Geometrical instruments – Gauge – With support for gauged article
Patent
1991-04-19
1992-09-15
Cuchlinski, Jr., William A.
Geometrical instruments
Gauge
With support for gauged article
3350103, 33DIG1, 73105, G01B 728
Patent
active
051466902
ABSTRACT:
A scanning head (12) for a surface measuring machine has a probe tip (30), which is supported by a probe tip support lever (18) so that it can be deflected perpendicularly to the reference surface (82). Incorporated between the probe tip (30) and a rigid section of the probe tip support lever (18) is a force sensor (34), whereof the output signal serves as an actual value of a control circuit (56 to 60), which controls a magnetic servo motor (44, 46), which exerts a variable additional force, to be added to the force of a tension spring (42), on the probe tip support lever (18), the whole so that the contact pressure of the probe tip (30) is kept constant irrespective of the surface contour.
REFERENCES:
patent: 2691887 (1954-10-01), Rinker
patent: 3714715 (1973-02-01), Coes, Jr.
patent: 4060734 (1977-11-01), Tilley et al.
patent: 4377911 (1983-03-01), Iida et al.
patent: 4669300 (1987-06-01), Hall et al.
Cuchlinski Jr. William A.
Focus Messtechnik GmbH & Co KG
Fulton C. W.
Philpitt Fred
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