Measuring and testing – Gas analysis – By vibration
Reexamination Certificate
2011-03-01
2011-03-01
Caputo, Lisa M (Department: 2855)
Measuring and testing
Gas analysis
By vibration
C356S432000, C356S437000
Reexamination Certificate
active
07895880
ABSTRACT:
Embodiments of the apparatus, systems, and methods relate to a photoacoustic cell including an excitation source, a chamber, and a quantum dot substrate between the excitation source and the chamber. The excitation source generates a light spectrum. The quantum dot substrate, when subjected to the light spectrum, emits a specific wavelength of light to be received by the chamber. The photoacoustic cell apparatus may be part of a portable gas sensing system, and may be used to detect and measure the concentration of one or more gases. Additional apparatus, systems, and methods are disclosed.
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“European Application No. 09157446.7, European Search Report Mailed Dec. 8, 2009”, 8 pgs.
Fritz Bernard S.
Marcus Matthew S.
Caputo Lisa M
Honeywell International , Inc.
Roy Punam
Schwegman Lundberg & Woessner, P.A.
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