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US 2021/0247288 A1Published application
Particle sensor
AssigneeTeknologian tutkimuskeskus VTT Oy
InventorsPanu Koppinen, Teuvo Sillanpää, Markku Ylilammi
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Abstract
According to an example aspect of the present invention, there is provided an apparatus, comprising: a channel for receiving gas; thermophoretic unit configured to create a temperature gradient in the channel, and a particle detector for detecting particles in the gas on the basis of particle landing positions in the channel.
Claims20
An apparatus comprising:
- a channel for receiving gas,
- a thermophoretic unit configured to create a temperature gradient in the channel, and
- a particle detector configured to detect particles in the gas on the basis of particle landing positions in the channel.
An apparatus comprising at least one processing core and at least one memory including computer program code;
- the at least one memory and the computer program code being configured to, with the at least one processing core, cause the apparatus at least to:
- direct a thermophoretic unit of a sensor device to cause a temperature gradient in a channel of the sensor device,
- receive inputs from a particle detector of the sensor device configured to detect particles of a gas sample on the basis of particle landing positions in the channel, and
- derive, from the inputs, a particle concentration in the gas sample.
1 more element
A method, comprising:
- directing a thermophoretic unit of a sensor device to cause a temperature gradient in a channel of the sensor device,
- receiving inputs from a particle detector of the sensor device configured to detect particles of a gas sample on the basis of particle landing positions in the channel, and
- deriving, from the inputs, a particle concentration in the gas sample.
(canceled)
Dependencies are inferred from the claim text.