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<p>Mechanical rotary encoders, also called shaft encoders, are electro-mechanical devices that convert the angular motions (movement around fixed points) of rotary shafts into either analogue or digital signals.</p><p><h2>What are mechanical rotary encoders used for?</h2></p> <p>Applications that require precision shaft rotation (movement around a specific point) make use of mechanical <a href="/web/c/passive-components/rotary-encoders/" target="_self">rotary encoders</a>.</p><p>These include industrial control machinery in factories, rotating radar platforms in satellite structures or computer input devices like trackballs and mice.</p> <p><br> <h2>Types of mechanical rotary encoders</h2></p><p>Absolute encoders:</p> <ul> <li>have tracking functions to determine specific shaft positioning points in industrial equipment like CNC machines, lathes and bore machines.</li> <li>maintain positioning data even when power is cut from the system. When the system is switched on again it begins operating from the point where it stopped previously.</li> </ul> <p><br> Incremental (relative) encoders:</p> <ul> <li>record deviations in shaft position points over certain time frames. With each new time frame after power is cut and switched on again the encoder starts recording from a predetermined reference and measures the distance between the previous point and the current point.</li> </ul>

Mechanical rotary encoders convert angular shaft movements into digital or analogue signals that provide data regarding the position points of the shafts.

Mechanical Rotary Encoders | Shaft Encoders | RS

Mechanical Rotary Encoders

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Bourns Mechanical Rotary Encoders