Product Category
Electronic cigarette pressure sensor
Electronic cigarettes do not contain tar and suspended particles and other harmful ingredients, with the improvement of people's health awareness, smoking electronic cigarettes is becoming a trend. In addition, the cigarette oil of the electronic cigarette can be flavored by adding flavoring agents of different components, and the user can select the taste of the cigarette oil according to his/her own preference.
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The flow sensor is based on the principle of heat conduction. The sensor structure consists of a micro heat source located on the sensitive film, an upstream temperature sensor and a downstream temperature sensor symmetrical to the micro heat source, and an ambient temperature sensor located on the silicon substrate. When there is no fluid flow on the sensor surface, the temperature field around the micro heat source is symmetrically distributed, such as (a); When there is fluid flow on the sensor surface, the temperature field around the micro heat source is disturbed due to the cooling effect of the fluid on the micro heat source, and the upstream and downstream of the micro heat source are asymmetrically distributed, as shown in Figure (B), the greater the asymmetry of the temperature around the micro heat source. The flow rate of the fluid is obtained by the temperature difference between the upstream and downstream temperature sensors
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The flow sensor is based on the principle of heat conduction. The sensor structure consists of a micro heat source located on the sensitive film, an upstream temperature sensor and a downstream temperature sensor symmetrical to the micro heat source, and an ambient temperature sensor located on the silicon substrate. When there is no fluid flow on the sensor surface, the temperature field around the micro heat source is symmetrically distributed, such as (a); When there is fluid flow on the sensor surface, the temperature field around the micro heat source is disturbed due to the cooling effect of the fluid on the micro heat source, and the upstream and downstream of the micro heat source are asymmetrically distributed, as shown in Figure (B), the greater the asymmetry of the temperature around the micro heat source. The flow rate of the fluid is obtained by the temperature difference between the upstream and downstream temperature sensors.
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