collect and buffer position information from sinusoidal encoder

[pjr]

I need hardware that would allow me to collect and buffer, then display, position data from a encoder with a sinusoidal output.

[Ex-NISH]

I guess there are 2 outputs with 90 degree phase difference. If so, you need to sample the 2 signal and calculate the instantaneous phase continuously, with buffered AI. By calculating the phase change per second, you get the speed

[Process_Systems]

Sounds like what you have is a resolver, not an encoder. For hardware to decode a resolver, you can try Helm Instrumets, in Maumee, OH., or Toledo Instruments (not Toledo Scale). Their web sites will show what you need.

Good luck

Dave

[Ben]

SCXI-1540 supports resolvers.

Ben

[Salvador_Santolucito]

Hi,

Our 6602 counter/timer boards are perfectly suited to encoder and position measurements. They come with eight 32 bit counters. They also support buffered counter operations.

http://sine.ni.com/apps/we/nioc.vp?cid=1123〈=US

If you wish to do more than just counting with your board, I would suggest one of our new M-series DAQ boards. They come with 2 counters and support buffered counter operations. They also have the functionality to take quadrature encoder and position measurements.

http://sine.ni.com/apps/we/nioc.vp?cid=14124〈=US

-Sal