Method for monitoring the optical transmissibility through an observation window and device for cleaning an observation window
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United States of America Patent
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Issued Date -
Oct 2, 2008
app pub date -
Mar 24, 2008
filing date -
Mar 28, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention relates to a method and a device for monitoring the optical transmissibility of an observation window (2) for the spectroscopic analysis of the homogeneity of a mixture material in a mixing container. According to the method, a product-specific limit value for the spectroscopic data is stored in the analysis unit, which limit value must be undershot within a prespecified time. If the data does not fall below the limit value within that time, the analysis unit emits a signal which contains information to the effect that the observation window (3) is soiled to an unacceptable degree. The device comprises an analysis unit in which product-specific limit value for the spectroscopic data can be stored, a cleaning device for cleaning the observation window and a switching unit for activating the cleaning device. The analysis unit is suitable for emitting a signal if the limit value is not undershot during the mixing process within a prespecified time. The analysis unit is connected to the switching unit such that, if the signal is present, the switching unit can activate the cleaning device.
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