What Are Pyrometers? Types, Advantages, & Applications


The coldness or hotness of any substance or object is a physical quality referred to as “temperature”. According to requirements, it can be measured in different scales and units. By using various devices and methods, any material’s temperature can be measured. To measure a substance’s or physical property’s energy level, different temperature measuring devices are utilized.

According to a material’s physical property, measurements of temperature can be determined by using the following:

  • Pyrometers
  • Infrared thermometers
  • Pressure gas thermometers
  • Constant volume gas
  • Bulb and capillary devices
  • Bimetallic devices
  • Silicon diodes
  • Thermocouple
  • Radiation thermometers
  • Electric resistance thermometers
  • Basic thermometers and more

Measurements can include Fahrenheit (F), Celsius (C), or Kelvin (or “k”, for an SI unit of temperature).

Pyrometer Types

There are two types of classifications of Pyrometers used to detect various objects’ temperatures. They are as follows:

  • Infrared/Radiation Pyrometer: Used in the infrared region to determine thermal radiation. It measures a targeted object’s temperature from the emitted radiation.
  • Optical Pyrometer: Utilized for detecting the thermal radiation of the visible spectrum.

Disadvantages and Advantages

There are disadvantages and advantages to using Pyrometers, which are frequently compared with thermometers. The following are advantages:

  • At variable distances, the temperature of different kinds of objects can be measured.
  • While measuring an object’s temperature, they offer good stability.
  • Fast response time.
  • Without coming into contact with the object, its temperature can be measured. This is referred to as “non-contact measurement”.

Then again, there are a couple of disadvantages to using Pyrometers which are as follows:

  • Due to various conditions – think thermal radiation, smoke, and dust – the device’s accuracy can be affected.
  • Though generally rugged, Pyrometers tend to be expensive.

Applications for Pyrometers

Various applications can benefit from the use of Pyrometers including the following:

  • Furnace temperatures can be measured
  • The temperature of highly heated materials and liquid metals can be measured
  • They can measure steam temperature for steam boilers
  • To determine the heat at the top of a balloon, they can be used for hot air balloons
  • For smelting industries
  • For metallurgy industries
  • From a greater space, they can measure the temperature of constant or moving objects

Pyrometers Versus Thermometer – What’s the Difference?

If you’re unfamiliar with a Pyrometer, you may wonder what the difference is between it and a thermometer. Here are the basics:

  • A Pyrometer measures high temperatures as a non-contact, remote sensing thermometer
  • A thermometer is a contact measurement device used for measuring temperatures

Infra-View Has the Tools You Need

One type of Pyrometer will likely fit your application better than another. There are various kinds, including the following:

  • Generator bus duct thermometer
  • Portable
  • Fixed mount

Could you use some help in selecting a Pyrometer? We’ve got you covered. Our Pyrometer selector page can be of assistance.

You can purchase a vast array of products from Infra-View, including the following:

  • FEGT
  • Boiler thermometer
  • Infrared boiler thermometer and more

Tools for the following can easily be purchased:

  • Gas temperature monitoring
  • Temperature profiling
  • Gas and furnace temperature monitoring
  • Flu exit gas temperature
  • Boiler temperature monitoring

Contact us today at 201-641-2130 for more information!

Use our Pyrometer Selector to find the right solution for your temperature monitoring needs and place a request for quote.

Click Here for Pyrometer Selector
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