发明名称 |
Gas visualizing apparatus and method for detecting gas leakage from tanks or piping |
摘要 |
A gas visualizing apparatus includes an image sensor for detecting infrared light radiated or reflected from a background of a gas leak monitoring territory A, a laser source for emitting a detection infrared beam in two-dimensional form toward the gas leak monitoring territory A, the detection infrared beam having a wavelength absorbable by a gas "g" to be detected and a CRT for displaying information relating to gas leakage as a two-dimensional visible image corresponding to the gas leak monitoring territory A. The laser source includes a beam expander for converging or diverging the detection infrared beam to vary an area of the gas leak monitoring territory A. The image sensor includes a transmission and width varying device for setting the infrared light entering the image sensor to a band substantially centering on the wavelength of the detection infrared beam, and varying a width of the band, to realize an excellent visible image.
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申请公布号 |
US5430293(A) |
申请公布日期 |
1995.07.04 |
申请号 |
US19940228146 |
申请日期 |
1994.04.15 |
申请人 |
OSAKA GAS CO., LTD. |
发明人 |
SATO, TOMINORI;KANAGAWA, TOSHIHIDE;SUMIDA, KOICHI;NISHIO, TAKESHI |
分类号 |
G01M3/38;(IPC1-7):G01N21/35 |
主分类号 |
G01M3/38 |
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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