Labthink CHY-C2A Desktop Foil Thickness Tester for Copper and Aluminum Foils

Overview

The Labthink CHY-C2A Desktop Foil Thickness Tester is a precision mechanical contact-type thickness measurement instrument engineered for high-reproducibility evaluation of thin, flexible sheet materials—including copper foils, aluminum foils, polymer films, battery separators, paper, silicon wafers, and laminated substrates. It operates on the principle of controlled-force displacement sensing: a calibrated measuring head applies standardized pressure to the specimen surface, and a high-resolution linear encoder detects vertical displacement with 0.1 µm resolution. This method ensures compliance with internationally recognized thickness metrology standards—including ISO 4593 (plastic film), ISO 534 (paper and board), ASTM D374 (electrical insulating materials), and GB/T 6672 (plastic film and sheet)—making it suitable for quality control laboratories operating under GLP, ISO/IEC 17025, or IATF 16949 frameworks. The instrument’s rigid frame, temperature-stable baseplate, and pneumatic-free mechanical actuation eliminate drift and hysteresis commonly observed in low-cost spring-loaded systems.

Key Features

• Standardized contact geometry: Interchangeable measuring feet provide 50 mm² (film mode) or 200 mm² (paper/board mode) contact area—fully aligned with ISO and ASTM requirements for load distribution.
• Controlled-load actuation: Dual-pressure calibration (17.5 ± 1 kPa for films; 50 ± 1 kPa for paper) ensures consistent deformation behavior across material classes without operator-dependent force application.
• Automated measurement cycle: Motor-driven vertical positioning enables repeatable head descent, dwell time, and retraction—eliminating manual handling variability and enabling unattended batch testing.
• Dual-mode operation: Supports both manual single-point measurements and automated multi-point sequences (up to 10 readings per minute, adjustable).
• Onboard statistical processing: Real-time calculation and display of mean, standard deviation, max/min values, and coefficient of variation—critical for SPC implementation and process capability analysis (Cp/Cpk).
• Traceable calibration: Supplied with NIST-traceable stainless-steel reference gauge blocks (certified to ±0.2 µm uncertainty) for daily system verification and periodic recalibration.
• Modular hardware architecture: Optional accessories—including extended-range measuring heads (0–6 mm / 0–12 mm), external micro-printers, and custom contact foot geometries—are mechanically and firmware-compatible without field modification.

Sample Compatibility & Compliance

The CHY-C2A accommodates specimens up to 300 mm × 300 mm in planar dimension and handles materials with tensile modulus ranging from 100 MPa (soft PE films) to >150 GPa (annealed copper foil). Its pressure-controlled design prevents indentation artifacts in soft polymers while maintaining sufficient contact stability for rigid metal foils. All mechanical and software functions adhere to regulatory expectations for measurement traceability: built-in audit trail logging (date/time stamp, operator ID, calibration status), password-protected parameter configuration, and exportable raw data files compatible with FDA 21 CFR Part 11-compliant Lystem™ Laboratory Data Sharing System. Full documentation—including Design Qualification (DQ), Installation Qualification (IQ), and Operational Qualification (OQ) protocols—is available upon request to support GMP validation in battery, semiconductor packaging, and medical device manufacturing environments.

Software & Data Management

The instrument integrates seamlessly with Labthink’s Lystem™ v3.0 Laboratory Data Management Platform via RS232 serial interface. This platform supports centralized storage of test records with immutable metadata (test method ID, environmental conditions, operator signature), automated report generation (PDF/Excel), trend charting over time, and cross-instrument comparative analysis (e.g., correlating thickness uniformity with peel strength or barrier performance). Raw measurement datasets include timestamped individual readings, environmental temperature/humidity logs (when connected to optional external sensors), and calibration certificate references. Export formats comply with ASTM E1447 and ISO/IEC 17025 Annex A.3 requirements for digital data integrity.

Applications

• Quality assurance of lithium-ion battery current collectors (Cu/Al foils) per UL 1642 and IEC 62619 specifications.
• Thickness profiling of functional coatings on flexible electronics substrates (e.g., PET-based transparent conductive films).
• Process validation of roll-to-roll metallization lines where foil thickness directly impacts electrical resistance and thermal dissipation.
• Regulatory submission support for pharmaceutical blister packaging (PVC/PVDC laminates) under USP and Ph. Eur. 3.2.1.
• Material qualification in aerospace composites (prepreg thickness verification prior to autoclave curing).
• Supplier qualification audits requiring third-party auditable thickness data with full chain-of-custody documentation.

FAQ

What standards does the CHY-C2A explicitly support?
It is designed and verified against ISO 4593, ISO 534, ASTM D374, ASTM D1777, GB/T 6672, and 13 additional international and national standards listed in its technical documentation.
Can the instrument measure non-planar or curved foils?
No—it requires flat, rigidly supported specimens. Curved or highly compliant samples must be conditioned on a vacuum chuck or flat platen prior to measurement.
Is firmware upgrade capability available?
Yes—field-upgradable firmware is delivered via secure USB stick or RS232, with version history and change logs provided in compliance with IEC 62304 Class B software safety requirements.
How often should system calibration be performed?
Daily verification using supplied gauge blocks is recommended; full calibration by an accredited lab is advised every 6 months or after 1,000 measurement cycles, whichever occurs first.
Does the CHY-C2A meet FDA 21 CFR Part 11 requirements?
When deployed with Lystem™ v3.0 and configured with electronic signatures, audit trails, and role-based access control, it satisfies all technical controls required for Part 11 compliance in regulated industries.