Introduction

Encoder apertures are typically fabricated from ring-shaped metal sheets. Through precision stainless steel etching, light-transmitting slots, light-blocking code tracks, continuous apertures, and Gray code patterns are created, which work in conjunction with photoelectric sensing components to enable signal recognition. They are generally classified into two main categories: incremental encoders and absolute encoders. Incremental encoders are suitable for conventional rotational speed detection and continuous motion feedback, while absolute encoders can retain position data even when power is disconnected and are commonly used in high-end, precision positioning applications.

Dot Dot

Metal-etched apertures are directly etched with open and closed lines. Etched metal apertures and etched stainless steel apertures are burr-free, shatter-resistant, corrosion-resistant, easily deformable, highly precise, and capable of withstanding extreme hot and cold environments.

Introduction

Fuke Precision offers precision etching services for indexing plates and encoder discs, capable of creating annular slots, center holes, and positioning structures on thin metal sheets. These products are suitable for use in sensors, electronic components, precision instruments, and automation equipment.

Also known as grating encoders, these devices offer advantages such as high resolution, high measurement accuracy, and reliable operation. Grating encoders are typically etched from SUS304 stainless steel—either imported or domestically produced—and are widely used in encoders, toy hardware, computer accessories, speed-measuring motors, and encoders.

Features

Indexing discs and encoder discs are manufactured using precision etching, featuring stable hole positions, uniform slits, minimal burrs, and customizable specifications. Hole patterns, hole spacing, outer dimensions, and thickness can be machined according to drawings.