Hydrogen sensor, apparatus for measuring hydrogen concentration, and method for measuring hydrogen concentration
US7174768B2 · kind B2 · utility
2Cited by
15References
6Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Dec 17, 2004 |
| Grant date | Feb 13, 2007 |
| Priority date | — |
| Expiry date | Jan 16, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/005
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A hydrogen sensor includes a hydrogen-absorbing material, a thermoelectric element, an electrical circuit for driving the thermoelectric element, a thermometer for the hydrogen-absorbing material, a temperature control circuit for maintaining the hydrogen-absorbing material at a constant temperature using the thermoelectric element, a unit for calculating the exothermic value of the hydrogen-absorbing material based on the electrical current flowing from the drive circuit, and a unit for calculating the hydrogen uptake of the hydrogen-absorbing material based on the exothermic value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.