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United States of America Patent
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Sep 17, 2002
Grant Date -
N/A
app pub date -
Aug 12, 1999
filing date -
Aug 14, 1998
priority date (Note) -
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status (Latency Note)
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Abstract
An apparatus (10) for analyzing lubricant oils and functional fluids includes an optical emission spectrometer (OES) (26) having a substantially continuously valued wavelength versus intensity output (140). The OES (26) analyzes light captured from a spark emission stand (58) through which the fluid sample is flowed. An expert system (160-172) operates according to a set of Rules that corrects background influence from the electrodes, and generates diagnostic text (174) for an operator based on the information about the fluid sample provided by the OES (26) and other measurement devices. The apparatus (10) is reduce in size, weight and cost.
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