Process Control and Instrumentation
Dome temperature of blast furnace stove is most accurately measured by a

Radiation pyrometer
Platinum resistance thermometer
Iron-constantan thermocouple
Platinum-platinum/rhodium ther-mocuple

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Process Control and Instrumentation
A magnetic flowmeter is

Based on the linear relationship between the fluid flow rate and the induced voltage
Based on the principle of Faraday's law
Capable of measuring the flow rate of slurries and electrolytes
All of these

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