33DIG21, 356358, G01B 1124
Patent
active
051035723
ABSTRACT:
A feeler pin having a contact element with a contact sensor, which is constructed as a laser feedback interferometer whose resonator quality is varied by changes in position of the contact element enabling measurement of radiation flux or the internal resistance of the laser. These measurements can then be related to a mechanical contact. The interferometer is preferably arranged inside the feeler pin which is constructed as a tube and the sapphire ball, conventional as contact element is used as a third cavity facet. Different variations are represented.
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Roland O. Miles, et al., An External Cavity Diode Laser Sensor, Journal of Lightwave Technology, vol. LT-1, No. 1, Mar. 1983.
T. Yoshino, et al., Laser Diode Feedback Interferometer For Stabilization and Displacement Measurements, Appl. Optics 26, (1987), pp. 892-897.
Wild Leitz Messtechnik GmbH
Will Thomas B.
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