Self-checking temperature sensor based on curie point sensitive material

Abstract

A self-verifying temperature sensor based on Curie point sensitive materials, including a charging socket, a battery, a power switch, a gear power switch, a magnet, a reed switch, a barrel, a motor deceleration mechanism, and a remote control circuit; There are guide rods and linkage rods on the upper and outer ends of the steel. The reed switch is installed outside the magnetic steel, and the magnetic steel is located in the lower part of the cylinder body; The inner threaded pipe under the power output shaft is connected with the linkage rod; the charging socket, battery, power switch, remote control circuit, and gear power switch are installed in the component box, and are electrically connected with the motor reduction mechanism. In the present invention, the operator can adjust the distance between the magnetic steel probe and the monitored object through simple operation or mobile phone operation, and then realize the control of the power switch contact closing or opening at different temperatures of the monitored object, thereby achieving The advantage of a wider range of applications.

Description

technical field [0001] The invention relates to the technical field of temperature sensors, in particular to a self-checking temperature sensor based on Curie point sensitive materials. Background technique [0002] Temperature sensor is a widely used device, mainly including resistance type, contact type and so on. The existing magnet-based temperature sensor (for example, the magnet temperature control mechanism in the rice cooker) mainly uses the magnet steel to be affected by the temperature, and when it rises to a certain temperature, it temporarily loses its magnetism (also known as the Curie point) and is controlled by the relevant mechanism. The power switch is turned on or off, so as to achieve the purpose of automatic control. [0003] At present, sensors based on magnetic steel as temperature probes are fixedly installed at the monitored point due to their structural limitations, so they can only realize one kind of temperature up or down, power switch on or off ...

AI Technical Summary

Problems solved by technology

[0003] At present, sensors based on magnetic steel as temperature probes are fixedly installed at the monitored point due to their structural limitations, so they can only realize the corresponding temperature up or down, power switch on or off control, and change the control at any time if necessary. Places with high temperature cannot be used normally (for example, the hot air output by the electric heating equipment enters the drying room to dry the product, and the product in the drying room needs to be lowered or raised after the product is dried to a certain extent), and its application has great limitations.

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