Device for detecting interaction with an object
US7849738B2 · kind B2 · utility
1Cited by
10References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2007 |
| Grant date | Dec 14, 2010 |
| Priority date | — |
| Expiry date | Mar 6, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01L2200/143
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device and method for the detection of the interaction between two or more objects is disclosed. The device utilizes electrical impedance spectra measured from a piezoelectric element attached to one such object. Comparison of such spectra along a range of traverse allows precise estimates of distance to be made. One useful application is the topographical mapping of a surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.