Ear thermometer capable of automatically adjusting initial temperature and temperature control method of ear thermometer

Abstract

The invention provides an ear thermometer capable of automatically adjusting the initial temperature. The ear thermometer comprises a main ear thermometer body, a PCBA (printed circuit board assembly) main control board, an ear thermometer sensing head and an infrared sensor, wherein the size of the ear thermometer sensing head increases gradually from the top end to the bottom, and the infrared sensor is placed in the ear thermometer sensing head and used for obtaining infrared energy in a human eardrum; the sensor integrates a constant-temperature heating module, and the constant-temperature heating module is placed in the ear thermometer sensing head, connected with the PCBA main control board and used for heating the infrared sensor and the ear thermometer sensing head. The constant-temperature heating module added to the inside of a common ear thermometer sensing assembly and can directly heat the sensing head directly contacted with the ear at a constant temperature in advance, so that the ear thermometer sensing head cannot produce uncomfortable cold feel when placed into the ear canal, and discomfort resistance of an infant when the ear thermometer is used in winter and other cold environments is effectively relieved. Meanwhile, the processing unit controls heat required to be produced by the heating module according to data acquired by the infrared sensor, and accordingly the purpose of constant temperature is achieved.

Description

technical field [0001] The invention belongs to the technical field of temperature measuring equipment, in particular to an ear thermometer for medical use. Background technique [0002] Measuring body temperature can determine whether there is a fever. Body temperature measurement is divided into axillary temperature, ear temperature, forehead temperature, sublingual temperature, rectal temperature, etc. Among them, mercury thermometers or electronic thermometers are used for axillary temperature, sublingual temperature, and rectal temperature Measurement. Electronic thermometers are common medical supplies at home, but they take a long time to measure, while ear thermometers and forehead thermometers can quickly complete the measurement within a few seconds, so they are widely used. The ear thermometer uses infrared measurement technology, and the probe can be inserted into the ear canal to quickly measure the ear temperature. When using an ear thermometer to measure the...

AI Technical Summary

Problems solved by technology

In actual use, people often encounter a problem: when using in winter, because the temperature of the probe is generally lower than the ambient temperature, there will be great discomfort when the cold sensing head is put into the ear. The temperature gun did not solve the problem of discomfort

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