Verfahren, Vorrichtung und System zur Ultraschallschätzung der Physiologischen Reaktion eines Pflanzenblattes

Details

Veröffentlichungs-Nr.

EP4343319

Aktenzeichen

EP22214840

Anmeldetag

20. Dezember 2022

Veröffentlichung

10. Dezember 2025

Erteilung

10. Dezember 2025

Rechtsraum

EP

IPC

G01N29/12

Abstract

The invention belongs to the field of ultrasonic measurements and systems. It discloses a method, device, and system for ultrasonic estimation of a plant-leaf (2) physiological response and its change due to environmental stimuli, for example, characterizing lack of irrigation. In contrast to known solutions using a single, short broadband ultrasound pulse, the present invention employs spread spectrum signals, for example, Arbitrary Position and Width Pulses Spread Spectrum (APWP SS) signals, frequency-modulated ("chirp") or coded sequences, to achieve a sufficient measurement SNR, for practically feasible estimation of important physiological leaf (2) characteristics such as such as relative water potential RWC, turgor loss, turgor pressure, water potential. The invention solves in the time domain the inverse problem of the best matching of the recorded ultrasonic measurement signal to the leaf (2) model essential parameters: thickness, density, ultrasound propagation velocity, and attenuation. This invention enables robust measuring of leaf (2) responses in disturbed conditions (temperature, humidity, pressure changes, etc.) in field conditions, and is practical for use by agriculture specialists and farmers.

Anmelder

Firmen

Kaunas University of Technology
Spanish National Research Council (CSIC)

Land

🇱🇹 Litauen

Fachgebiete