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Multi-degree-of-freedom joints of humanoid robots — shoulder, elbow, waist, hip, knee, wrist, and ankle — rely on high-precision Magnetic Angle Encoders for position feedback between the motor side and gearbox output side, forming the motion-control core that lets robots walk, adjust posture, and perform fine operation.
Narrow joint space imposes extremely high demands on encoder thinness and large hollow integration
Frequent reciprocating motion; vibration and temperature drift easily introduce measurement error and affect motion accuracy
Inner-outer dual-encoding dual feedback is needed to compensate control deviations from gearbox deformation and backlash
Absolute position available immediately at power-on, balancing high-speed dynamic response with mass-production cost pressure
Some application scenarios require functional safety redundancy design
OffersTwo complete inner-outer dual-encoding encoder kits — PRBS and Vernier Code, with IC + magnetic code disc;
EAS-J series covers 20/30/34-48/48-68/68-and-above full-spec hollow-shaft and shaft-mounted humanoid joints;
Offers mature reference kits such as EAS-102/EAS-095/EAS-091, with functional safety upgrade support;
Delivered as a complete material set; the customer only needs to complete PCB integration, with mechanical and PCB layout guidelines to speed up product launch.
Core Product Advantages
✅ High-precision dual-channel detection: resolution up to 24-bit, trimmed absolute accuracy <0.015°, inner-outer dual encoding architecture, compensating gearbox error
✅ Ultra-thin compact design: the integrated inner-outer dual encoding is as thin as 2.3mm; the split dual encoding uses a large hollow structure to accommodate internal wiring and can be embedded in the joint PCB
✅ High-speed real-time response: 30 kHz control frequency, <2 μs low latency, supporting 15kRPM speed, suited to high-frequency dynamic motion
✅ Strong environmental adaptability: based on TMR magnetoresistive technology, vibration and shock resistant, temperature tolerant, and resistant to dust, oil, and contamination
✅ Flexible solution options: PRBS / Vernier Code dual technology routes, Single-turn Absolute output, multi-protocol compatibility, and functional safety upgrade
✅ Domestic IDM, full chain self-controlled: in-house wafer and code disc manufacturing, stable supply, supporting scaled cost reduction and custom development
