Re: Linear encoder outputs

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "philsumser" <phil.sumser@x>
wrote:

> Greetings All
>
> Does anybody have an answer to the following problem. I have

recently

> purchased some Acu-rite Turnmate scales which I intend to fit to

my

> lathe and milling machine. They are about 10 years old but are

brand

> new and still in their sealed packaging. My idea is to connect the
> outputs of the scales into the serial or parallel port on a PC to

act

> as a DRO(I already have the software for this). The output of the
> scales is analogue differential sinusoidal quadrature phase

current at

> 7-18.5 micro amps into a 1Kohm load, but I need the usual 5v quad

phase

> TTL signal for the computer. Does anybody know of a circuit I can

build

> to effect this conversion?
>
> Best regards
>
> Phil Sumser
> New Zealand

Phil if you need to interpolate between max and min go to the
circuits section under files and find the file "analog output
encoder interface.pdf". I was in a similar situation and Mariss
kindly provided this suggestion.
Fred
I have yet to build the circuits having got halfway through and then
diverted onto another project