Coordinate measuring apparatus having a probe in the form of a solid-state oscillator

US5625957A · kind A · utility

Assignee

• Carl Zeiss Stiftung · DE

Inventors

• Karl-Hermann Breyer · Heidenheim, DE
• Helmut Heier · Aalen, DE
• Gerhard Meyer · Erlangen, DE

Key dates

• Filing date: May 15, 1995
• Grant date: May 6, 1997
• Expiry date: May 15, 2015

Classification

• Technology area (CPC G): Physics
• CPC primary: G01B7/012
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The solid-state oscillator, preferably a watch crystal (1/2), is mounted with its direction (S) of vibration at an angle to all three measuring directions (x, y, z) of the coordinate measuring apparatus. The oscillator circuit of the solid-state oscillator is connected to an electronic circuit which generates two different contact signals. Both measures make it possible to reduce the dependency of the contact uncertainty of the measuring direction.