What type of thermometer detects infrared energy emissions to measure temperature?

The infrared thermometer is specifically designed to detect infrared energy emissions and convert that energy into temperature readings. This type of thermometer operates based on the principle that all objects emit infrared radiation proportional to their temperature. By focusing this infrared radiation onto a sensing element, the thermometer can accurately measure the temperature of an object from a distance without requiring direct contact.

This is particularly advantageous for measuring the temperature of moving objects, hazardous materials, or areas that are difficult to access. Infrared thermometers can provide instant readings, making them useful in various applications, including electrical maintenance, food safety, and HVAC diagnostics.

The other options, while related to temperature measurement, do not specifically focus on detecting infrared energy emissions in the same manner. For instance, a thermoelectric pyrometer relies on a thermoelectric effect to measure temperature, and an optical pyrometer uses visible light radiation rather than infrared. A sensible heat gauge typically measures temperature changes in fluids but does not operate on infrared detection principles.