Temperature measurement technology is a subfield of physical measurement technology and a collective term for procedures, methods and processes for recording, controlling, monitoring, testing and determining temperatures. Temperature measurement technology provides information about the thermal state of solid, liquid and gaseous substances. Its results indicate how hot, warm or cold an object, a surface, a medium, a fluid or a system is. Temperature is measured primarily in degrees Celsius (°C) or Kelvin (K). In addition, there are other temperature scales such as degrees Fahrenheit (°F) or degrees Reaumur (°Ré). Tactile or non-contact thermosensors, thermocouples and resistance thermometers are used in industrial applications as a means of temperature measurement. Among other things, temperature measurement technology is in the service of process control, operational safety, quality assurance and process control.
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