To the uninformed, rotary encoders are an obscure and arcane industrial technology that is used in very advanced scientific applications. While that is true, it is also true that the odometer in your car uses a rotary encoding device to insure accuracy in mileage information. Rotary encoding is the process of converting the rotary motion of any shaft to digital information. Practically every vehicle on the ground, in the air or on the water has at least one. However, industrial manufacturing uses them to track the number of rotations that a milling machine has turned to meet an exact drilling depth or tolerance.
Rotary encoders are a vital and ubiquitous part of industry and used by major manufacturing, as well as small, custom development machine tool companies. Finding companies that manufacturer not only the right kind of device, but can also adapt that device to a specific project can be a particular challenge. The Internet is obviously the best place to look, but with all the irrelevant listings, it could take forever to find what you need. Nevertheless, at Business.com, you will find a wealth if valuable information that can help you find the right encoders for your needs. In fact, if you look at the links on the left, you will find what you need to get started.