Optical Rotary Encoders | Angular Sensors | RS
Recently searched

    Optical Rotary Encoders

    An optical rotary encoder is an angular position sensor. It converts an angular displacement directly into a digital form. There are usually three components in an optical rotary encoder: a light source (an LED), a sensor and a moveable disk.

    How an optical rotary encoder works

    Optical rotary encoders have a shaft mechanically coupled to an input driver. This driver rotates a disc fixed onto it which is marked with a succession of opaque and clear segments.

    Light from infrared emitting diodes reaches the infrared receivers through the transparent slits of the rotating disc, creating an analogue signal. The signal is then amplified electronically and converted into digital form. This is then transmitted to the data processor.

    Uses for optical rotary encoders

    Optical rotary encoders make precise digital signals. This makes them a good option where image resolution matters, and explains their use in applications as varied as office equipment (in computer mice and photo copiers) and medical devices.

    203 Products showing for Optical Rotary Encoders

    Broadcom
    75 LPI
    Incremental
    -
    2 Channel Quadrature
    5V dc
    -
    -
    -
    -
    -
    -
    -
    -
    NIDEC COPAL ELECTRONICS GMBH
    250
    Incremental
    -
    Digital Square Wave
    5V dc
    6 mm
    -
    -
    -
    -
    -
    -
    -
    Grayhill
    -
    Quadrature
    -
    4 Bit Binary, BCD Output, Gray Code, Hexadecimal Code, Octal Code, Quadrature Code
    -
    3.18 mm
    -
    -
    15.88mm
    Panel Mount
    Flat
    -
    -
    Bourns
    128
    Incremental
    -
    Digital Square Wave
    5V dc
    6.35 mm
    -
    9.5mm
    22.23mm
    Bracket Mount
    Round
    -
    3000rpm
    Broadcom
    -
    Incremental
    256
    2 Channel Quadrature with Index Pulse
    5V dc
    -
    -
    -
    -
    -
    -
    -
    30000rpm
    Nidec Components
    25
    -
    -
    Digital Square Wave
    5V dc
    6 mm
    -
    M9
    16.5mm
    Through Hole
    Flat
    Wire Lead
    -
    Bourns
    256
    Incremental
    -
    Digital Square Wave
    5V dc
    6.35 mm
    -
    9.5mm
    22.23mm
    Bracket Mount
    Round
    -
    3000rpm
    Baumer
    200
    Incremental
    200
    Digital
    4.75 → 30V dc
    12 mm
    -
    -
    -
    Flange Mount
    Hollow
    Connector
    <= 6000rpm
    Broadcom
    -
    Incremental
    500
    2 Channel Quadrature
    5V dc
    -
    -
    -
    -
    -
    -
    -
    -
    Broadcom
    -
    Incremental
    500
    2 Channel Quadrature
    5V dc
    -
    -
    -
    -
    -
    -
    -
    -
    Bourns
    32
    Incremental
    -
    2 Channel Quadrature
    5V dc
    6 mm
    -
    1.73mm
    20mm
    Through Hole
    Slotted
    Axial PC Pin
    120rpm
    Broadcom
    -
    Incremental
    500
    2 Channel Quadrature with Index Pulse
    5V dc
    -
    -
    -
    -
    -
    -
    -
    30000rpm
    Baumer
    5000
    Incremental
    5000
    Digital
    8 → 30V dc
    12 mm
    -
    -
    -
    Flange Mount
    Hollow
    Connector
    <= 6000rpm
    Bourns
    128
    Incremental
    -
    Digital Square Wave
    5V dc
    6.35 mm
    -
    9.5mm
    22.23mm
    Bracket Mount
    Round
    -
    3000rpm
    NIDEC COPAL ELECTRONICS GMBH
    1024
    Incremental
    -
    Digital Square Wave
    24V dc
    4 mm
    -
    -
    -
    -
    -
    -
    -
    Grayhill
    -
    Quadrature
    -
    2-Bit Quadrature
    5V dc
    6.35 mm
    -
    -
    17.44mm
    Surface Mount
    Flat
    Connector
    100rpm
    NIDEC COPAL ELECTRONICS GMBH
    50
    Incremental
    -
    Digital Square Wave
    5V dc
    8 mm
    -
    -
    -
    -
    -
    -
    -
    NIDEC COPAL ELECTRONICS GMBH
    800
    Incremental
    -
    Digital Square Wave
    24V dc
    4 mm
    -
    -
    -
    -
    -
    -
    -
    Broadcom
    500
    Incremental
    -
    -
    -
    4 mm
    -
    -
    -
    Through Hole
    -
    -
    30000rpm
    Broadcom
    -
    Incremental
    500
    2 Channel Quadrature with Index Pulse
    5V dc
    8 mm
    -
    -
    -
    -
    Hollow
    -
    30000rpm
    Results per page