Mechanical Rotary Encoders
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.
What are mechanical rotary encoders used for?
Applications that require precision shaft rotation (movement around a specific point) make use of mechanical rotary encoders.
These include industrial control machinery in factories, rotating radar platforms in satellite structures or computer input devices like trackballs and mice.
Types of mechanical rotary encoders
Absolute encoders:
- have tracking functions to determine specific shaft positioning points in industrial equipment like CNC machines, lathes and bore machines.
- 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.
Incremental (relative) encoders:
- 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.
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Related links
- Optical Rotary Encoders
- Alps 24 Pulse Mechanical Rotary Encoder Flat Shaft (Not Indexed), Through Hole
- Alps Alpine 15 Pulse Mechanical Rotary Encoder Flat Shaft (Not Indexed), Through Hole
- Alps Alpine 15 ppr Pulse Incremental Mechanical Rotary Encoder with a 6 mm Slot Shaft (Quadrature), Through Hole
- Bourns 20 ppr Pulse Incremental Mechanical Rotary Encoder with a 6 mm Metal Flatted Shaft Shaft (Not Indexed), PCB
- Alps 12 Pulse Mechanical Rotary Encoder Flat Shaft (Not Indexed), Through Hole
- Alps Alpine 20 ppr Pulse Mechanical Rotary Encoder Flat Shaft (Not Indexed), Through Hole
- Alps Alpine 24 ppr Pulse Incremental Mechanical Rotary Encoder with a 6 mm Flat Shaft (Not Indexed), Through Hole
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