What Is The Working Principle of Encoder?

What Is The Working Principle of Encoder?

An encoder is an electro-mechanical device that converts motion or position into electrical signals, enabling precise control in automation, robotics, and industrial systems. Its operation depends on the type of encoder (rotary or linear) and the sensing technology used.

Core Working Principle:

1. Position Detection

• A rotating disc (in rotary encoders) or a linear strip (in linear encoders) contains optical, magnetic, or mechanical patterns.

• As the shaft or object moves, a sensor detects these patterns and generates corresponding electrical pulses.

  
  

2. Signal Generation

• Incremental Encoders produce pulse trains (A, B, and sometimes Z signals) to track position changes and direction.

• Absolute Encoders generate unique digital codes (binary or Gray code) for each position, ensuring accurate feedback even after power loss.

  
  

3. Output Processing

• The control system (PLC, servo drive, etc.) interprets these signals to determine speed, position, or direction, enabling real-time adjustment

  

  
  

Why Choose SHHXGD Encoders?

At SHHXGD (www.shhxgd.com), we design encoders with high-resolution sensing, rugged construction, and EMI resistance for reliable performance in harsh environments. Our solutions support:
✔ Industrial automation (CNC, robotics)
✔ Precision motion control (servo systems)
✔ Custom encoder configurations

Upgrade your system with precision—explore SHHXGD encoders today!