sine wave generation?

Question

how is sine wave generated

Answer 1

A sine or cosine wave is perfectly generated because it is a direct relationship to a rotating object. Take a bicycle wheel and mark a point on the tire with some masking tape. now spin it. If you look head on to the wheel, you will see the masking tape going up and down. If you only look at the up and down direction, it is a sine wave; as it reaches the top, it slows down and in the middle, it goes the fastest.

To make a simple generator you pass a magnet back and forth through a coil. Now if you didn't want to sit there all day pushing the magnet back and forth, you would replace your hand with a motor. Motors only turn in a circle so you need to convert the circular motion into back and forth (linear) motion. This is done with a piston just like on an old locomotive's wheels. The linear motion is in the form of a sine wave because it was produced from a circular motion.

Hope this helps and makes sense.

Answer 2

The Sine Wave Generator is an excellent tool for generating waves with speakers or wave drivers. It allows both the frequency (1-800 Hz) and amplitude of the sine wave output to be varied. Both fine and coarse frequency controls are included and the digital display features a 0.1 Hz resolution. In addition, the generator can "learn" the fundamental frequency for a particular configuration. Students can observe the quantum nature of standing wave patterns as the Sine Wave Generator jumps from one resonant frequency to the next.


https://www.electrikals.com/

Answer 3

The answer is an AC generator...
you've probably studied it in school where you have a magnetic field set up and a force is applied to a coil, the coil then rotates generating positive and negative emfs.. and the result is a sine voltage wave..
its the main principle behind how we generate power and the same reason for which all plug points have an AC voltage..

refer to the link below for more details:
http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/motorac.html