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Transducers in Electronic Circuits

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Questions and Answers

What is the main function of a loudspeaker?

Converts low frequency electric current into audible sounds (correct)

Measures light and radiation

Converts sound pressure variations into voltage

Generates input signal to a measurement system

Which of the following is considered an 'input transducer'?

Photoemissive cell

Resistance thermometer

Microphone (correct)

Loudspeaker

In the context of transducers, what does a resistance strain gauge measure?

Pressure and displacement

Force, torque, and displacement (correct)

Temperature and radiant heat

Light and radiation

How are sensors related to transducers?

Sensors are a special type of transducer used in measurement or control systems. Signup and view all the answers

Which type of transducer may be used as both input and output in electronic circuits?

Active transducers Signup and view all the answers

What is the role of a photoemissive cell in the context of measurement?

Measures light and radiation Signup and view all the answers

What is the main purpose of a data logger?

Record electrical and non-electrical quantities over time Signup and view all the answers

Which characteristic is NOT associated with a data logger?

Portability Signup and view all the answers

What does the input scanner in a data logger do?

Selects each signal in turn Signup and view all the answers

Which device is NOT commonly used for recording the output from a data logger?

Fax machine Signup and view all the answers

What is the purpose of the signal amplifier in a data logger?

Scale linear transducer signals Signup and view all the answers

Which of the following is NOT an input signal that can be handled by a data logger?

AC, DC signals Signup and view all the answers

What is the main function of a programmer in a data logger system?

Set gain of amplifier and control sequence of operation Signup and view all the answers

Which application area is NOT mentioned for the use of data loggers?

Agricultural irrigation monitoring Signup and view all the answers

What type of system is defined by information exchange through audio-visual signals?

Audio video system Signup and view all the answers

In an audio video system, what is typically done to the high definition video signal from an HD camera?

Compress it to reduce bit rate Signup and view all the answers

What is the role of a real-time clock in relation to a programmer in a data logger system?

Commands the programmer to sequence measurements at user-selected intervals Signup and view all the answers

What does the demodulated signal output provide in an audio video system?

Compressed video bit stream, compressed sync bit stream, and uncompressed audio Signup and view all the answers