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Signal Conditioning

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Kan Zheng edited this page Sep 30, 2015 · 10 revisions

#What's Signal Conditioning Signal Conditioning is one process in signal processing. Before processed in MCU(Arduino), signals acquired from sensors must be conditioned to meet the demand of the MCU . Before used to control the devices, signals processed by MCU also must be conditioned to meet the demand of power system.

#Example 1 Generally, the output of sensors is resistance. To become an available input for Arduino, it's important to build a circuit to convert the change of resistance to the change of voltage(lower than 5V).

#Example 2 As the only function of MCU is processing the signal, buffer, as a signal conditioner, is necessary to drive objects/devices(like LEDs) with power system, especially high power loads.

#Combined Examples Through combining Ex1 and Ex2, we get a complete project about using photoresistance to control LEDs.

#Reference Signal Conditioning in WIKI
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[Amplifier] (https://en.wikipedia.org/wiki/Amplifier)

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