| 发明名称 |
Infrared acid detector and method |
| 摘要 |
A method and apparatus for detecting the presence and concentration of organic and inorganic acids by their infrared absorption characteristics in a refrigeration unit while running. Acids of interest, such of those formed upon decomposition of refrigerant or refrigerant oil, are volatilized and subjected to infrared radiation. Optical filtering is used to limit the infrared radiation to relevant wavelengths. Organic acids are detected by the absorbance of energy between 4-6 microns while inorganic acids are detected by the absorbance of energy between 2-4 microns. |
| 申请公布号 |
US8779362(B1) |
申请公布日期 |
2014.07.15 |
| 申请号 |
US201213447327 |
申请日期 |
2012.04.16 |
| 申请人 |
|
发明人 |
Amundsen Ted J.;Hahn David C. |
| 分类号 |
G01N21/35 |
主分类号 |
G01N21/35 |
| 代理机构 |
|
代理人 |
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| 主权项 |
1. A method of detecting at least one of inorganic acid and organic acid in a vapor compression system, comprising sampling refrigerant vapor contained in the system, subjecting the sampled refrigerant vapor to an infrared beam, and observing infrared absorbance of the sampled refrigerant vapor to detect a presence of the at least one of inorganic acid and organic acid. |
| 地址 |
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