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FAQ01154 of Photomicro Sensors FAQ

FAQ No. FAQ01154

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What are modulated and non-modulated of Photomicrosensors Used for Industrial Equipment?


The following table shows the sensing method and characteristics for modulated and non-modulated light.

Sensing methodMethod used to detect light steadily
emitted by the emitter element
Method used to detect light emitted in
pulses by the emitter element
CharacteristicCostLower than modulated modelsHigher than non-modulated models
External light
Susceptibility to ambient lightResistant to ambient light