发明名称 |
Laser absorption spectral diffraction type gas detector and method for gas detection using laser absorption spectral diffraction |
摘要 |
A laser absorption spectroscopy type gas detection device is provided in which a light source device emits a laser beam containing a light component having a wavelength corresponding to an absorption spectrum of gas to be detected. A concave mirror has a reflecting surface to reflect and condense the laser beam reflected by material body existing in an advancing direction of the laser beam. A light receiver is disposed at the condensing position by the concave mirror and outputs an electric signal for detecting whether the gas to be detected is present in a vicinity of the material body. An adjustment mechanism freely moves and adjusts a relative position of the concave mirror and the light receiver in accordance with a distance to the material body such that the light receiver is positioned at the condensing position.
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申请公布号 |
US6876450(B2) |
申请公布日期 |
2005.04.05 |
申请号 |
US20020239960 |
申请日期 |
2002.09.25 |
申请人 |
ANRITSU CORPORATION |
发明人 |
NANAMI MASAYA;TSUKAMOTO TAKESHI |
分类号 |
G01N21/27;G01N21/35;G01N21/39;(IPC1-7):G01N21/00 |
主分类号 |
G01N21/27 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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