In optical encoder, the inner track has just one hole which is used locate the ‘_ _ _ _of the disc.

Related MCQs

• In which of the following optic fiber sensor the fiber is simply used to carry light to and from an external optical device where the sensing takes place?
• Each satellite takes _ _ _ _ _in completing one full orbit and repeats the same ground track each day.
• Optical encoders are used to measure _ _ _ _ _
• Optical gyroscopes - operate on the principle of the _ _ _ _ _
• Optical fiber sensors are electrically ____________
• Optical fibers are not immune to ________
• Multichannel data acquisition system has __________
• Which one is the application of sensor?
• Which characteristic of LASER allows it to be used in holography?
• Which of the following can be used for the generation of laser pulse?