发明授权
- 专利标题： METHOD AND SYSTEM FOR GAS DETECTION
- 专利标题（中）： VERFAHREN UND SYSTEM ZUR GASDETEKTION
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申请号： EP12813075申请日： 2012-12-05
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公开(公告)号： EP2788751B1公开(公告)日： 2017-06-21
- 发明人: SAGBERG HÅKON
- 申请人： GASSECURE AS
- 专利权人： GASSECURE AS
- 当前专利权人： GASSECURE AS
- 优先权： GB201120870 2011-12-05
- 主分类号： G01N21/3504
- IPC分类号： G01N21/3504 ; G01N33/00
摘要：
A gas sensor is used for determining a concentration of a predetermined gas in a measurement volume (104). The gas sensor comprises a light source (100) and a detector (114) arranged to receive light that has passed through the measurement volume. During a first measurement period, the detector (114) is used to make a first measurement of an amount of light received in at least one wavelength band which is absorbed by the gas. The first measurement is compared to a predetermined threshold value. If the threshold is crossed, during a second measurement period the detector (114) is used to make a second measurement of an amount of light received in at least one wavelength band which is absorbed by the gas. The concentration of said gas in said measurement volume (104) is calculated using the first and/or second measurement.
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