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A compact, selective and embedded-system enabled photoacoustic sensor for multiple trace detection

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Abstract

A compact, selective and embedded-system enabled photoacoustic sensor was established with self-designed modules which replaced laser controller, signal generator and Lock-in Amplifier. The results exhibit that normalized noise equivalent absorption (NNEA) coefficient achieves 2.12×10-8cm-1W/Hz-1/2.

© 2021 The Author(s)

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