A device for automatically measuring the thermocouple coefficient in a t12-type soldering iron core and its application method

Abstract

A device for automatically measuring the thermocouple coefficient in a T12-type soldering iron core and its use method. After the T12-type soldering iron core is fully contacted with the K-type standard thermocouple, the T12-type soldering iron core is heated, and the heat is conducted to the K-type standard thermocouple. Use the microprocessor control circuit to measure the voltage of the K-type standard thermocouple, and obtain the temperature of the soldering iron core according to its thermocouple coefficient, and at the same time measure the voltage of the thermocouple in the T12-type soldering iron core to be tested; and automatically control the electrification of the T12-type soldering iron core current to heat the T12-type soldering iron core to different temperatures, repeatedly measure the voltage of the thermocouple in the T12-type soldering iron core at different temperatures, and finally obtain the coefficient table of the voltage value and temperature of the thermocouple in the T12-type soldering iron core, and finally this coefficient table Output to the operation control terminal through the USB interface. The invention can adjust the temperature of the soldering iron core according to requirements, control the temperature within a certain range, avoid damage to the performance of the soldering iron core due to excessive temperature, and overcome the problems that the current soldering iron core thermometer cannot measure automatically, the data is inaccurate, and the operation is inconvenient.

Description

technical field [0001] The invention relates to a device for automatically measuring thermocouple coefficients in a T12-type soldering iron core and a method for using the same, belonging to the field of temperature measurement and control of electronic technology applications. Background technique [0002] The electric soldering iron is a basic welding tool, and the soldering iron core as the main component plays the role of converting energy and transmitting heat. T12 type soldering iron core is a kind of electric soldering iron core commonly used in the market at present. It is a soldering iron core that integrates heating wire and temperature measuring thermocouple. The coefficient calculates the temperature and adjusts the heating time. [0003] Therefore, when designing the control circuit of the T12 soldering iron core, it is necessary to know the thermocouple coefficient in the T12 soldering iron core in order to accurately control the temperature of the soldering i...

AI Technical Summary

Problems solved by technology

The currently widely used soldering iron core thermometer requires manual point-by-point measurement, single function, and inaccurate temperature measurement. There is no ready-made device for measuring the thermocouple coefficient of T12 soldering iron core on the market.

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