Kapazitiver Sensor, Vorrichtung und Verfahren zum Selektiven Zählen Einzelner Tröpfchen und Partikeln mit Wasser in Luft

Details

Veröffentlichungs-Nr.

EP4745555

Anmeldetag

18. November 2024

Veröffentlichung

20. Mai 2026

Rechtsraum

EP

IPC

(UNIV YONSEI IACF et al.)

Abstract

The invention relates to a method and a device adapted for the selective counting of individual respiratory droplets and particles comprising water within ambient air. The method is based on a planar capacitive sensor to which droplets and particles are led with a nozzle, which increases their velocity. Entering the electric field of the capacitive sensor, the respiratory droplets and particles change the sensor's capacitance. Because the respiratory droplets and particles containing water exhibit a notably distinct dielectric constant compared to other airborne particles and the air itself, they are counted in a selective way independently on other particulate matter air pollutants. The alteration in the capacitance is converted into an electrical signal, which is measured by known methods.

Anmelder

Firmen

Jozef Stefan Institute
Nanotul d.o.o.

Land

🇸🇮 Slowenien