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Measurements & Electrical Analog Devices

This guide delves into the essential aspects of analog electrical measurements, covering current, voltage, and resistance. It explains direct current measurements using methods like the D'Arsonval movement, and alternating current techniques utilizing diodes and electromagnets. Voltage is measured through analog voltage meters, oscilloscopes, and potentiometers. Resistance measurement techniques include ohmmeters and bridge circuits. This resource is ideal for students and professionals seeking a thorough understanding of analog measurement devices and methods.

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Measurements & Electrical Analog Devices

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  1. Measurements & Electrical Analog Devices

  2. Introduction • Analog Devices: Current Measurements • Analog Devices: Voltage Measurements • Analog Devices: Resistance Measurements

  3. Direct Current Measurement • Simplest way – responds to the force exerted on a current-carrying conductor in magnetic field

  4. Direct Current Measurement • Application: D’ Arsonval movement inside an ammeter

  5. Alternating Current Measurement • First technique – uses diode – converts ac current into dc current • Other technique – employ electromagnets (Magnetic field increases with increasing current flow) • For large ac current – Hall effect

  6. Voltage Measurements • Analog Voltage Meters

  7. Voltage Measurements • Oscilloscope

  8. Voltage Measurements • Potentiometer

  9. Resistance Measurements • Ohmmeter

  10. Resistance Measurements • Bridge Circuits

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