What if it is impossible to measure the temperature at a distance with conventional thermometers? After all, they are intended for the contact determination of the degree of the medium, water or body. It was for this purpose that the infrared temperature sensor was invented in the 60s of the last century in America. A little later, the tool appeared on the Russian markets. The miracle thermometer received a different name - a pyrometer or an infrared gun.
Sensor Description
Pyrometer is a modern device for measuring the temperature of absolutely any object. The definition is based on an infrared sensor that allows you to read infrared radiation from an object. Next, it reorganizes the resulting indicator into the usual temperature and displays it on the meter screen. Able to work at temperatures up to 1000 degrees.
Features of work
The main components of an infrared temperature sensor are:
At the time of heating the infrared receiver, a voltage is created or the resistance changes, which is converted to the usual Celsius or Fahrenheit numbers, and the result is displayed on an electronic display.
For optimal temperature determination, the electronic device must be pointed at the object and the trigger released (press the button). The distance between the pyrometer and the measured object may be different, depending on the manufacturer and model. This indicator should be prescribed in the instructions of the infrared gun.
Pros and cons
The advantages of an infrared temperature sensor include:
- the ability to measure an object at very high temperatures;
- distance application;
- suitable for working with any materials;
- minimum error;
- safety when working with hazardous measuring objects;
- easy to use.
It is worth noting the disadvantages of the device:
- impossibility to use if the area of the object is less than the control area;
- for each measured material it is necessary to change the pyrometer settings.
Application area
Non-contact sensors are widely used in various industries, such as automotive, metallurgy and food fields. Used in factories for the production of paper, cardboard, plastic, glass, ceramics.
Allows you to control the temperature of the cargo in transported containers and vans.
They can be integrated into various electrical control structures, for example, infrared heaters with a temperature sensor or security control systems.