WorksheetsUnit-5 optical transducer
Total questions: 10
Worksheet time: 5mins
Optical fiber sensors are electrically
active
passive
active as well as passive
cannot be determined
Optical fibers are not immune to
electronic disturbances
magnetic disturbances
ambient light interference
electromagnetic disturbances
Optical fiber sensors are not immune to electromagnetic disturbances
True
False
Optical transducers classified as
Photoemissive transducers
Photoconductive transducer
Photovoltaic transducer
All the above
Energy gap for silicon and germanium,
For Si, Eg=1.22eV and For Ge, Eg=1.1eV
For Si, Eg=1.1eV and For Ge, Eg=0.72eV
For Si, Eg=0.72eV and For Ge, Eg=1.1eV
For Si, Eg=1.42eV and For Ge, Eg=2.7eV
Which of the following is correct for a digital transducer?
Measures digital quantity only
Gives digital output
Doesn’t measure analog input
None of the mentioned
LDE is used for measuring
Linear acceleration
Angular acceleration
Linear displacement
Linear acceleration
Datums are used for
Obtaining digital output
Converting analog data to digital data
Storing data
Displaying output
Absolute encoders require data
True
False
Why positive feedback is used in a pressure transducer?
To improve stability
To maintain stability constant
To maintain vibratory motion
None of the mentioned
