In the realm of high-precision machinery, from CNC Video Measuring Machines to advanced robotics, certain components work silently in the background, making everything possible. Among the most critical of these are optical encoders and linear scales. As a company, DONGGUAN CITY HANDING OPTICAL INSTRUMENT CO., LTD., that not only uses but also manufactures these core components, we want to shine a light on these unsung heroes of precision.

What Are Optical Encoders and How Do They Work?

At its core, an optical encoder is a device that converts motion into an electrical signal that can be read by a control system. In our Video Measuring Systems (VMS), they are the key to knowing the exact position of the measuring head at all times.

The system consists of two main parts:
1.  The Scale (Linear or Rotary): This is a strip or disc made of metal or glass with a pattern of extremely fine, precise markings (lines or graduations). In our optical linear encoders, we primarily use durable metal gratings.
2.  The Readhead: The readhead moves along the scale. It contains a light source (LED), a photodetector array, and a scanning reticle. As the readhead moves, the light is alternately blocked and passed by the markings on the scale, creating a light-and-dark pattern. The photodetectors convert this pattern into electrical pulses.

By counting these pulses (incremental encoders) or by reading a unique pattern for every position (absolute encoders), the system can determine position and movement with incredible accuracy.

Why Our In-House Encoders Make a Difference

Many manufacturers of Vision Measuring Machines purchase their encoders from third-party suppliers. We take a different approach. We design, manufacture, and integrate our own linear encoders. This gives us several distinct advantages:

*   Total System Integration: We can perfectly match the characteristics of the encoder to the specific mechanics and software of our VMM. This holistic design approach maximizes performance and reliability.
*   Superior Durability: Our exposed linear encoders are designed for the real world. They are engineered to be resistant to dust, oil, and vibrations commonly found in a workshop environment, ensuring a long and stable operational life for your Automatic Video Measuring Machine.
*   Quality Control: By controlling the entire manufacturing process of the linear scales and readheads, we can enforce the strictest quality standards. This is fundamental to the accuracy of our entire range of products, from 2d Video Measuring Machines to complex angle encoders and Rotary encoders.

Choosing the Right Encoder for Your Application

The type of encoder used depends on the application's needs. Incremental encoders are excellent for high-speed applications where relative position is key. Absolute encoders are vital for applications where the machine needs to know its exact position immediately upon power-up, without a homing cycle. We leverage both types across our product portfolio to deliver the optimal performance for each machine.

Experience the HANDING OPTICAL Difference

The quality of a vision measuring instrument is only as good as its weakest component. By mastering the science of optical encoders, we ensure that our machines have no weak links.

If you're looking for a China Video Measuring Machine supplier that has a deep, fundamental understanding of precision technology, you've come to the right place. To discuss your measurement needs or to learn more about the technology inside our machines, email us at handing3d@163.com.