Surface texture measuring instrument

Details Surface texture measuring instrument Surface texture measuring instrument

2007-06-01

2010-10-19

Williams, Hezron (Department: 2856)

Measuring and testing

Surface and cutting edge testing

Roughness

Reexamination Certificate

active

07814779

ABSTRACT:
A surface texture measuring instrument includes a force sensor (1), an actuator (11) and a detector (12). The surface texture measuring instrument further includes: a scanning controller (54) that collects a detection signal from the force sensor (1) and drives the actuator such that the detecting signal coincides with a target measurement value; a touch signal generator (51) that generates a touch signal when the detection signal from the force sensor (1) coincides with the target measurement value; and a measurement value collecting unit (55) that collects a measurement value from a counter (26) at a predetermined time interval in a state where a fluctuation range of the detection signal from the force sensor (1) is within a preset range when a scanning controller is in operation, the latch counter (52) collecting a measurement value from a latch counter (52) each time the touch signal is generated in a state where the detection signal from the force sensor (1) oscillates and an amplitude exceeds the preset range.

REFERENCES:
patent: 2003/0089163 (2003-05-01), McWaid et al.
patent: 2004/0040373 (2004-03-01), Saito
patent: 1 760 422 (2007-03-01), None
patent: A-2001-264050 (2001-09-01), None
patent: A-2007-064891 (2007-03-01), None

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