Photoacoustic method for characterizing a plant
A non-invasive photoacoustic method for plant characterization using a photoacoustic cavity on plant stems allows continuous monitoring, overcoming invasive limitations of existing methods and providing detailed chemical insights into plant activity.
FR3164792B1Active Publication Date: 2026-06-26COMMISSARIAT A LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
Patent Information
- Authority / Receiving Office
- FR · FR
- Patent Type
- Patents
- Current Assignee / Owner
- COMMISSARIAT A LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
- Filing Date
- 2024-07-19
- Publication Date
- 2026-06-26
Abstract
Photoacoustic method for characterizing a plant (10), the method comprising applying laser radiation (105) to a surface of the plant material, recording by a microphone (175) sound waves appearing by photothermal effect in a photoacoustic cavity (155) positioned around said surface of the plant, the laser radiation (105) having been applied to said surface through the cavity (155). The plant surface is a surface of a stem (or root or petiole) (11) of the plant, and the method comprises inserting a section (16) of said stem (11) into a support comprising the cavity (155) equipped with a microphone sensor (175) and a window (170) for transmitting the laser power, with sealing means (160, 162) placed around the stem (11) at each of the two ends of said section (16). Abbreviated figure: 1
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