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ENGR 5520: Sensors and Actuators, Overview Part 1

A sensor is a device that changes a physical parameter to an electrical output. As against, an actuator is a device that converts an electrical signal to a physical output. …Sensor generates electrical signals while an actuator results in the production of energy in the form of heat or motion.  

How to Read a Schematic

How to read a schematic, follow electronics circuit drawings to make actual circuits from them. This starts with the schematic for a very simple circuit with just some batteries, resistor, switch and an LED. Then it talks about Earth ground and chassis ground. Finally it moves on to a crystal radio amplifier schematic and adds a diode, potentiometer and capacitors.  

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