Encoders

Wheel encoders and disks for robot drive systems

An encoder is used to measure rotational speed of motors or wheels.

For light based encoders a series of markings or holes are made around the rotating disk that are used to break a light beam or change reflectivity that is detected using an infrared sensor.

Magnetic based encoders use a disk with alternating magnetic orientation as markings around it that are read by a Hall effect sensors.

 As the wheel rotates these markings or magnetic changes can be counted and computed against time to determine the rotational speed.

Encoders can be supplied fixed to motors or as separate items for adding to anything that rotates.

Magnetic Encoder Disc for 20D mm Metal Gearmotors, OD 9.7 mm, ID 2.0 mm, 20 CPR (Bulk)

Code: SKU-003904

These magnetic discs can be used with our 20D mm metal gearmotors (extended motor shaft versions only) as part of a quadrature encoder system that offers 20 counts per revolution.

$ 0.95

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We can ship 1145 more in 7 days

Magnetic Encoder Disc for Micro Metal Gearmotors, 12 CPR (Bulk)

Code: SKU-003309

These magnetic discs can be used with our micro metal gearmotors with extended motor shafts as part of a quadrature encoder system that offers 12 counts per revolution. Appropriate Hall Effect sensors, such as those in our magnetic encoder pair kits , are required to complete the system.

$ 0.95

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We can ship 1420 more in 7 days

Magnetic Encoder Disc for Mini Plastic Gearmotors, OD 9.7 mm, ID 1.5 mm, 12 CPR (Bulk)

Code: SKU-003903

These magnetic discs can be used with our mini plastic gearmotors (extended motor shaft versions only) as part of a quadrature encoder system that offers 12 counts per revolution.

$ 0.95

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We can ship 2305 more in 7 days

Magnetic Encoder Pair Kit for 20D mm Metal Gearmotors, 20 CPR, 2.7-18V

Code: SKU-003902

Add quadrature encoders to your 20D mm metal gearmotors (extended back shaft version required) with this kit that uses a magnetic disc and Hall effect sensors to provide 20 counts per revolution of the motor shaft.

$ 11.95

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We can ship 349 more in 7 days

Magnetic Encoder Pair Kit for Micro Metal Gearmotors, 12 CPR, 2.7-18V (old version)

Code: SKU-003308

Add quadrature encoders to your LP, MP, or HP micro metal gearmotors (extended back shaft version required) with this kit that uses a magnetic disc and hall effect sensors to provide 12 counts per revolution of the motor shaft.

$ 10.95

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Our supplier is out of stock

Magnetic Encoder Pair Kit for Mini Plastic Gearmotors, 12 CPR, 2.7-18V

Code: SKU-003720

Add quadrature encoders to your mini plastic gearmotors (extended back shaft version required) with this kit that uses a magnetic disc and hall effect sensors to provide 12 counts per revolution of the motor shaft.

$ 10.95

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We can ship 239 more in 7 days

Magnetic Encoder Pair Kit with Side-Entry Connector for Micro Metal Gearmotors, 12 CPR, 2.7-18V

Code: SKU-005909

Add quadrature encoders to your micro metal gearmotors ( extended back shaft version required) with this kit that uses a magnetic disc and hall effect sensors to provide 12 counts per revolution of the motor shaft.

$ 9.95

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We can ship 551 more in 7 days

Magnetic Encoder Pair Kit with Top-Entry Connector for Micro Metal Gearmotors, 12 CPR, 2.7-18V

Code: SKU-005908

Add quadrature encoders to your micro metal gearmotors ( extended back shaft version required) with this kit that uses a magnetic disc and hall effect sensors to provide 12 counts per revolution of the motor shaft.

$ 9.95

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We can ship 1237 more in 7 days

Optical Encoder Pair Kit for Micro Metal Gearmotors, 3.3V

Code: SKU-003301

Add quadrature encoders to your LP, MP, or HP micro metal gearmotors (extended back shaft version required) with this kit consisting of two sensor boards, two 3-tooth encoder wheels, and two 5-tooth encoder wheels.

$ 10.95

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We can ship 71 more in 7 days

Optical Encoder Pair Kit for Micro Metal Gearmotors, 5V

Code: SKU-003300

Add quadrature encoders to your LP, MP, or HP micro metal gearmotors (extended back shaft version required) with this kit consisting of two sensor boards, two 3-tooth encoder wheels, and two 5-tooth encoder wheels.

$ 10.95

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We can ship 92 more in 7 days