Probe having low battery detection/transmission feature

Details Probe having low battery detection/transmission feature Probe having low battery detection/transmission feature

1985-09-12

1987-04-21

Little, Willis

Geometrical instruments

Gauge

Pivoted probes

33172E, G01B 702

Patent

active

046585095

ABSTRACT:
Provision is made in a battery operated probe for detecting and wirelessly transmitting information to a remote receiver indicating that the battery power in the probe is low. In the preferred embodiment, both probe stylus position information and low battery information are transmitted by way of at least one infrared optical transmission device in the probe. A pair of phase locked loop circuits in the remote receiver are used to discriminate stylus position information from low battery condition information in the optical transmission.

REFERENCES:
patent: 4130941 (1978-12-01), Amsbury
patent: 4160246 (1979-07-01), Martin et al.
patent: 4232308 (1980-11-01), Lee et al.
patent: 4437240 (1984-03-01), Juengel et al.
patent: 4451987 (1984-06-01), Cusack
patent: 4509266 (1985-04-01), Cusack
Big Zero-Senser Trade Literature; 6 pages; Catalog No. 1982, Prototype Performance Specification Number ROS 13--Optically Coupled Probe (OMP/OMM); 24 pages; Renishaw Electrical Limited.
Users Handbook MP3 Probe with 360.degree. Optical Transmission System by Renishaw.
Optical Transmission for Touch Trigger Probes by Renishaw; 2 pages.

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