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How to count lumps of cloth on a moving belt ?

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installer2001

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urgent help plz

Hello guys,
Plz tell me that I want to count lumps of CLOTH on the moving belt ..How i can i do---I think this is possible by means of infrared ....but how...plz plz do reply

Secondly tell me that I want to count the length of cloth on moving belt ...How can i ....For eg that cloth is moving on the belt and after 1 meter belt stops for 10 seconds then on & segment display it shows 1 and then again cloth starts moving on the belt and again after 1 meter it stops for 10 seconds and counter increments and 7segment shows the value of 2
plz help me
 

Re: urgent help plz

Hi

Measuring Length is easy. Just connect disc to the belt. measure the number of rotations per meter and display it. A simple atmel 89c2051 (or pic ) is enough for this.

Nandhu
 

Re: urgent help plz

Basic principle is you measure the time and if you know the rate at which the belt is rotating you can measure the distance.
Hope this is useful.
brm
 
Re: urgent help plz

Heres a tip for you: you have to experiment on this though some math might be involve...

The motor for the belt must be of a constant speed. Put tachs (tachometer) on the motor (it simple to design and build), take the average cloth length in 1 sec interval
and program it in a microcontroller (or a logic counter may be) to display the length on yer desired display material (eg. LCD or 7-segment display)
 
Re: urgent help plz

can u plz explain it in more detail
 

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