Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive
Reexamination Certificate
2008-03-04
2008-03-04
Porta, David (Department: 2884)
Radiant energy
Invisible radiant energy responsive electric signalling
Infrared responsive
C250S343000, C250S339130, C250S297000, C073S335010, C073S335040, C073S029050
Reexamination Certificate
active
07339168
ABSTRACT:
A system and method are disclosed for the detection of water vapor in a natural gas background. The system includes a light source operating in a wavelength range such as, 1.877-1.901 μm, 2.711-2.786 μm, or 920-960 nm, passes through the natural gas to be detected by a detector. In one embodiment, the light source is a tunable diode laser and the moisture level is determined by harmonic spectroscopy. In other embodiments, a VCSEL laser is utilized.
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Eley Jessica L
Mintz Levin Cohn Ferris Glovsky and Popeo P.C.
Porta David
SpectraSensors, Inc.
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