A blackbody surface temperature source based on eddy current heating and its application method

Abstract

The invention discloses an eddy current heating-based black body surface type temperature source and a use method. The temperature source comprises a thermal insulating ceramic sleeve, and a tungstencopper alloy block is arranged in the inner cavity of the thermal insulating ceramic sleeve; a black body radiation source is arranged on the upper surface of the tungsten copper alloy block; an air gap is formed between the overall structure formed by the tungsten copper alloy block and the black body radiation source, and the inner wall of the thermal insulating ceramic sleeve; the periphery ofthe thermal insulating ceramic is sleeved with an inductive coil; the hot end of a thermoelectric couple temperature sensor is embedded in the black body radiation source; a ceramic pipe passes through the bottom of the thermal insulating ceramic sleeve, and the upper end is connected with the air gap formed between the tungsten copper alloy block and the thermal insulating ceramic sleeve; a temperature source control system comprises a cooling air supplying system and a heating control system in mutual connection; the lower end of the ceramic pipe is connected with the cooling air supplying system; and the inductive coil and the thermoelectric couple temperature sensor are both connected with the heating control system. By virtue of the eddy current heating-based black body surface type temperature source and the use method, low temperature, middle temperature and high temperature levels can be realized, the effective radiation area is relatively large, and high temperature stabilityand high temperature uniformity are achieved.

Description

technical field [0001] The present invention relates to the fields of instrument science and technology, control system, material science, heat and electric power, in particular to the field of temperature source with wide range of temperature adjustable, specifically a blackbody surface temperature source based on eddy current heating and its usage method. Background technique [0002] Temperature measurement methods can be roughly divided into two types: contact method and non-contact method. In the contact temperature measurement method, thermocouples and thermal resistance thermometers are the most widely used. The advantage of this method is that the equipment and operation are simple, and the real temperature of the object is measured. The disadvantage is that the dynamic characteristics are poor. , so it has an impact on the temperature distribution of the measured object, and it cannot measure very high temperatures due to the limitation of high temperature resistant...

AI Technical Summary

Problems solved by technology

However, there is currently no blackbody radiation source on the market that provides temperature ranges covering low, medium, and high temperature ranges, and blackbody radiation sources are generally bulky, often weighing hundreds of kilograms, difficult to carry, and slow to heat up and cool down and other shortcomings

For many applications, it is necessary to carry the temperature source to the work site for temperature comparison. The handling of such a large and heavy equipment is obviously not conducive to the development of work.

Images