Quote:
Originally Posted by NWChen
I'm having trouble reconciling what differentiates popular FRC rotary encoders, especially since their price varies so much. For example, based on DigiKey:
- AS5145B Quadrature Magnetic Encoder; $38; 0.0879deg resolution
- Grayhill 63R Quadrature Optical Encoder; $54-$75; 64PPR encoder more expensive than 256PPR encoder?
- TT 6120 Hall Effect (Absolute?) Encoder; $15; 0.088deg resolution
- CUI AMT203-V Absolute Encoder; $49; 0.2deg resolution
I know max RPM and mechanical life varies between each encoder, but what else accounts for each sensor's price difference/popularity? |
The Grayhill encoders have internal bearings, which increases the cost.