Non-contact temperature measurement electromagnetic oven and temperature measuring method

A non-contact, electromagnetic cooker technology, applied in the direction of thermometers using directly heat-sensitive electric/magnetic elements, using electromagnetic means, thermometers, etc., can solve the problems of control principle description, and the prior art does not give any enlightenment, etc., To achieve the effect of increasing the degree of automation
CN102235701AInactive Publication Date: 2011-11-09叶小舟 +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
叶小舟
Publication Date
2011-11-09
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a non-contact temperature measurement electromagnetic oven and a temperature measuring method. The electromagnetic oven comprises an electromagnetic oven shell, an electromagnetic oven platen, a heating coil under the electromagnetic oven platen, a control circuit and a heating pot on the electromagnetic oven platen, as well as a magnetic temperature sensing element which is closely contacted with the bottom of the heating pot, a temperature measurement element which is arranged under the electromagnetic oven platen and corresponds to the magnetic temperature sensing element, wherein the temperature measurement element comprises a temperature measurement induction coil and a magnet exciting coil; the magnetic temperature sensing element is a ferromagnet or ferrimagnetics; a magnetic field of the magnetic temperature sensing element changes when the magnetic induction intensity of the magnetic temperature sensing element changes with temperature changes, by utilizing the temperature characteristics of the magnetic conductivity of the magnet and matching with the magnet exciting coil and the temperature measurement induction coil; and an electric signal of the corresponding temperature is generated when the change is reflected in the temperature measurement induction coil, and temperature detection and control are realized through the control circuit. According to the electromagnetic oven, the effect of automatic temperature control can be achieved, other set cooking functions can be realized, and the automatic degree of the electromagnetic oven is further improved.
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Description

technical field

[0001] The invention relates to an electromagnetic cooker and a temperature measuring method, in particular to an electromagnetic cooker and a temperature measuring method for realizing non-contact temperature measurement by utilizing the magnetic permeability temperature characteristics of iron or ferrimagnets. Background technique

[0002] Usually, the oil temperature for frying food is about 160-170°C. If you want to deep-fry the food, the oil temperature is about 190°C. At 90-120°C, the bubbles disappear and the oil surface is calm; at 120-170°C, the oil temperature rises sharply, but the oil surface remains calm; at 170-210°C, there is a small amount of blue smoke and there are a few small ripples on the oil surface; once it reaches 210- At 250°C, a large amount of blue smoke containing acrolein will be formed, and various poisons such as thermal polymers of oil and polycyclic aromatic hydrocarbons will be produced. Therefore, temperature control in the ...

Claims

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