Incremental encoder - speed calculation

[SamSamantha]

Hello,

Can anyone help please?

I would like to know the linear speed of a conveyor powered by an engine connected to an incremental encoder. The encoder is plugged into an oscillo which shows a period of 100 microseconds.

What is the formula for speed calculation using an incremental encoder?.

The encoder diameter is 20mm and with 500 pulses.

Thanking in advance for your help.

 

[chuckey]

You have to convert the rotation speed at 20mm diam to linear speed. So if your encoder does one turn (500 pulses) its perifery will have moved the belt pi X 20mm ~ 62.8mm. In one second you have counted 10,000 pulses, so 10,000/500 revolutions or 20, so the belt has moved 20X 62.8 = 125.6mm.
Frank

 

[sagar0205]

hi
I'm using an encoder which can give 80 to 2048 pulses per revolution,
and has A,B & Z signals
how to find the velocity of it.

 

[andre_luis]

Look here : https://www.edaboard.com/threads/268802/#post1152120

+++

 

[HTA]

Hi,

here is an implementation of a quadrature encoder interface, the iC-MD, which measures the distance between two Z-pulses: https://www.ichaus.biz/wp2_simple_measurement .

Enjoy your design work!