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CN107735667A 光学颗粒传感器和感测方法 有权

光学颗粒传感器和感测方法
摘要：
光学颗粒传感器至少具有施加于光学传感器(16)或传感器信号的第一和第二阈限设置，以获得第一和第二光学传感器读数。对它们进行处理(24)以确定取决于污染事件类型的参数。该参数用于根据第一和第二光学传感器读数中的至少一个来确定低于第一颗粒尺寸的所有颗粒的质量。以这种方式，即使光学传感器不可以响应最小的颗粒，也可以评估低于期望尺寸的所有颗粒的质量。
摘要（英）：

An optical particle sensor has at least first and second threshold settings applied to an optical sensor (16) or a sensor signal to obtain first and second optical sensor readings. They are processed(24) to determine a parameter which is dependent on a type of pollution event. The parameter is used to determine from at least one of the first and second optical sensor readings a mass of all particles below a first particle size. In this way the mass of all particles below a desired size can be evaluated, even though the optical sensor may not be responsive to the smallest particles.

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