What type of temperature control equipment is commonly employed in power engineering for high temperature applications?

Optical pyrometers are specifically designed for high-temperature measurement, making them especially suitable for applications in power engineering where temperatures can exceed those that standard thermometers and thermocouples can measure effectively.

These devices utilize the principle of radiation emitted by hot objects to determine their temperature without needing direct contact. This is particularly valuable in high-temperature scenarios, such as in furnaces or during metal processing, where contact sensors might fail due to extreme heat or thermally conductive environments.

While thermocouples and digital thermometers can also measure temperature, their effectiveness can diminish at elevated temperatures, especially when approaching the limits of their designed operational range. Manometers, on the other hand, are used to measure pressure rather than temperature and therefore are not applicable in this context.

Thus, the distinct capability of optical pyrometers to accurately gauge high temperatures from a safe distance makes them the preferred choice for high-temperature applications in power engineering settings.