1, glass mercury thermometer
This is the most common thermometer, which is divided into three types: anal thermometer (thick round head), underarm thermometer (thin flat head) and oral thermometer (thin round head).
Mercury thermometer is a kind of traditional thermometer, which is made of glass and contains a mercury column that keeps rising with body temperature. Mercury thermometer has the characteristics of accurate measurement results, high stability and low price. Mercury is stored in the last mercury ball. When mercury is heated, it will expand and rise along a narrow glass tube. Therefore, a small change in body temperature will lead to a large increase in mercury in glass tubes. After taking your temperature, you have to shake the thermometer vigorously to make the mercury return to the mercury ball.
Among all kinds of thermometers, the temperature measured by this thermometer is the most accurate, but because of the fine scale, the measured temperature is not easy to read and is easily broken.
2. Electronic thermometer
This is a thermometer with digital display, which overcomes the disadvantage that the glass mercury thermometer is not easy to read.
Electronic thermometer displays the body temperature in digital form by using the definite relationship between the physical parameters of certain substances such as resistance, voltage and current and the ambient temperature. Electronic thermometer has the advantages of convenient reading, short measuring time, no mercury and no harm to human body and surrounding environment. Its disadvantage is that the accuracy of indication is influenced by electronic components and battery power supply, which is not as good as glass thermometer.
The electronic thermometer has only one shape, which can measure the temperature of anus, armpit or mouth at the same time. Under normal circumstances, if the battery is not affected with damp, it can be tested for about 10,000 times. When using it, it should avoid heavy falling to avoid circuit damage and failure.
3, nipple thermometer
Nipple thermometers are mainly used to measure the body temperature of babies who suck milk. It's the same shape as a baby's nipple. If you suspect that the baby has a fever, you can put it in the child's mouth, then take it and measure the temperature.
4, ear temperature gun
This is an otoscope-shaped thermometer. Put one end in your ear and press the trigger, you can know the body temperature in one second, and you can display the anal temperature and oral temperature respectively.
Ear thermometer is a non-contact telemetering and temperature measuring instrument (although it may be less than one centimeter). It determines the body temperature by detecting the infrared spectrum emitted by the tympanic membrane (equivalent to the inferior colliculus). According to the theory of blackbody radiation, the infrared spectra produced by objects with different temperatures are different. It is displayed by thermopile infrared detector with an accuracy of 0.65438 0℃, and then the reading is converted by microcomputer.
The allowable error of the ear thermometer itself is usually 0.2℃ in the range of 36-39℃, and 0.3℃ around 39℃. When using, incorrect use will also bring additional errors. If there is a lot of earwax in the ear canal, it will bring errors. When measuring, because the ear thermometer blocks the ear hole, the temperature field in the ear hole will change, and the indicating value will also change if the measuring time is too long. When repeated measurement, if the measurement interval is not appropriate, the reading will be different each time.
5, forehead temperature gun
The forehead temperature gun (infrared thermometer) is designed to measure the forehead temperature of human body, and it is very simple and convenient to use. 1 sec can accurately measure temperature, without laser spots, avoid potential damage to eyes, avoid contact with human skin, avoid cross infection, and measure temperature with one button to check influenza. It is suitable for home users, hotels, libraries, large enterprises and institutions, hospitals, schools, customs, airports and other comprehensive places, and can also be provided for medical personnel to use in clinics.
6. Intelligent thermometer
The wireless electronic thermometer has developed a fever reminder function. As long as the body temperature is detected to be higher than normal, the mobile phone will remind the mother that she no longer has to stay with her children all night.
In addition, it also uses high-precision thermistor, and the measurement error is only 0. 1℃, which makes each monitoring more accurate. It is worth mentioning that using the "Amiyou" app on the mobile phone can obtain body temperature data in real time and store it in the cloud, and you can enjoy cloud storage data through the app; Moreover, 15 meter barrier-free signal transmission is long, and mobile phone connection is worry-free. The performance in battery life is also excellent. Fully charged, it can be used continuously for 120 hours without worrying about charging back and forth.