发明名称 |
PHOTOACOUSTIC GAS SENSOR AND MANUFACTURING PROCESS THEREOF |
摘要 |
A photoacoustic gas sensor has a measuring cell (1) and a reference cell (2), a light source (4) emitter and a microphone that measures the difference in pressure (1, 2). The microphone and light source are mounted on a common baseplate (8, 10) and combined with the measuring and reference cells in a common module. The noise cancelling microphone is of the type used in cellphones. The inner chamber between the measuring cell (1) and reference cell (2) is sealed by a bonding agent against the microphone base plate. An independent claim is included for the production of a photoacoustic gas sensor. |
申请公布号 |
PL373063(A1) |
申请公布日期 |
2005.09.19 |
申请号 |
PL20050373063 |
申请日期 |
2005.02.22 |
申请人 |
SIEMENS BUILDING TECHNOLOGIES AG |
发明人 |
PLEISCH ROLF;STEINER PETER |
分类号 |
G01N;G01N21/17;G01N21/37;G01N25/00;H05K1/14 |
主分类号 |
G01N |
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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