The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 09, 2007
Filed:
Sep. 04, 2003
Akinori Saito, Veenendaal, NL;
Akinori Saito, Veenendaal, NL;
Mitutoyo Corporation, Kawasaki, JP;
Abstract
A touch sensorhaving a styluswith a tipA making contact with a test piece W has an operational control structure including an oscillatorwhich oscillates the stylusin the axial direction; a detecting circuitwhich detects changes of oscillation of the stylus; an adjustor unitwhich removes noise added to an output signal from the detecting circuit; a fine motion mechanism controllerwhich controls the operation of a fine motion mechanismin such a manner that the change of the quantity of state of the detection signal is maintained constant; and a PZT driverwhich operates the fine motion mechanism. The measuring force during surface configuration measurement can be adjusted by adjusting an alternating signal to be applied to the touch sensor or by reducing the noise added to the detection signal without making modifications to a shape or structure of the touch sensor.