COORDINATE READER

• Main Authors: TANABE NAOTO, AONO YOSHITAMI, TAKEDA YUKIO
• Format: Patent
• Language: English
• Published: 07.07.1983
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; PHYSICS; TESTING

PURPOSE:To detect a position with a high precision, by dividing the surface of a plane plate into n-number of continuous areas to read the position on the plane plate by n-order higher harmonic components and using fundamental wave components to discriminate which area the position exists. CONSTITUT...