Patent ID: 6314800
Filing Date: 2001-11-13
Classification: G01B

Abstract:
A micro-geometry measuring device for measuring a workpiece comprising:a pivotable arm;a stylus mechanism having a stylus body connected to the arm to be in contact with the workpiece;a measuring force adjusting mechanism for adjusting a measuring force working between the stylus body and the workpiece;a displacement sensor for sensing a position of the arm; anda measuring force controller for controlling the measuring force adjusting mechanism,the stylus mechanism including a holder connected to a part of the arm, the stylus body attached to the holder, a vibrator for resonantly vibrating the stylus body, and a detector for detecting a vibration status to be changed when the stylus body touches the workpiece,the measuring force controller conducting feedback control of the measuring force adjusting mechanism based on an output signal sent from the detector.