Trigger probe circuit

Details Trigger probe circuit Trigger probe circuit

1995-07-20

1997-09-23

Bennett, G. Bradley

Geometrical instruments

Gauge

Pivoted probes

G01B 2104

Patent

active

056691513

ABSTRACT:
A trigger probe 10 has electrical contacts which open when the probe contacts a workpiece. This is detected by a comparator 17 to produce a trigger signal. If spurious signals are generated at the probe contacts as a result of vibration, these are filtered out by a capacitor C1, which charges up when the contacts open and introduces a time delay. When the probe contacts re-close after a normal trigger operation, the capacitor C1 is discharged through a discharge circuit, e.g. transistor TR1, so that the energy stored on the capacitor does not damage the probe contacts.

REFERENCES:
patent: 4153998 (1979-05-01), McMurtry
patent: 4177568 (1979-12-01), Werner et al.
patent: 4270275 (1981-06-01), McMurtry
patent: 4364180 (1982-12-01), Willhelm et al.
patent: 4455755 (1984-06-01), Fritsche et al.
patent: 4702013 (1987-10-01), McMurtry
patent: 4769919 (1988-09-01), Lloyd et al.
patent: 4817362 (1989-04-01), Archer
patent: 4916339 (1990-04-01), Lloyd
patent: 5024003 (1991-06-01), Breyer
patent: 5111592 (1992-05-01), Aehnelt et al.
patent: 5272817 (1993-12-01), Gonzalez
patent: 5279042 (1994-01-01), Gonzalez et al.
patent: 5435072 (1995-07-01), Lloyd et al.
Patent Abstract of Japan, vol. 11 No. 11 (E-470), JP61185067 Aug. 18, 1986.
Information Disclosure Statement Appendix, pp. 1-4.

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