A professional manufacturer for all kinds of thermometers,built in 1979

The principle of ear thermometer

Views: 8     Author: Site Editor     Publish Time: 2020-06-18      Origin: Site

The radiant energy of the human eardrum mainly comes from the 6~15μm area.

Ear thermometers usually use a thermopile sensor, which contains the above-mentioned optical system, photodetector-thermopile, thermistor.

The thermopile sensor detects the far-infrared radiation intensity of the human eardrum from 6 to 15 μm. This measurement result is a relative quantity, that is, the obtained result is related to the radiation intensity of the measured object and the temperature of the thermopile itself.

The thermistor is used to measure the temperature of the thermopile itself.

By calculating the radiation intensity and the temperature of the thermopile itself, the temperature of the measured object can be obtained.

Product Category

Call Us

 Tel: +86 (0)574 62914086
 Fax: +86 (0)574 62913278
 Email: manager@chinazhiling.com
 Address: Dayin Industral Park Yuanqu Rd.11# Yuyao, Zhejiang,China (315000)

digital barbecue thermometer

Copyright  2019 Yuyao Shuanghe Electron Instrument Co., Ltd. All Rights Reserved.  Support by haipai