Encoders

Image Part Number Description / PDF Quantity Rfq
8.5020.2551.1000

8.5020.2551.1000

Kübler, Inc.

INCREMENTAL ENCODER 1000 PPR

7

15T-14SA-4096NV1ROC-M00

15T-14SA-4096NV1ROC-M00

Encoder Products Company

1.5" DIA INCREMENTAL ENCODER 8MM

10

62AG18-L5-040C

62AG18-L5-040C

Grayhill, Inc.

ROTARY ENCODER OPT 20PPR 4" CBL

0

01070-413

01070-413

Sensata Technologies – BEI Sensors

ENCODER ROTARY 1024PPR 28V SPEC

0

62S22-M5-060C

62S22-M5-060C

Grayhill, Inc.

ROTARY ENCODER OPT 16PPR 6" CBL

203

DSM5H10//5WTN//01024//G3R020/1J/CS****

DSM5H10//5WTN//01024//G3R020/1J/CS****

Sensata Technologies – BEI Sensors

ROTARY ENCODR INCREMENT 1024PPR

0

ACZ11BR1E-20KQD1-12C

ACZ11BR1E-20KQD1-12C

CUI Devices

ROTARY ENCODER INCREMENT 12PPR

0

EN12-HS22AF20

EN12-HS22AF20

TT Electronics / BI Technologies

ROTARY ENCODER MECHANICAL 24PPR

0

H2-0400-0236-05-A-N-H-F-A-X

H2-0400-0236-05-A-N-H-F-A-X

Phoenix America

NON-UNIVERSAL HUB ENCODER KIT

40

25T-34SJ-060NV1ROC-SMY-S3

25T-34SJ-060NV1ROC-SMY-S3

Encoder Products Company

2.5" DIA. 3/4" DIA. BORE 1.75"

10

HS35R10248497

HS35R10248497

Dynapar Corp

1024 PPR, 5/8" BORE DIAMETER

5

H6-0360-0236-05-A-N-A-F-A-X

H6-0360-0236-05-A-N-A-F-A-X

Phoenix America

NON-UNIVERSAL HUB ENCODER KIT

0

H9-2000-0000-05-A-N-U-F-B-X

H9-2000-0000-05-A-N-U-F-B-X

Phoenix America

UNIVERSAL HUB ENCODER KIT

100

725I-20-S-3600-R-OC-1-F-1-SY-N-N

725I-20-S-3600-R-OC-1-F-1-SY-N-N

Encoder Products Company

SIZE 25 ENCODER 3/8" DIA. SHAFT

10

H2-0512-0250-24-A-Y-H-C-A-X

H2-0512-0250-24-A-Y-H-C-A-X

Phoenix America

NON-UNIVERSAL HUB ENCODER KIT

38

PEC12R-2217F-S0024

PEC12R-2217F-S0024

J.W. Miller / Bourns

ROTARY ENCODER MECHANICAL 24PPR

576

25SP-10MA-B1000B5OC-SMX-T6-S4

25SP-10MA-B1000B5OC-SMX-T6-S4

Encoder Products Company

ENCODER ROTARY PROG 2.5" DIA 3/8

10

HEDS-9701#F54

HEDS-9701#F54

Broadcom

ROTARY ENCODER OPTICAL 256PPR

450

01039-3147

01039-3147

Sensata Technologies – BEI Sensors

ROTARY ENCODR INCREMENTAL 256PPR

1

AMT333S-V

AMT333S-V

CUI Devices

KIT, AMT333S, COMMUTATION ENCODE

64

Encoders

1. Overview

Encoders are electro-mechanical devices that convert mechanical motion into digital signals. They play a critical role in measuring position, velocity, and direction in automation systems. By translating physical movement into electrical signals, encoders enable precise control in industrial machinery, robotics, and motion control systems. Their importance continues to grow with advancements in Industry 4.0, smart manufacturing, and autonomous systems.

2. Main Types & Functional Classification

TypeFunctional CharacteristicsApplication Examples
Rotary EncodersMeasure angular position/speed using optical/magnetic sensorsCNC machine spindles, motor feedback systems
Linear EncodersTrack straight-line motion with scale and readheadCoordinate measuring machines, semiconductor manufacturing
Absolute EncodersProvide unique digital position codes at power-onRobot joint positioning, multi-axis systems
Incremental EncodersGenerate pulse trains for relative motion measurementConveyor belts, speed monitoring systems

3. Structure & Components

Typical encoder construction includes: - Housing (metal/plastic for environmental protection) - Shaft/bearing system (precision-machined for rotational stability) - Sensor module (optical code disk with LED/photodetector or magnetic Hall-effect sensors) - Signal processing circuitry (for noise filtering and waveform shaping) - Output interface (push-pull, open-collector, or digital fieldbus)

4. Key Technical Specifications

ParameterImportanceTypical Values
Resolution (PPR)Determines measurement precision100-10,000 PPR
Accuracy (arc-minutes)Indicates position measurement reliability 1 to 20 arc-minutes
Output TypeAffects system compatibilityIncremental: TTL/HTL, Absolute: SSI/CANopen
Environmental RatingDefines operating conditionsIP54-IP69K for dust/water resistance

5. Application Fields

  • Industrial Automation: Machining centers, assembly robots
  • Automotive: Electric power steering systems, transmission control
  • Renewable Energy: Wind turbine blade pitch control
  • Medical: MRI scanner positioning systems
  • Aerospace: Flight control surface monitoring

6. Leading Manufacturers & Products

ManufacturerProduct SeriesKey Features
HeidenhainROC400023-bit absolute rotary encoder with 0.1 m accuracy
OmronE6B2-CWZ6CIncremental encoder with 1000 PPR and IP67 rating
BalluffBML-CRK-P-2Magnetic linear encoder with 1 m resolution
CUI DevicesAMT22Programmable absolute encoder with SPI interface

7. Selection Guidelines

Key considerations include: - Application type (position vs. speed measurement) - Required resolution and mechanical accuracy - Environmental factors (temperature, vibration, contamination) - Output signal compatibility (analog/digital, communication protocol) - Mechanical mounting constraints (shaft size, space limitations) - Cost-performance trade-offs for the specific application

8. Industry Trends

Current trends shaping encoder technology: - Integration with IoT-enabled condition monitoring systems - Development of high-temperature encoders for extreme environments - Miniaturization for medical and aerospace applications - Adoption of wireless signal transmission for mobile equipment - Increasing use of multi-turn absolute encoders without battery backup - Enhanced cybersecurity features for industrial network protocols

Real-world implementation example: In semiconductor manufacturing, Heidenhain's linear encoders with 1 m accuracy enable nanometer-precision wafer positioning during photolithography processes, achieving 99.999% production yield rates.

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