| Image | Part Number | Description / PDF | Quantity | Rfq |
|---|---|---|---|---|
 |
725I-20-S-1024-R-OC-1-F-1-SY-N-N Encoder Products Company |
SIZE 25 ENCODER 3/8" DIA. SHAFT |
10 |
|
 |
Grayhill, Inc. |
ROTARY ENCODER OPTICAL 24PPR |
29 |
|
 |
Sensata Technologies – BEI Sensors |
ENCODER ROTARY ETHER 10MM 12BIT |
2 |
|
 |
Panasonic |
ROTARY ENCODER MECHANICAL 8PPR |
69 |
|
 |
CUI Devices |
ROTARY ENCODER INCREMENT 10PPR |
0 |
|
 |
Encoder Products Company |
1.5" DIA INCREMENTAL ENCODER 3/8 |
10 |
|
 |
Phoenix America |
NON-UNIVERSAL HUB ENCODER KIT |
40 |
|
 |
Panasonic |
ROTARY ENCODER MECHANICAL 9PPR |
419 |
|
 |
Sensata Technologies – BEI Sensors |
ACW4 MOD 15-30V ANALOG RADIAL CA |
0 |
|
 |
LP35-S-Q29-01024-H30S-28/V-T-T5 Sensata Technologies – BEI Sensors |
ROTARY ENCODR INCREMENT 1024PPR |
0 |
|
 |
Red Lion |
ROTARY ENCODER OPTICAL 500PPR |
0 |
|
 |
CUI Devices |
ROTARY ENCODER OPTICAL 32PPR |
0 |
|
 |
Phoenix America |
NON-UNIVERSAL HUB ENCODER KIT |
40 |
|
 |
Broadcom |
ROTARY ENCODER OPTICAL 120PPR |
0 |
|
 |
Encoder Products Company |
1.5" DIA INCREMENTAL ENCODER 1/4 |
10 |
|
 |
Broadcom |
ROTARY ENCODER OPTICAL 2048PPR |
2 |
|
 |
Encoder Products Company |
1.5" DIA INCREMENTAL ENCODER 8MM |
10 |
|
 |
Grayhill, Inc. |
ROTARY ENCODER OPTICAL 32PPR 5" |
0 |
|
 |
SICK |
ROTARY ENCODR INCREMENT 2500PPR |
3 |
|
 |
J.W. Miller / Bourns |
ROTARY ENCODER MECHANICAL 12PPR |
121 |
|
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.
| Type | Functional Characteristics | Application Examples |
|---|---|---|
| Rotary Encoders | Measure angular position/speed using optical/magnetic sensors | CNC machine spindles, motor feedback systems |
| Linear Encoders | Track straight-line motion with scale and readhead | Coordinate measuring machines, semiconductor manufacturing |
| Absolute Encoders | Provide unique digital position codes at power-on | Robot joint positioning, multi-axis systems |
| Incremental Encoders | Generate pulse trains for relative motion measurement | Conveyor belts, speed monitoring systems |
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)
| Parameter | Importance | Typical Values |
|---|---|---|
| Resolution (PPR) | Determines measurement precision | 100-10,000 PPR |
| Accuracy (arc-minutes) | Indicates position measurement reliability | 1 to 20 arc-minutes |
| Output Type | Affects system compatibility | Incremental: TTL/HTL, Absolute: SSI/CANopen |
| Environmental Rating | Defines operating conditions | IP54-IP69K for dust/water resistance |
| Manufacturer | Product Series | Key Features |
|---|---|---|
| Heidenhain | ROC4000 | 23-bit absolute rotary encoder with 0.1 m accuracy |
| Omron | E6B2-CWZ6C | Incremental encoder with 1000 PPR and IP67 rating |
| Balluff | BML-CRK-P-2 | Magnetic linear encoder with 1 m resolution |
| CUI Devices | AMT22 | Programmable absolute encoder with SPI interface |
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
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.