Product Overview
This is a micro-size single-turn absolute rotary encoder designed for high-precision angle measurement in compact robotic systems.
It adopts advanced TMR (Tunnel Magnetoresistance) sensing technology, offering high sensitivity, low power consumption, and fast response, making it ideal for applications such as exoskeleton robots, robotic joints, and industrial automation.
Key Features
- Single-turn absolute position output (0–360°), no pulse loss
- TMR magnetic sensing technology with high sensitivity and stability
- High resolution options: 10 / 12 / 15 / 16 bit
- RS485 Modbus-RTU communication for industrial use
- Compact size: Ø15.4 mm
- Wide operating temperature: -40°C to 105°C
- Low power consumption: 20–22 mA
- Supports high speed up to 15000 RPM
- Protection level: IP54 (IP67 customizable)
Electrical Specifications
| Parameter | Value |
|---|---|
| Communication | RS485 Modbus-RTU |
| Baud Rate | Up to 1,000,000 bps |
| Data Format | 8 data bits, no parity, 1 stop bit |
| Supply Voltage | 5V |
| Current Consumption | 20–22 mA |
| Differential Output Level | 1.5–3.3V (120Ω load) |
| Power-On Time | 200 ms |
| Operating Temperature | -40°C ~ 105°C |
| Storage Temperature | -40°C ~ 105°C |
| Humidity | 80% |
| Protection Level | IP54 (IP67 customizable) |
Position Specifications
| Parameter | Value |
|---|---|
| Angle Range | 0–360° (Single-turn absolute) |
| Linearity Error | ±0.06° ~ ±0.3° |
| Repeatability | 0.05° |
| Angle Noise | 2 bit |
| Resolution | 10 / 12 / 15 / 16 bit optional |
| Multi-turn Capability | Electronic multi-turn 10–65535 turns (customizable) |
Mechanical Specifications
| Parameter | Value |
|---|---|
| Max Speed | 15000 RPM |
| Speed Resolution | 0.2–10000 RPM |
| Shaft Diameter | 3 mm |
| Shaft Length | 15 mm |
| Radial Load | 100 N |
| Axial Load | 30 N |
| Shock Resistance | 100 g (1000 m/s²) |
| Bearing Life | 3.6 × 10¹⁰ revolutions |
| Housing Diameter | 15.4 mm |
| Shaft Type | Solid shaft / Blind hollow shaft |
TMR Technology Advantages
Compared with Hall, AMR, and GMR technologies:
- Lower power consumption
- Higher sensitivity
- Smaller size
- Faster response
- Lower temperature drift
Applications
- Robotic exoskeletons
- Quadruped robots
- Industrial robotic arms
- Robotics competitions
- Precision motion control systems
Notes
- Dimensions based on 15.4 mm diameter, 3 mm solid shaft version
- Installation should avoid interference with shaft retaining ring (0.4 mm thickness)
