Editorial Technical Reference

Automated Metrology Module

This page explains how Automated Metrology Module is classified within Computer, Electronic and Optical Product 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 subsystem integrated within an automated lens assembly line for real-time dimensional and optical quality verification.

Representative product image. Confirm appearance and specifications with the manufacturer.

Product Specifications

Technical details and manufacturing context for Automated Metrology Module

Definition
The Automated Metrology Module is a critical component of the Automated Multi-Stage Lens Assembly and Testing System. It performs non-contact, high-precision measurements of lens elements at various stages of assembly. Its primary role is to verify critical parameters such as curvature, thickness, diameter, and surface quality, feeding data back to the system's control unit to ensure each lens meets specifications before proceeding to the next stage, thereby enabling closed-loop quality control and process optimization. The module is designed for integration into production lines, with a compact footprint of 600 × 400 × 500 mm and a weight of up to 50 kg. It operates within a temperature range of 20–25 °C and a humidity range of 45–65% RH, requiring a controlled environment to maintain accuracy. The measurement range covers lens diameters and heights from 0 to 50 mm, with an accuracy of ±0.5 µm (per ISO 10360-2) and repeatability of ±0.2 µm (per ISO 5725-1). Resolution is 0.1 µm, and measurement speed is 10–20 parts per minute, matching typical production cycle times. The module uses optical techniques such as laser triangulation, confocal microscopy, or interferometry, with sensors like CCD/CMOS cameras or photodetectors. It is powered by 24 V DC ±10% (per IEC 61131-2) with power consumption up to 150 W. The ingress protection rating is IP54 (per IEC 60529), suitable for dust and splash protection. Interface protocols include EtherCAT and PROFINET (per IEC 61158) for real-time data exchange with a PLC. Materials used include aluminum alloy for the frame, stainless steel for precision stages, optical glass for reference lenses, and silicon for sensor chips. The module is a component, not a standalone system, and its performance must be verified for specific applications. All listed parameters are reference ranges; actual values depend on the specific model and integration. Users should confirm model-specific specifications and standards compliance with the legal manufacturer or supplier.
Working Principle
The module employs optical measurement techniques such as laser triangulation, confocal microscopy, or interferometry. A lens is positioned on a stage within the module. A light source (e.g., laser, LED) projects onto the lens surface. Sensors (e.g., CCD/CMOS cameras, photodetectors) capture the reflected or refracted light pattern. Proprietary software algorithms analyze this data to calculate precise dimensional and surface characteristics. The results are compared against predefined tolerances, and a pass/fail signal or detailed measurement data is transmitted to the central system controller.
Common Materials
Aluminum Alloy (frame/enclosure), Stainless Steel (precision stages/fixtures), Optical Glass (reference lenses/windows), Silicon (sensor chips)
Technical Parameters
ParameterTypical rangeNotes & selection driver
Measurement Range0–50 mmCovers typical lens diameters and heights.
Measurement Accuracy±0.5 µmFor dimensional features; better than required for lens tolerances.ISO 10360-2
Repeatability±0.2 µmEnsures consistent quality checks.ISO 5725-1
Measurement Speed10–20 parts/minMatches production line cycle time.
Resolution0.1 µmHigh resolution for fine features.
Operating Temperature Range20–25 °CTemperature-controlled environment required for accuracy.ISO 1
Humidity Range45–65 % RHNon-condensing; prevents optical fogging.
Power Supply24 V DC ±10% V DCStandard industrial voltage.IEC 61131-2
Power Consumption≤ 150 WIncludes sensors and controller.
Ingress Protection RatingIP54Dust and splash protection for production environment.IEC 60529
Interface ProtocolEtherCAT, PROFINETReal-time data exchange with PLC.IEC 61158
Weight≤ 50 kgModular design for integration.
Footprint600 × 400 × 500 mmCompact for line 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
  • Optical Sensor Head
    Emits measurement light and captures the returning signal from the lens surface.
    Material: Aluminum housing, optical elements
  • Precision XY Positioning Stage
    Moves the sensor head or lens fixture to target measurement points.
    Material: Stainless steel, ceramic bearings
  • Lens Fixture/Chuck
    Securely holds the lens in a precise, repeatable orientation during measurement.
    Material: Delrin, aluminum with soft jaws
  • Data Acquisition & Processing Unit
    Converts analog sensor signals to digital data and runs measurement algorithms.
    Material: Circuit boards, silicon chips

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Atmospheric (sealed environment)
other spec: Vibration tolerance: <0.5g RMS, Cleanroom class: ISO 5 or better, Measurement accuracy: ±0.5μm dimensional, ±0.1% optical distortion
temperature: +20°C to +25°C
Media Compatibility
✓ Optical-grade glass lenses ✓ Polymer optical elements ✓ Ceramic lens housings
Unsuitable: Abrasive slurry environments (e.g., chemical-mechanical polishing stations)
Sizing Data Required
  • Maximum lens diameter (mm)
  • Required measurement throughput (units/hour)
  • Optical resolution specification (lines/mm)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Optical Component Degradation
Cause: Accumulation of airborne contaminants (dust, oil mist) on lenses and sensors, leading to calibration drift and measurement inaccuracy due to reduced light transmission and signal quality.
Mechanical Positioning Error
Cause: Wear or backlash in linear guides, ball screws, or servo motors from repeated high-precision movements, exacerbated by inadequate lubrication or particulate ingress, causing positional inaccuracy and repeatability failures.
Maintenance Indicators
  • Gradual increase in measurement variability or drift beyond specified tolerances during routine calibration checks
  • Unusual audible noises (grinding, clicking) from motion components during automated positioning cycles
Engineering Tips
  • Implement a preventive maintenance schedule for cleaning optical components with approved, lint-free materials and controlled-environment purging to minimize contamination.
  • Use vibration monitoring and thermal imaging during operation to detect early-stage mechanical wear or misalignment in positioning systems before critical failure occurs.

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
ISO 10360-2:2009 - Acceptance and reverification tests for coordinate measuring machines (CMM) ANSI/ASME B89.1.12 - Methods for Performance Evaluation of Coordinate Measuring Systems

Quoted from the published standard.

Manufacturing Precision
  • Positional accuracy: +/-0.005 mm
  • Repeatability: 0.002 mm
Quality Inspection
  • Laser interferometer calibration test
  • Probe qualification and error mapping test

Manufacturers of Automated Metrology Module

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Frequently Asked Questions

What is the measurement range of the Automated Metrology Module?

The measurement range covers lens diameters and heights from 0 to 50 mm, as listed in the directory. However, this is a reference range; the actual range depends on the specific model and configuration. Verify with the manufacturer for your application.

What standards are referenced for accuracy and repeatability?

The directory lists accuracy per ISO 10360-2 and repeatability per ISO 5725-1. These standards are procurement references; they do not guarantee that a specific unit is certified. Always confirm compliance with the supplier.

What interface protocols does the module support?

The module supports EtherCAT and PROFINET, per IEC 61158, for real-time data exchange with a PLC. Ensure your control system is compatible with these protocols.

What environmental conditions are required for operation?

The module requires a temperature range of 20–25 °C and humidity of 45–65% RH, non-condensing. These conditions are necessary to maintain measurement accuracy. The ingress protection rating is IP54, but the environment must still be controlled.

Data Basis

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

Preliminary Technical Classification
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