A photoacoustic gas sensor module including a light emitter unit and a detector unit
作者： Guenther Ruhl , Gottfried Beer , Horst Theuss , Sebastian Beer , Stefan Kolb
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摘要: The present invention relates to a photoacoustic sensor and gas module. comprises: light emitter unit including an optical configured emit beam of pulses having predetermined repetition frequency wavelength corresponding absorption band the be sensed; detector microphone, wherein is arranged such that traverses area receive gas, microphone capable receiving signal oscillating at frequency.
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