Our view to the questions from last week:
- Do thermocouples measure absolute temperature or temperature difference? Answer: Temperature difference because the output is proportional to the temperature difference between the reference and the measuring junctions.
- Do resistance thermometers measure absolute temperature or temperature difference? Answer: Absolute temperature because the sensor's resistance is dependent on the its local average temperature.
- What is the temperature scale in use in the UK and is Centigrade the unit of measurement? Answer: The International Temperature Scale of 1990 with Celsius as the unit of measurement.
- Is temperature the amount of thermal energy an object has? Answer: Temperature is better described as the intensity of the thermal energy or the kinetic energy density.
- Do temperature measurements need an uncertainty associated with them? Answer: All measurements are useless without an uncertainty.