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Lead Contents

Rotary Encoders

Rotary Encoders measure the number of rotations, the rotational angle, and the rotational position. Linear Encoders are also available to measure linear movement.

Related Contents

Primary Contents

Interpreting Engineering Data

Bearing LifeCable Extension Characteristics
Measurement Example
Power supply voltage: 5 VDC
Load resistance: 1 kΩ (Output residual voltage is measured at a 35 mA load current.)
Cable: Special Cable
・ This graph shows the relationship between mechanical life and the load applied to the shaft.
・ The size of the load during rotation affects the life of the bearings.
・ This graph shows the effect of the output waveform if the cable is extended.
・ Extending the cable length not only changes the startup time, but also increases the output residual voltage.

Recommended Products


Compact Encoder with External Diameter of 25 mm


General-purpose Encoder with External Diameter of 40 mm


Rugged Rotary Encoder