Electronic Projects for the Raspberry Pi - Book 2: Interfacing to Analogue Signals by Seggy T Segaran

Author:Seggy T Segaran [Segaran, Seggy T]
Language: eng
Format: azw3, epub
Published: 2017-03-11T05:00:00+00:00

Using the information from the previous projects and an amplifier with a gain of 500, design a Python program to function as a weighing scale.

Project 9: Measuring Power Using a Current Clamp

When working with analogue signals sometimes there is a requirement to measure AC voltages. Up to now we have only dealt with DC voltages that vary dependent on the input but do not vary in time. AC signals vary all the time and normally have a frequency (or a number of frequencies) associated with them.

For example, mains voltage varies at 50 Hz which means that it varies 50 times a second. Musical tones vary at hundreds of Hz a siren at thousands of Hz.

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