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Engineering a More Sustainable Future | ADI
Motor Encoder Signal Chains
Figures 6, 7, 8, and 9 illustrate encoder signal chains for magnetic
(anisotropic magnetoresistive (AMR) and Hall technologies), optical, and
resolver encoders. The components are grouped into five main categories:
1. Tracking shaft position and speed using magnetic sensors
(
AMR, Hall
)
2. Machine health monitoring
X MEMS sensors
X Temperature sensors
3. Intelligence
X Microcontroller with/without integrated ADC
X Resolver-to-digital converter (RDC)
4. Cable interface
X High speed RS-485/RS-422 transceiver
X SPI to RS-485 extender transceiver
5. Signal conditioning
X High performance ADCs (12-bit to 24-bit resolution)
Figure 6: An AMR sensor system.
6
Figure 7: Magnetic encoder (AMR) signal chain.
7
Figure 8: Magnetic encoder (Hall) signal chain.
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Adobe Stock / WilliamJu – stock.adobe.com
