Thermometer non-contact: basic types, history of occurrence and advantages

Thermometer non-contact, or pyrometer, is a device for measuring body temperature and other objects. The history of the creation of this device, its types and the principle of action, we will consider below.

Main purpose

The contactless thermometer is widely used for the remote or remote determination of body temperature, objects in the housing and communal services sector, industry, everyday life, as well as at various enterprises (in the steel and oil refining areas). The basic principle of the operation of such a device is based on a kind of measurement of the heat capacity of an object in the visible light or infrared light range.

The contactless thermometer serves as an ideal tool for the safe measurement of the temperatures of particularly hot objects. This fact makes them practically indispensable for providing the necessary control in those cases when physical interaction with an object is impossible due to its extremely high temperatures.

It should also be noted that today there are such models of contactless thermometers that are intended for medical purposes. So, a pyrometer can measure the temperature of a child's or adult's body while it is sleeping, without disturbing the patient.

History of creation

The very first non-contact thermometer was invented by Peter van Mushenbruck. Initially, the term "pyrometer" was used only for those devices that were intended to measure the visual temperature, that is, the brightness and color of the incandescent object. Today, the meaning of this word is somewhat expanded. For example, some types of non-contact thermometers are more appropriately called infrared radiometers, because they measure rather low temperatures. By the way, it was from industrial pyrometers that similar medical devices also occurred.

Types of pyrometers

The non-contact thermometer, whose reviews are only positive, is divided into the following types:

• Optical . Such pyrometers allow you to visually determine the exact temperature of a heated human body. This happens by instantly comparing its hue with the color of the thread (reference).
• Radiation . These non-contact thermometers determine the temperature using the recalculated radiation power (thermal).
• Color, spectral or multispectral . The presented pyrometers draw conclusions about the temperature of an object, comparing its thermal radiation in different spectra.

Medical non-contact thermometers

The advantages of such a part for measuring body temperature include:

• Ergonomic and beautiful design (quite conveniently lies in the hand);
• The possibility of measuring the temperature of any other surface;
• Small size (the length of the device is only 15 centimeters);
• Accurate measurements of forehead temperature;
• Possibility of election ℉ or ℃;
• Easy setting of a certain temperature value at which the alarm sounds ;
• Memory for the last 32 measurements;
• LCD backlight.

It is also worth noting that a non-contact thermometer, the price of which varies between 1.2-3 thousand rubles, can automatically hold data and turn off the power.