Sensorvorrichtung, Photoakustische Bildgebungsvorrichtung und Verfahren zur Erfassung einer Messgrösse

Details

Veröffentlichungs-Nr.

EP4386329

Aktenzeichen

EP22214039

Anmeldetag

16. Dezember 2022

Veröffentlichung

20. August 2025

Erteilung

20. August 2025

Rechtsraum

EP

IPC

G01D5/26G01K11/32// A61B5/00

Abstract

A sensor device (100) comprises: a plurality of sensors (102a-f), wherein each sensor (102a-f) comprises an optical resonance element (106a-f) configured to be affected by a measurand and has a mutually unique optical resonance frequency; the sensors (102a-f) being configured to receive at least one of a first and a second sensor interrogation signals forming a plurality of signal component pairs, wherein a difference in frequency between the frequencies in the signal component pair is different for different signal component pairs; wherein each sensor (102a-f) is configured to modulate an optical intensity of at least one frequency of a mutually unique signal component pair; and a detector (110), being configured to receive the first sensor interrogation signal and the second sensor interrogation signal, wherein the detector (110) is configured to detect a plurality of mutually unique beat frequencies for detecting a plurality of measurements by the plurality of sensors (102a-f).

Anmelder

Firmen

IMEC VZW
Imec VZW

Land

🇧🇪 Belgien

Fachgebiete