Electronic smoking device with aerosol measurement
AssigneeFontem Holdings 1 B.V.
InventorLik Hon
Life of this patent
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Abstract
An electronic smoking device and a method for sensing an aerosol during a puff action to the electronic smoking device, the electronic smoking device has an aerosol sensing unit (100) containing a light intensity detector (11, 12) to detect light reflected by an aerosol moving though the aerosol sensing unit (100). A flow speed of the aerosol is derived based on the light intensity detected and a pressure condition within the aerosol sensing unit (100) detected by a pressure sensor.
Claims18
An electronic smoking device, comprising:
- an atomizer comprising:
- a heating element for generating an aerosol;
- and
- an aerosol sensing unit comprising—
- a body having an inlet, an outlet and a chamber connecting the inlet and the outlet;
- a light intensity detecting unit for measuring light intensity within the chamber when the aerosol travels through the chamber;
- and
- a pressure sensor for detecting the pressure within the chamber.
A method for sensing an aerosol during a puff action to an electronic smoking device, comprising
- generating an aerosol;
- detecting a light intensity of the aerosol;
- deriving the flow speed of the aerosol based on the detected light intensity and pressure of the aerosol;
- determining a duration of the puff action;
- and
- deriving the volume of the aerosol during the puff action based on the flow speed of the aerosol and the duration of the puff action.
An electronic smoking vapor device, comprising:
- a housing;
- a heating element and an aerosol sensing unit both electrically connected to a controller in the housing;
- a liquid supply in the housing positioned to supply liquid to the heating element;
- with the aerosol sensing unit including a chamber having an inlet and an outlet, a light intensity detecting unit for measuring light intensity in the chamber, and a pressure sensor for detecting pressure in the chamber;
- the controller deriving a mass flow rate of vapor flowing through the chamber based on a light intensity output signal from the light intensity detecting unit and a pressure output signal from the pressure sensor.
Dependencies are inferred from the claim text.