Observation apparatus
US8202478B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 5, 2009 |
| Grant date | Jun 19, 2012 |
| Priority date | — |
| Expiry date | Oct 11, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N31/225
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An observation apparatus can observe the temporal fluctuations of the two-dimensional distribution of oxygen concentration in the bottom sludge and also in the bottom water on the seabed at an observation site. The observation apparatus includes a pressure-resistant container main body section that has a pressure-resistant window and is hermetically sealed by a pressure-resistant container closure section, a sensor foil that contains an oxygen quenching material and is arranged at the pressure-resistant window, an excitation light source that is arranged at the pressure-resistant container main body section to irradiate the sensor foil and an image pickup apparatus that shoots the sensor foil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.