Novel design of a resonant photoacoustic spectrophone for elemental carbon mass monitoring

A. Petzold; R. Niessner

doi:10.1063/1.113271

Novel design of a resonant photoacoustic spectrophone for elemental carbon mass monitoring

A. Petzold, R. Niessner

Natural Sciences

Technical University of Munich

Research output: Contribution to journal › Article › peer-review

36 Scopus citations

Abstract

An improved design of a resonant photoacoustic spectrophone is reported for aerosol absorption measurements by using a near-infrared laser diode (λ=802 nm; P=450 mW) in combination with a double-pass configuration for excitation of azimuthal modes and right-angle mounting of two electret microphones for signal detection. As a result of the new spectrophone setup a small-sized portable sensor system for real-time in situ elemental carbon monitoring is presented. The detection limit is estimated to 4.5×10^-8cm^-1 or 1.5 μg elemental carbon per m ³.

Original language	English
Pages (from-to)	1285
Number of pages	1
Journal	Applied Physics Letters
DOIs	https://doi.org/10.1063/1.113271
State	Published - 1995

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title = "Novel design of a resonant photoacoustic spectrophone for elemental carbon mass monitoring",

abstract = "An improved design of a resonant photoacoustic spectrophone is reported for aerosol absorption measurements by using a near-infrared laser diode (λ=802 nm; P=450 mW) in combination with a double-pass configuration for excitation of azimuthal modes and right-angle mounting of two electret microphones for signal detection. As a result of the new spectrophone setup a small-sized portable sensor system for real-time in situ elemental carbon monitoring is presented. The detection limit is estimated to 4.5×10-8cm-1 or 1.5 μg elemental carbon per m 3.",

author = "A. Petzold and R. Niessner",

year = "1995",

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journal = "Applied Physics Letters",

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AB - An improved design of a resonant photoacoustic spectrophone is reported for aerosol absorption measurements by using a near-infrared laser diode (λ=802 nm; P=450 mW) in combination with a double-pass configuration for excitation of azimuthal modes and right-angle mounting of two electret microphones for signal detection. As a result of the new spectrophone setup a small-sized portable sensor system for real-time in situ elemental carbon monitoring is presented. The detection limit is estimated to 4.5×10-8cm-1 or 1.5 μg elemental carbon per m 3.

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DO - 10.1063/1.113271

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SP - 1285

JO - Applied Physics Letters

JF - Applied Physics Letters

ER -

Novel design of a resonant photoacoustic spectrophone for elemental carbon mass monitoring

Abstract

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