Workpiece gripping integrity sensor
US8226142B2 · kind B2 · utility
2Cited by
15References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 23, 2008 |
| Grant date | Jul 24, 2012 |
| Priority date | — |
| Expiry date | Aug 17, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S414/141
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A workpiece gripping integrity device and method are provided having a charge-transfer sensing device configured to detect a change in charge associated with a gripper arm assembly based on a grip condition thereof. The charge-transfer sensing device can be configured to detect a change in capacitance between the gripper arm assembly and ground, wherein the change in capacitance is based on a grip condition of the gripper arm assembly associated with a plurality of grippers contacting the workpiece.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.