Editorial Technical Reference

Encoder System

This page explains how Encoder System is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

A precision measurement device that converts angular or linear position into digital signals for position feedback in CMM arms.

Product Specifications

Technical details and manufacturing context for Encoder System

Definition
The encoder system is a critical component of Coordinate Measuring Machine (CMM) arms that provides real-time, high-resolution position feedback for each joint and axis. It enables the CMM to accurately determine the spatial coordinates of the probe tip by precisely measuring the rotation angles and linear displacements of the arm segments, ensuring measurement accuracy and repeatability. The system typically uses optical, magnetic, or capacitive sensing technologies to detect position changes. As the CMM arm moves, the encoder generates electrical pulses or digital codes proportional to the displacement, which are processed by the controller to calculate exact positions in three-dimensional space. This encoder system is designed for integration into CMM arms and is available with a range of specifications that must be verified for the specific model and application. Key parameters include resolution from 0.001 to 0.005 mm, accuracy within ±0.01 to ±0.05 mm per ISO 10360-2, and repeatability within ±0.005 to ±0.02 mm per ISO 10360-2. The output signal is TTL/HTL, supply voltage ranges from 5 to 24 V DC, and current consumption is ≤100 mA. Operating temperature is -10 to 60 °C, storage temperature is -20 to 70 °C, and protection class is IP54 to IP65 per IEC 60529. Vibration resistance is ≤10 g per IEC 60068-2-6, shock resistance is ≤50 g per IEC 60068-2-27, cable length ranges from 1 to 10 m, and weight is 0.2 to 0.5 kg. Materials include aluminum alloy, stainless steel, optical glass, and electronic components. These values are directory reference ranges; always confirm model-specific specifications and standards with the legal manufacturer or supplier before procurement or use.
Working Principle
The encoder system operates by sensing position changes using optical, magnetic, or capacitive technologies. As the CMM arm moves, the encoder detects angular or linear displacement and converts it into electrical pulses or digital codes. These signals are proportional to the displacement and are transmitted to the controller, which processes them to compute the precise three-dimensional coordinates of the probe tip. The system's resolution and accuracy depend on the sensing technology and signal processing, ensuring reliable position feedback for measurement tasks.
Common Materials
Aluminum alloy, Stainless steel, Optical glass, Electronic components
Technical Parameters
ParameterTypical rangeNotes & selection driver
Resolution0.001–0.005 mmHigher resolution for finer measurement
Accuracy±0.01–±0.05 mmOverall system accuracy including encoderISO 10360-2
Repeatability±0.005–±0.02 mmConsistency of measurementsISO 10360-2
Output SignalTTL/HTLCompatible with common controllers
Supply Voltage5–24 V DCWide range for various systems
Current Consumption≤100 mALow power for battery operation
Operating Temperature-10–60 °CExtended range available
Storage Temperature-20–70 °CProtect from extreme conditions
Protection ClassIP54–IP65Dust and water resistanceIEC 60529
Vibration Resistance≤10 gOperational under vibrationIEC 60068-2-6
Shock Resistance≤50 gSurvives handling dropsIEC 60068-2-27
Cable Length1–10 mCustom lengths available
Weight0.2–0.5 kgLightweight for arm integration

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM
  • Scale/Disk Part
    Patterned surface with precise markings that are read by the sensor
    Material: Glass or metal
  • Sensor Head
    Optical or magnetic sensor that detects scale markings and generates signals
    Material: Electronic components in aluminum housing
  • Signal Processor
    Converts raw sensor signals into digital position data
    Material: Electronic circuit board
  • Mounting Bracket Part
    Secures the encoder to the CMM arm joint
    Material: Aluminum alloy

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: 0 to 1 bar (non-pressurized environment)
other spec: Vibration resistance: ≤5g, IP rating: IP54 (dust and splash resistant)
temperature: -10°C to +70°C
Media Compatibility
✓ Clean air environments ✓ Laboratory-grade measurement rooms ✓ Controlled industrial settings with minimal particulate matter
Unsuitable: High-pressure washdown or submerged conditions
Sizing Data Required
  • Required resolution (e.g., 0.1 μm, 0.001°)
  • Maximum measurement range (linear or angular)
  • Interface type (e.g., SSI, BiSS-C, Ethernet/IP)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Signal Degradation/Intermittent Output
Cause: Contamination ingress (dust, oil, moisture) on optical or magnetic sensing elements, or electrical connection corrosion/looseness
Mechanical Wear/Bearing Failure
Cause: Misalignment causing excessive radial/axial load, inadequate lubrication, or ingress of abrasive particles into bearing assembly
Maintenance Indicators
  • Erratic or fluctuating position/speed readings on the control system display
  • Unusual audible grinding, clicking, or rumbling noises during shaft rotation
Engineering Tips
  • Ensure proper IP-rated sealing and environmental protection (clean, dry, cool) matched to the operating environment to prevent contamination and overheating.
  • Implement precision alignment during installation using laser alignment tools and establish a routine lubrication schedule with manufacturer-specified lubricants.

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
IEC 60068-2-6 - Vibration testing EN 60529 - IP rating for ingress protection

Quoted from the published standard.

Manufacturing Precision
  • Shaft runout: ≤0.01mm
  • Mounting surface flatness: ≤0.02mm
Quality Inspection
  • Electrical signal accuracy verification
  • Environmental sealing integrity test

Manufacturers of Encoder System

1 company lists this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Shenzhen Lichuan Electric Co., Ltd.
Guangdong, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Q3: What encoder system is used?”
View source page ↗ lichuanservomotor.com · checked 2026-08-25

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

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Frequently Asked Questions

What is the typical resolution of this encoder system?

The resolution range is 0.001 to 0.005 mm, as listed in the directory. However, the actual resolution depends on the specific model and configuration. Always confirm with the manufacturer or supplier for your application.

What output signals are available?

The output signal is TTL/HTL, which is compatible with common controllers. Verify the exact signal type and electrical characteristics with the manufacturer to ensure compatibility with your CMM system.

What are the environmental limits for operation?

The operating temperature range is -10 to 60 °C, and storage temperature is -20 to 70 °C. The protection class is IP54 to IP65 per IEC 60529. These are reference ranges; check the specific model's datasheet for exact limits.

How do I verify the accuracy and repeatability?

Accuracy and repeatability are specified as ±0.01 to ±0.05 mm and ±0.005 to ±0.02 mm, respectively, per ISO 10360-2. These are directory ranges. For your specific unit, request the manufacturer's test certificate or calibration data to confirm compliance.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
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