Thermometry: The thermometry is the branch of temperature measurement, which discusses the strategies of measuring the temperature at 510০ C and below. The tool used in this purpose that is a thermometer. There has many types of thermometer.
Pyrometry: Pyrometry is the branch of temperature measurement, which discusses the strategies of measuring the temperature at 510০ C and above it is called pyrometry, and the tool used in this purpose is called pyrometer. There has a
How to Temperature measurement by color?
It is very easy to determine the temperature by observing hot metal’s color. There is a moderate relationship between the metal’s temperature and color, which is given in the following list. Without an unwise person, the temperature idea can be given by observing the color of hot metal.
|Dark blood color||650|
|Red blood color||700|
|Bright blood color||800|
Modern Temperature Measurement Tools
|Instruments||Temperature limit (°C)|
|Thermometer inside the glass||About – 37° to + 500°|
|The mercury thermometer is molten silica||About – 37° to + 510°|
|Gas Extend Thermometer (N2 )||About – 129° 7 to + 427°|
|Metal propagation thermometer||About – 73° to + 537°|
|Resistance pyrometer||About – 212° to + 593°|
|Thermoelectric pyrometer||0° to + 1648°|
|Thermoelectric pyrometer (Base metal)||0° to + 1000°|
|Segar Cone||600° to + 2000°|
|Radiation pyrometer||538° from upwards|
|Optical pyrometer||650° from upwards|