Invention Grant
- Patent Title: Photoacoustic sensor with mirror
- Patent Title (中): 光声传感器带镜
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Application No.: US13419827Application Date: 2012-03-14
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Publication No.: US08848191B2Publication Date: 2014-09-30
- Inventor: Lisa Lust
- Applicant: Lisa Lust
- Applicant Address: US NJ Morristown
- Assignee: Honeywell International Inc.
- Current Assignee: Honeywell International Inc.
- Current Assignee Address: US NJ Morristown
- Agency: Schwegman Lundberg & Woessner, P.A.
- Main IPC: G01N21/00
- IPC: G01N21/00

Abstract:
A photoacoustic sensing device includes a laser tuned to emit light to cause optical absorption by a gas to be detected, a resonant acoustic sensor positioned to receive pressure waves from the gas, wherein the laser is modulated to match a resonant frequency of the resonant acoustic sensor, and a first mirror positioned to receive light from the laser after the light has passed through the gas and to reflect the received light back through the gas to cause additional optical absorption.
Public/Granted literature
- US20130239658A1 PHOTOACOUSTIC SENSOR WITH MIRROR Public/Granted day:2013-09-19
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