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H22A1 Slotted Opto Isolator Module (Encoder Sensor)

Description of product

H22A1 Slotted Opto Isolator Module (Slotted Optical Switch) [High Quality]

General Description
The H22A1 is a opaque photo interrupts single channel switches consisting of infrared emitting diode and a NPN silicon photo transistor mounted in a Polycarbonate housing.
 
The package is designed to optimize the mechanical resolution, coupling efficiency, ambient light rejection, cost and reliability.
 
Features
High Gain
3mm Gap between LED and Detector
Polycarbonate case protected against ambient light
Operating temperature: -25 to 85°C
 
Applications
  • DC motor position / velocity control
  • Position and velocity servomechanisms
  • Factory automation robots
  • Numerically controlled machinery
  • Computer printers and plotters
  • Facsimilies
  • Optoelectronic Switches
Details
When light emitted by the IR LED is blocked because of alternating slots of the encoder disc logic level of the photo diode changes. This change in the logic level can be sensed by the microcontroller or by discrete hardware. This sensor is used to give position feedback to the robot or as Limit switches. 

*Image shown is a representation only.