Tensiographic drophead
US7786441B2 · kind B2 · utility
0Cited by
1References
16Claims
0Family size
Inventors
Key dates
| Filing date | Feb 20, 2006 |
| Grant date | Aug 31, 2010 |
| Priority date | — |
| Expiry date | Mar 22, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/3688
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A tensiographic drophead comprises a quartz body 10 having a terminal surface 18 with a peripheral drop suspension edge 20. A liquid feed bore 14 extends through the body for supplying a liquid to the terminal surface to form a drop 32 whose outer edges are suspended from the suspension edge 20. At least two light guides 26, 28 extend through the body for respectively transmitting light into and collecting light reflected internally from the drop. The light guides terminate above the plane containing the suspension edge such that the intensity of the reflected light has a significant second order reflection peak.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.