Smell enhancer based on pre-concentration principle

Abstract

The invention provides a smell enhancer based on a pre-concentration principle. The smell enhancer comprises two semiconductor refrigerators and an adsorption material between two semiconductor refrigerators, wherein the semiconductor refrigerators are connected with a power supply; the adsorption material is cooled through the Peltier effect, so that smell is adsorbed, and a power supply is reversely connected for cooling the adsorption material, and therefore, adsorbed high-concentration smell can be released. The device can be utilized for concentrating low-concentration smell, and releasing the smell, so that the smell is directly judged by the sense of smell of a user.

Description

technical field [0001] The invention relates to a device for enhancing the sense of smell based on the principle of pre-concentration, which belongs to the technical field of sense of smell enhancement. Background technique [0002] At present, there are many kinds of bionic and professional gas sensors. The principle of the gas sensor is that the chemical or physical interaction between the gas and the sensor chip produces changes that can be converted into physical signals such as light and electricity, and the physical signals are collected by the device. Analyze the type and concentration of gases. This type of gas sensor must have three elements: first, the gas acts on a physical, chemical or biological sensor; second, this action can be converted into a physical photoelectric signal; third, use a special device to detect the photoelectric signal. Read and analyze. CN201610727740.4 discloses a medical electronic nose gas concentration system and method, which uses a P...

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