Touch signal probe
US6327789A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 4, 1999 |
| Grant date | Dec 11, 2001 |
| Priority date | — |
| Expiry date | Aug 4, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B7/012
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a touch signal probe (10) having a stylus holder (11), a vibrator (12) supported by the stylus holder (11) and has a contact portion (12A) to contact to a workpiece at a distal end thereof, a vibrating means (13A) for vibrating the vibrator (12) in an axial direction resonantly, and a detecting means (13B) for detecting the contact by a change in the vibration of the vibrator (12) caused by the contact to the workpiece is provided. The vibrator (12) is supported by the stylus holder (11) at two support points (A) and (B) positioned with a node of vibration of the vibrator (12) therebetween. Since the vibrating means (13A) and the detecting means (13B) are disposed spanning over the two support points, the node of vibration can be formed between the support points A and B and the size of the touch signal probe (10) can be easily reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.