Patent ID: 11940370
Assignee: SENSIRION AG
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 18:
19. The particulate matter sensor device according to claim 1,
wherein the additional flow opening is configured to create the additional flow in such a manner that the additional flow overflows the radiation detector after the additional flow has entered the flow channel;
wherein the additional flow opening is arranged in a radial wall section of the flow channel, the radial wall section radially delimiting the flow channel upstream of the radiation detector;
wherein the flow channel, at a position where the additional flow enters the flow channel, defines a longitudinal direction, the longitudinal direction corresponding to a flow direction of the aerosol sample at the position where the additional flow enters the flow channel; and
wherein the additional flow opening is configured to inject the additional flow into the flow channel at an angle of 30° to 60° relative to said longitudinal direction.