发明名称 |
METHOD AND DEVICE FOR DETECTION OF MULTIPLE FLAME TYPES |
摘要 |
A flame detector includes an infrared detector and a first window covering the infrared detector. A second window is positioned in front of the first window. The flame detector is adapted to reject light having a wavelength below approximately 2 mum and to reject light having a wavelength above approximately 6 mum, allowing detection of flame from multiple sources. In variations, the windows in combination with the infrared detector may provide the rejection or a band pass filter provides the rejection. Still further variations utilize notch filters or a band reject filter to provide notches of light to the infrared detector corresponding to the wavelength of different flame sources to be detected.
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申请公布号 |
US2013234028(A1) |
申请公布日期 |
2013.09.12 |
申请号 |
US201213417644 |
申请日期 |
2012.03.12 |
申请人 |
LARSEN CHRISTOPHER SCOTT;COLE BARRETT E.;HONEYWELL INTERNATIONAL INC. |
发明人 |
LARSEN CHRISTOPHER SCOTT;COLE BARRETT E. |
分类号 |
G01J5/08 |
主分类号 |
G01J5/08 |
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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