Digitales Detektionsverfahren für Suspendierte Partikelförmige Stoffe

Details

Veröffentlichungs-Nr.

EP4775950

Anmeldetag

6. Januar 2026

Veröffentlichung

15. Juli 2026

Rechtsraum

EP

IPC

G01N15/0205

Abstract

A digital detection method for suspended particulate matter is disclosed and includes following steps: providing a particle sensor (1), wherein the particle sensor (1) includes an airflow channel (11), a miniature pump (12), a laser emitter (13) and a photodiode (PD) (14). The miniature pump (12) guides air having suspended particles toward a measuring region (A), and the laser emitter (13) positioned orthogonal to the measurement region (A) emits a laser beam, so as to generate scattered light. The scattered light is captured by the photodiode (PD) (14) and transformed into an electrical signal. The photodiode (14) uses a built-in digital algorithm to divide the electrical signal into N energy intervals (b). Numbers of the suspended particles are recorded cumulatively for each energy interval (b). A fine data distribution is formed for data processing and accumulation to calculate size of particles, total number of particles and concentration of the suspended particles for each particle size range (PM1, below PM2.5, and below PM10).

Anmelder

Firma

Microjet Technology Co., Ltd.

Land

🇹🇼 Taiwan

Fachgebiete