small angle/rotary encoder ?

The smallest absolute encoder I can find is 32mm X 32mm, 9 bit, gray Scale / natural binary. Too big? Jay

well I could live with that, can you give me the type ? thanks, Stef 9 bit, gray Scale /

Jay

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With that accuracy you can use a potentiometer. Vishay has some. Don't look under potentiometers, but at this location:

There are others, but your space is really tight.

thanks Jay, but it's much to "thick" or "heigh", >8 mm ;-( Stef

Thanks Frank, very nice site, I've bookmarked it, but indeed all potmeters have too much height ;-( Stef

Absolute might be tough. US Digital has some relative encoders that are only about 11.4 mm thick and 21 mm diameter.

Relative? Sorry but it's Absolute or Incremental.

Jay

Thanks, that's indeed almost within my limits. Stef

Are you looking for an absoluut (absolute) or incremental encoder?

For what application?

If all you're looking for is a digital panel encoder than Grayhill, Panasonic, Tasoku, CTS, Clarostat and Bourns all make products that would do what you want.

What do you want?

Jay

the best would an "absolute", but I can live with incremental.

Goniometer, for measuring the angle of human joints, like the finger. The totalsize of this thing should be in the order of a pocket knife.

Most of them are potmeters, which have far too much height.

Well the E4 of US digital looks quiet suitable, a little bit smaller would even be nicer ;-)

Stef

Just thought I'd check to see if you knew about other methods of doing this which are potentially very small - fiber optics and flex sensors.

Mitch Berkson

Does all the encoding have to be inside that package? A good quality pot and a(an?) SMT ADC might work.

Good Luck! Rich

Stef Mientki wrote: