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SMOKE SIMULATOR FOR SCATTERED LIGHT DETECTORS, PROCESS FOR REGULATING THEIR SENSITIVITY TO SMOKE AND USE OF THE SIMULATOR
SMOKE SIMULATOR FOR SCATTERED LIGHT DETECTORS, PROCESS FOR REGULATING THEIR SENSITIVITY TO SMOKE AND USE OF THE SIMULATOR
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机译:用于散射光探测器的烟雾模拟器,调节其烟雾敏感性和使用该模拟器的过程
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摘要
A smoke simulator contains a transparent body (5) in which are enclosed incident light scattering centres (6). In order to regulate the sensitivity of smoke alarms having a light source (1), a sensor (2), a measurement volume (3) crossed by light and evaluation electronics, the transparent body (5) is placed in a defined position in the measurement volume (3) and is lighted by the light source (1). The evaluation electronics is then tuned to the output of a predetermined signal which preferably corresponds to the smoke density which forms the alarm concentration of the smoke alarm.
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