Infrared thermometer for achieving measurement mode switching by utilizing Hall element

Abstract

The invention discloses an infrared thermometer for achieving measurement mode switching by utilizing a Hall element, and relates to the technical field of infrared thermometers. The infrared thermometer comprises an infrared thermometer body and a dismountable rotatable cap arranged at the measuring end portion of the infrared thermometer body, the top portion of the infrared thermometer body is provided with a temperature measuring probe carrying a temperature measuring element, a Hall element is fixedly installed at the internal portion of the temperature measuring probe, and one end of the internal portion of the rotatable cap is embedded with an annular magnet. According to the invention, the Hall element is used for achieving measurement mode switching, a mechanical change-over switch is not required to be installed, the structural design is simplified, and the situation that the measurement mode cannot be switched due to the deviation of the installation position of the mechanical change-over switch or poor contact of the mechanical change-over switch is avoided; and moreover, the function of the mechanical change-over switch is achieved by applying a magnetic field detection technology, so that the working stability is improved, and the service life is greatly prolonged.

Description

technical field [0001] The invention relates to the technical field of infrared thermometers, in particular to an infrared thermometer using Hall elements to switch measurement modes. Background technique [0002] Measuring body temperature is an important part of medical applications to determine whether there is a fever. Body temperature measurement is divided into axillary temperature, ear temperature, forehead temperature, sublingual temperature, rectal temperature, etc., of which axillary temperature, sublingual temperature and rectal temperature are all Measure with a mercury thermometer or an electronic thermometer. The infrared thermometer uses infrared temperature measurement technology to quickly measure the ear temperature and forehead temperature of the human body. Both mercury thermometers and electronic thermometers take a long time to measure, and mercury thermometers are fragile and unsafe, while infrared thermometers can complete the measurement within 1 se...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the existing defects and provide an infrared thermometer that uses Hall elements to switch measurement modes, which can effectively solve the problem that the existing infrared thermometers proposed in the background technology are either ear thermometers, which can only Measuring ear temperature; either it is a forehead temperature gun, which can only measure forehead temperature. The mode switching of the existing dual-mode infrared thermometer is realized by a mechanical switch, which has a complex structure and is prone to poor contact and cannot switch the measurement mode.

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