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it represents. For example, suppose the signal is being used to represent temperature,
with one voltrepresenting one degree Celsius. In such a system 10 volts would
represent 10 degrees, and 10.1 volts would represent 10.1 degrees.
Another method of conveying an analogue signal is to use modulation. In this, some
base carrier signal has one of its properties alteredamplitude modulation!A"# involves
altering the amplitude of a sinusoidal voltage waveform by the source
information, fre$uency modulation!F"# changes the fre$uency. %ther techni$ues, such
as phase modulationor changing the phase of the carrier signal, are also used. &'(
In an analogue sound recording, the variation in pressure of a sound stri)ing
amicrophonecreates a corresponding variation in the current passing through it or
voltage across it. An increase in the volume of the sound causes the fluctuation of the
current or voltage to increase proportionally while )eeping the same waveformor shape.
"echanical,pneumatic, hydraulicand other systems may also use analogue signals.
level of the signal represents a different level of the phenomenon that it represents. For
example, suppose the signal is being used to represent temperature, with
one voltrepresenting one degree Celsius. In such a system 10 volts would represent 10
degrees, and 10.1 volts would represent 10.1 degrees.
level of the signal represents a different level of the phenomenon that it represents. For
example, suppose the signal is being used to represent temperature, with
one voltrepresenting one degree Celsius. In such a system 10 volts would represent 10
degrees, and 10.1 volts would represent 10.1 degrees.
level of the signal represents a different level of the phenomenon that it represents. For
example, suppose the signal is being used to represent temperature, with
one voltrepresenting one degree Celsius. In such a system 10 volts would represent 10
degrees, and 10.1 volts would represent 10.1 degrees.
Inherent noise&edit(
https://en.wikipedia.org/wiki/Volthttps://en.wikipedia.org/wiki/Modulationhttps://en.wikipedia.org/wiki/Amplitude_modulationhttps://en.wikipedia.org/wiki/Amplitude_modulationhttps://en.wikipedia.org/wiki/Frequency_modulationhttps://en.wikipedia.org/wiki/Frequency_modulationhttps://en.wikipedia.org/wiki/Phase_modulationhttps://en.wikipedia.org/wiki/Analogue_electronics#cite_note-4https://en.wikipedia.org/wiki/Microphonehttps://en.wikipedia.org/wiki/Microphonehttps://en.wikipedia.org/wiki/Waveformhttps://en.wikipedia.org/wiki/Mechanicshttps://en.wikipedia.org/wiki/Pneumatichttps://en.wikipedia.org/wiki/Pneumatichttps://en.wikipedia.org/wiki/Hydraulichttps://en.wikipedia.org/wiki/Volthttps://en.wikipedia.org/wiki/Volthttps://en.wikipedia.org/wiki/Volthttps://en.wikipedia.org/wiki/Volthttps://en.wikipedia.org/wiki/Volthttps://en.wikipedia.org/wiki/Volthttps://en.wikipedia.org/w/index.php?title=Analogue_electronics&action=edit§ion=2https://en.wikipedia.org/wiki/Modulationhttps://en.wikipedia.org/wiki/Amplitude_modulationhttps://en.wikipedia.org/wiki/Frequency_modulationhttps://en.wikipedia.org/wiki/Phase_modulationhttps://en.wikipedia.org/wiki/Analogue_electronics#cite_note-4https://en.wikipedia.org/wiki/Microphonehttps://en.wikipedia.org/wiki/Waveformhttps://en.wikipedia.org/wiki/Mechanicshttps://en.wikipedia.org/wiki/Pneumatichttps://en.wikipedia.org/wiki/Hydraulichttps://en.wikipedia.org/wiki/Volthttps://en.wikipedia.org/wiki/Volthttps://en.wikipedia.org/wiki/Volthttps://en.wikipedia.org/w/index.php?title=Analogue_electronics&action=edit§ion=2https://en.wikipedia.org/wiki/Volt