18 Questions
What is the main function of a loudspeaker?
Converts low frequency electric current into audible sounds
Which of the following is considered an 'input transducer'?
Microphone
In the context of transducers, what does a resistance strain gauge measure?
Force, torque, and displacement
How are sensors related to transducers?
Sensors are a special type of transducer used in measurement or control systems.
Which type of transducer may be used as both input and output in electronic circuits?
Active transducers
What is the role of a photoemissive cell in the context of measurement?
Measures light and radiation
What is the main purpose of a data logger?
Record electrical and non-electrical quantities over time
Which characteristic is NOT associated with a data logger?
Portability
What does the input scanner in a data logger do?
Selects each signal in turn
Which device is NOT commonly used for recording the output from a data logger?
Fax machine
What is the purpose of the signal amplifier in a data logger?
Scale linear transducer signals
Which of the following is NOT an input signal that can be handled by a data logger?
AC, DC signals
What is the main function of a programmer in a data logger system?
Set gain of amplifier and control sequence of operation
Which application area is NOT mentioned for the use of data loggers?
Agricultural irrigation monitoring
What type of system is defined by information exchange through audio-visual signals?
Audio video system
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
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
What does the demodulated signal output provide in an audio video system?
Compressed video bit stream, compressed sync bit stream, and uncompressed audio
Learn about transducers, devices that convert energy into electrical signals or vice-versa. Explore how transducers like loudspeakers and microphones function in electronic circuits.
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