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Conductive Fabric AI Visual Inspection Equipment

Conductive fabric AI visual inspection equipment: for metal-plated (nickel / copper) fabrics, inline inspection of uneven plating, scratches, yarn breakage, stains, color difference, pinholes and other defects, with OK/NG output and line linkage.

Materials Overview

Metal reflection suppression + coating continuity appearance

Quick answers

The conductive fabric AI visual inspection equipment images metal-plated (nickel / copper) fabric; algorithms identify defects such as uneven plating, scratches, yarn breakage, stains, color difference and pinholes, output OK/NG results and interlock with the production line.

Conductive fabric is ordinary fabric plated with metals such as nickel and copper, used for electromagnetic shielding. Its difficulty is "metal reflection": the plating is a highly reflective surface, so scratches and uneven plating have low contrast; at the same time the equipment can only see the "appearance of plating continuity" and cannot directly measure electrical properties such as resistivity.

Defects specific to conductive fabric include uneven plating (mottled gloss / color), scratches, yarn breakage, stains, color difference, pinholes (plating perforation) and foreign matter. Uneven plating and pinholes affect shielding continuity and are key items.

Inspection uses AI to build a model of the normal plated appearance and judges unevenness, scratches and pinholes as defects; metal reflection must be suppressed with stripe / coaxial light. Changing the base fabric or the plating type mainly requires adjusting the recipe.

Applicable Type

Nickel-plated Conductive Fabric

The focus is on plating uniformity and pinholes

Copper-plated Conductive Fabric

Focus on color difference and scratches

Conductive Fabric Tape

Adhesive-backed; the focus is on glue application and delamination

Conductive Fabric Roll Stock

Continuous material feed, line-scan full-width inspection

Conductive Fabric Cut Pieces

Already cut, inspected piece by piece with defect locating

Common defect

Defect TypesTypical ManifestationsInspection Focus Points
Uneven PlatingGloss / color mottlingRequires Reflection Suppression
ScratchesLinear surface damageLow-angle light forms a clear image
yarn breakageBase Fabric BreakageCompare With Weave Pattern
stain Oil Stains, OxidationContrast Against Plating
color difference Inconsistency Within BatchStable Color Reference
PinholesPlating PerforationTransmitted or low-angle light
foreign matter Stray Fibers, ParticlesHigh-contrast Features
DelaminationInterlayer SeparationFocus on the Edges

inspection Workflow

Complete chain from loading to judgment

Visual inspection judgement chainThe complete chain from image acquisition to OK/NG judgement and PLC interlocking.image acquisitiontrigger captureTarget Positioningtemplate matchingfeature recognitionAlgorithm JudgementResult JudgementOK / NGindustrial communicationPLC interlockingRelease OKRejection / NG AlarmEvery step's result retains the image and judgement item, for traceability and review
Inspection Judgement Chain — Acquisition → Positioning → Recognition → Judgment → Communication interlocking; the entire chain runs locally on the machine.
  • 01 Conductive fabric loading / roll unwinding or cut-piece feeding
  • 02 Flattening and tension control
  • 03 Triggered imaging (metal reflection suppression)
  • 04 Plating appearance modeling
  • 05 Defect segmentation and classification
  • 06 Defect Grading
  • 07 Dimension / contour judgement (optional)
  • 08 Synthesized OK / NG
  • 09 Marking / rejection and image archiving

AI Inspection Principles

AI Visual Inspection Principles

Inspection of conductive fabric is difficult because of "metal reflection." The algorithm builds a model of the normal plating appearance and classifies uneven plating, scratches and pinholes as defects; metal reflection must be suppressed with stripe / coaxial light, otherwise defects are masked by specular reflection. Note that only appearance can be inspected; electrical properties are not measured.

For illumination, stripe light / coaxial light suppresses specular reflection from metal and highlights the coating and scratches; diffuse light establishes a stable color datum and makes stains and color difference visible. Different plating types have different reflection characteristics and require separate recipes.

For judgement, we recommend setting uneven coating and pinholes as high priority; electrical performance indicators are outside the capability of this equipment. Specific thresholds need to be confirmed by measured testing with OK / NG samples.

Applicable Industry

Applicable equipment

Common Question

Will the metallic reflections of conductive fabric hide defects?
Yes. The plating is specular, so scratches and uneven plating have low contrast beneath it; stripe / coaxial light is needed to suppress reflection and then low-angle light to make them visible. Reflection suppression is subject to measurement on samples.
Can the Equipment Measure the Resistance of Conductive Fabric?
No. Surface vision can only see the appearance of coating continuity (non-uniformity, pinholes); electrical properties such as resistivity require dedicated instruments and are outside this equipment's capability.
Why Are Pinholes Important?
A pinhole is a perforation of the coating that breaks the continuity of electromagnetic shielding and degrades shielding effectiveness. It is usually a key rejection item; the specific acceptance criteria follow the customer's specification.
Is Inspection the Same for Different Plating Types (Nickel / Copper)?
Reflection and color references differ, so the illumination must be adjusted accordingly, but the hardware can be shared — mainly the recipe changes.
What is the inspection accuracy?
To be added. Accuracy is determined by the field of view and camera resolution: pixel equivalent = FOV ÷ pixel count. First define the minimum defect size, then work back to the imaging solution and validate it by measurement with samples.
What samples are needed to develop a solution?
Provide OK and NG samples with different coating types and different base fabrics, the defect acceptance criteria, feeding format and production line cycle time.
Can It Be Integrated Into an Existing Production Line?
Yes. The system exchanges data with the PLC over I/O, TCP, RS485, Modbus, S7, Profinet and others, and outputs OK/NG to trigger rejection; the specific protocol depends on the site.

Submit sample testing

Send OK and NG conductive fabric samples with different plating types and base fabrics, and we will run measured tests on metal reflection suppression and the coating, and recommend an illumination plan.

JPG / PNG supported, multiple files allowed
Each file must not exceed 20 MB
    JPG / PNG supported, multiple files allowed
    Each file must not exceed 20 MB
      JPG / PNG supported, multiple files allowed
      Each file must not exceed 20 MB
        A solution engineer will contact you within 1 business day after submission

        Need to assess imaging conditions, defect criteria and cycle time item by item? Go to the Full Requirement Assessment →

        Send Us Your Material and We Will Show You the Measured Results

        Provide several OK and NG samples of the material, and a solution engineer will run actual imaging and judgement tests on the equipment to give a workable inspection configuration recommendation, rather than reading the datasheet alone.

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