Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive
Reexamination Certificate
2006-11-07
2006-11-07
Porta, David (Department: 2884)
Radiant energy
Invisible radiant energy responsive electric signalling
Infrared responsive
C250S339130, C356S436000
Reexamination Certificate
active
07132661
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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Mintz LevinCCohn Ferris Glovsky & Popeo, P.C.
Rosenberger Frederick F.
SpectraSensors, Inc.
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