Pyrometers (Leaving Cert Engineering): Flashcards
📚Flashcards
Practise the cards
12 cards from this deck
ShowHide
Practise the cards
12 cards from this deck
Definition of pyrometer
Definition of pyrometer
Instrument to measure extremely high temperatures
Operating principle of thermocouple pyrometer
Operating principle of thermocouple pyrometer
Electrical conductivity of electrons
Effect of heat on electrons in metals
Effect of heat on electrons in metals
Become more active and flow more easily
Purpose of two dissimilar wires
Purpose of two dissimilar wires
Conduct electricity at different rates when heated
Source of voltage difference in thermocouple
Source of voltage difference in thermocouple
Different conductivity rates of the two wires
Voltage proportional to (thermocouple)
Voltage proportional to (thermocouple)
Temperature
Three main components of thermocouple pyrometer
Three main components of thermocouple pyrometer
Heat-resistant probe, 2 dissimilar wires, measuring instrument
Probe placement location
Probe placement location
Inside the furnace
Safety advantage of thermocouple pyrometer
Safety advantage of thermocouple pyrometer
Measures temperature without direct heat exposure
Accuracy of thermocouple pyrometer
Accuracy of thermocouple pyrometer
High accuracy even at extreme temperatures
Response speed of thermocouple pyrometer
Response speed of thermocouple pyrometer
Responds rapidly to temperature changes
Industrial applications of thermocouple pyrometer
Industrial applications of thermocouple pyrometer
Steel, furnaces, metalworking, glass, ceramics