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1. (WO2018202909) PARTICULATE MATTER SENSING

Pub. No.:    WO/2018/202909    International Application No.:    PCT/EP2018/061677
Publication Date: Fri Nov 09 00:59:59 CET 2018 International Filing Date: Tue May 08 01:59:59 CEST 2018
IPC: G01N 15/14
Applicants: KONINKLIJKE PHILIPS N.V.
Inventors: SHI, Jun
CHEN, Weizhong
ZHANG, Peng
Title: PARTICULATE MATTER SENSING
Abstract:
A particle sensor device (100) for determining an ambient particle concentration in an air flow through the particle sensor device is disclosed. The particle sensor device comprises an air flow channel (110) extending between a first opening (111) open to an ambient environment including the ambient particle concentration and a second opening (113) open to said ambient environment, the air flow channel comprising a sensing area (115) including a particle sensor (120); and a processor (130) coupled to the particle sensor and configured to derive the ambient particle concentration from a first signal received from the particle sensor, said first signal being indicative of a first particle count in a wind- induced air flow through the air flow channel when the particle sensor device is stationary; and a further signal received from the particle sensor, said at least one further signal being indicative of a further particle count in an air flow through the air flow channel induced by a shaking motion of the particle sensor device to eliminate the influence of wind on the air flow through the air flow channel. Also disclosed are an electronic device comprising such a particle sensor device and a method for determining an ambient particle concentration with such a particle sensor device.