Infrared pyrometers used to measure temperature are non-contact devices used to measure the surface temperatures of moving objects. They are ideal for measuring the temperature of objects which cannot be easily touched or cannot be reached by hand. The principles of infrared thermometry are the same as those of infrared thermometers. In addition, the infrared pyrometer also employs narrowband technology that permits measurement of the emittance of heat-generating objects. Since infrared radiation passes through most materials, it is possible to measure the temperature of objects in the presence of walls, floors, ceilings, etc. This ability to measure through walls with infrared pyrometers makes them suitable for measuring the temperature of objects in poorly insulated areas.
How does it work?
The working principle of infrared pyrometers is based on using an optical system to focus infrared radiation from a target into a detector. The detector then converts the radiant energy, in the form of photons, into an electrical signal that can be processed and converted into a temperature reading. The infrared radiation emitted by objects is directly proportional to temperature, and the detector provides an electrical signal proportional to the amount of infrared radiation emitted by the target. Because infrared radiation has a range of wavelengths and is quite difficult to focus on a detector system, infrared pyrometers must be designed to selectively detect only those wavelengths most effective in providing the energy required to maintain an object at a constant temperature.
What are the various categories?
- Portable infrared thermometers are often used in residential settings but are also sometimes used in commercial settings to monitor the temperature of machinery and equipment. Portable infrared thermometers have many uses, including monitoring the temperature of food and water, keeping track of room temperatures in buildings, and checking for signs of overheating and excessive heat in cars. Additionally, portable infrared thermometers can be used to detect fires and smoke.
- A fixed mounted infrared thermometer is a thermometer that has been designed to be permanently mounted somewhere in the home. They are used for measuring temperature accurately, and some of them can even give you an idea of what is going on with your home’s wiring by detecting heat.
- A single color infrared thermometer is a type of thermometer that measures temperature using a single wavelength of infrared light and, therefore, can only measure temperatures for which the emitted wavelength matches that of the sensor.
- 2-color pyrometers are much slower to read. They are typically used in situations where speed is less important than accuracy and where a greybody emitter is expected, such as measuring the temperature of an oven or furnace.
- Multi Wavelength Pyrometers – For applications of short-wavelength (SW) pyrometers in the midrange of the infrared spectrum, it is possible to cover a larger fraction of the emitted energy by increasing the sensitivity of the sensor element. This can be achieved by placing the sensor element in a very small aperture to reduce the aperture area or by increasing the field of view of the sensor element to increase the solid angle of the aperture.
- A fiber optic pyrometer is installed into an exhaust system to monitor the exhaust gas temperature. The sensor cable is positioned in the hottest part of the exhaust gas. As the exhaust gas passes over the cable, the heat is conducted to the sensor, causing it to emit light.
- The slow reciprocating linescanner generates a single line of data at a time. It does this at a rate of 10Hz, which is significantly slower than most other linescanners operating up to 200Hz per line. However, the data rate is also significantly lower, making this linescanner more suitable for applications requiring very low data rates, such as monitoring electrical grid voltages.
Summary – If you’re looking for a high-quality infrared pyrometer that is accurate, reliable, and easy to use, you should buy from Accurate Sensors. The reason why is simple: Accurate sensors have a proven track record of producing high-quality, accurate infrared pyrometers that are reliable and easy to use. Their infrared pyrometers are the best choice for all types of projects, large or small.
