发明名称 |
Device for measuring gas concentration having dual emitter |
摘要 |
A device for measuring the concentration of a gas contained in a cavity and for checking the operation of a catalytic element in an exhaust line in an automobile vehicle. A first emitter (E 1 ) composed of an optical pumped micro-cavity and for which the emission spectrum is within the gas absorption band emits a first radiation that passes through the cavity. A second emitter emits a second radiation that passes through the cavity. A receptor measures the optical intensity (I) of the radiation that passed through the cavity.
|
申请公布号 |
US7034325(B2) |
申请公布日期 |
2006.04.25 |
申请号 |
US20030250317 |
申请日期 |
2003.12.16 |
申请人 |
COMMISSARIAT A L'ENERGIE ATOMIQUE |
发明人 |
BESESTY PASCAL;MOLVA ENGIN;HADJI EMANUEL |
分类号 |
G01N15/06;G01N21/31;G01N21/35;G01N21/39;G01N21/53 |
主分类号 |
G01N15/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|