optical pyrometer

Which of the following is the primary component of an optical pyrometer?

• Prism

• Photodiode

• Lens

• Photomultiplier tube

What is the basic principle of operation of an optical pyrometer?

• Measurement of thermal radiation

• Measurement of electrical conductivity

• Measurement of thermal conductivity

• Measurement of temperature gradient

Which of the following factors can affect the accuracy of temperature measurement using an optical pyrometer?

• Distance between the pyrometer and the object

• Presence of ambient light

• Emissivity of the object

• All of the above

What is the emissivity of an object?

• The object's ability to conduct electricity

• The object's ability to emit thermal radiation

• The object's ability to reflect light

• The object's ability to absorb heat

What is an optical pyrometer used for?

• Measuring temperature

• Measuring pressure

• Measuring humidity

• Measuring velocity

How does an optical pyrometer measure temperature?

• By analyzing the color of the object being measured

• By measuring the object's weight

• By detecting the object's magnetic field

• By analyzing the object's surface texture