Instrument to measure the amount of condensation during gaseous sterilisation process
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
N/A
Issued Date -
Feb 13, 2003
app pub date -
Sep 19, 2002
filing date -
Mar 21, 2000
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The disclosure relates to a condensation monitor for measuring condensation on one side of a window (10) from the other side thereof, the window being located in an enclosure (23) mounted on a chamber wall with a part opening with the interior of the chamber. The monitor comprises a pair of optical prisms (14, 20) positioned on the other side of the window at spaced apart locations to provide transmission of an obliquely angled beam of light into the window and transmission of an obliquely angled beam of light out of the window. A light source (12, 13) adjacent one of the devices provides a parallel beam of light to be transmitted by said device into the window to travel along the window by reflection from side to side to the other device from where the light beam emerges and a light sensor (22) measures the amount of light emerging from the window. The amount of light transmitted along the portion between the optical devices depends on the amount of condensation on said one side of the window, condensation facilites losses of the light through said one side by refraction reducing the amount of light transmitted. along the window to the light sensor.
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