Encoder

Thread Starter

av.k10373

Joined Nov 21, 2007
2
Dear Sir,


Attached here some details of a 9 bits parellel output encoder.
Can we make a test circut with digital counter display unit in decimal
and binery mode ?

Spec: 9 bits output, 0 to 360* counting, 3000 rpm,

Thanks
Ajith karthikeyan
ajithkarthikeyan@yahoo.co.in
 

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beenthere

Joined Apr 20, 2004
15,808
Well, the output is already in binary, so that part is already done. Converting to degrees might be a challenge, as there are more than 360 counts/revolution. Unless, of course, you know more about the encoder that we do.

You could go through a lot of discreet logic to convert to decimal. Must the count in decimal be in degrees, or just be the equivalent number?

The first solution is going to need a microprocessor. The second can use several gates to monitor bit 1 & 2, and count up a decimal counter string.
 

GS3

Joined Sep 21, 2007
408
One possible approach might be to convert digital to analog and then just measure the analog signal with a meter which will have its own built in ADC. That seems pretty simple.
 

beenthere

Joined Apr 20, 2004
15,808
It's going around Robin Hood's barn, but the D to A converter's output could be scaled to more closely work with the A to D to give an output that reads in degrees.
 

Ron H

Joined Apr 14, 2005
7,012
Well, the output is already in binary, so that part is already done. Converting to degrees might be a challenge, as there are more than 360 counts/revolution. Unless, of course, you know more about the encoder that we do.

You could go through a lot of discreet logic to convert to decimal. Must the count in decimal be in degrees, or just be the equivalent number?

The first solution is going to need a microprocessor. The second can use several gates to monitor bit 1 & 2, and count up a decimal counter string.
How do we know the output is in binary?
 

GS3

Joined Sep 21, 2007
408
If the output is in Gray code rather than straight binary then my suggestion does not work (obviously). I had not thought of that.
 

beenthere

Joined Apr 20, 2004
15,808
Nobody but the OP has any information about the encoder, other than it's got a nine bit output.
 
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