Jinhuatester CHY-01 Contact-Type Thickness Gauge for Membranes, Films, and Sheets

Overview

The Jinhuatester CHY-01 Contact-Type Thickness Gauge is an engineered metrology instrument designed for high-reproducibility thickness measurement of planar sheet materials under controlled mechanical loading. It operates on the principle of precision contact displacement sensing—where a calibrated, pneumatically or spring-loaded measuring head applies standardized pressure to the specimen surface, and a linear variable differential transformer (LVDT) or high-resolution capacitive transducer detects vertical displacement with sub-micron resolution. This method ensures compliance with internationally recognized standards for thickness determination in quality control laboratories, R&D facilities, and production environments. Unlike optical or ultrasonic alternatives, the CHY-01 delivers direct, traceable mechanical measurement unaffected by material opacity, surface reflectivity, or dielectric properties—making it especially suitable for battery separators, polymer films, metallized foils, and porous or fibrous substrates where non-contact methods may yield ambiguous results.

Key Features

• Standardized, pressure-regulated contact measurement per ASTM D6988 (plastic film), ISO 4593 (plastic film and sheet), and ISO 534 (paper and board), with dual-pressure modes: 17.5 ± 1 kPa for flexible films and 100 ± 1 kPa for rigid substrates such as paperboard and metal foil.
• Automated measuring head actuation eliminates manual loading variability; programmable descent speed (10 mm/min, adjustable) ensures consistent dwell time and minimizes viscoelastic creep effects in soft polymers.
• High-resolution transduction system with 0.1 µm resolution and ±0.5 µm accuracy across the full 0–5 mm range—validated via NIST-traceable gauge block calibration.
• Large-color LCD interface displays real-time measurement values, statistical summaries (mean, max, min, standard deviation), and graphical trend plots for up to 100 data points.
• Integrated thermal printer outputs measurement records—including timestamp, sample ID, operator code, and statistical summary—with optional GLP-compliant audit trail when paired with external software.
• RS232 serial interface enables bidirectional communication with Windows-based QC software for automated data logging, SPC charting, and export to CSV or Excel formats.
• Optional motorized auto-feeder module supports unattended multi-point thickness mapping (e.g., 5-, 9-, or 13-point grid) across sheet specimens—reducing operator dependency and improving intra-laboratory reproducibility.

Sample Compatibility & Compliance

The CHY-01 accommodates a broad spectrum of planar materials within its 5 mm maximum thickness envelope, including but not limited to: microporous polyolefin battery separators (e.g., PE/PP trilayer membranes), biaxially oriented polypropylene (BOPP) and polyester (PET) films, aluminum and copper foils (6–200 µm), silicon wafers (up to 1 mm thick), corrugated board liners, nonwovens, solid electrical insulators (e.g., polyimide film), and coated paper grades. Its interchangeable anvil assemblies—50 mm² for low-pressure film testing and 200 mm² for high-pressure paperboard evaluation—ensure appropriate stress distribution and prevent localized indentation or deformation. All configurations meet requirements for routine testing under ISO/IEC 17025-accredited laboratories and support documentation for FDA 21 CFR Part 11 compliance when integrated with validated software platforms.

Software & Data Management

The embedded firmware supports real-time statistical analysis (n ≥ 3 to n ≥ 100), automatic outlier detection using Grubbs’ test, and histogram generation. When connected to Jinhuatester’s optional QCData Manager v3.x (Windows 10/11 compatible), users gain access to full audit trail functionality—including user login tracking, electronic signatures, parameter change logs, and immutable data archiving. Raw measurement files are stored in encrypted binary format and exportable as ASCII-delimited text for integration into LIMS or enterprise MES systems. The software package includes preconfigured test templates aligned with ASTM D374, ISO 4593, and GB/T 6672, enabling rapid method setup without programming.

Applications

This instrument serves critical roles across multiple industrial sectors: in lithium-ion battery manufacturing, it verifies separator uniformity—a key determinant of cell safety and cycle life; in flexible packaging, it validates coextruded film layer consistency prior to metallization or lamination; in paper mills, it supports ISO 534-compliant caliper verification for printing and converting grade certification; and in semiconductor substrate supply chains, it provides fast, tactile verification of wafer backgrind thickness before dicing. Its adaptability to both compliant (e.g., foam, nonwoven) and rigid (e.g., tempered glass, stainless steel shim stock) materials makes it a versatile platform for incoming inspection, in-process monitoring, and final product release testing.

FAQ

What standards does the CHY-01 comply with for film thickness measurement?
It conforms to ASTM D6988, ISO 4593, and GB/T 6672 for plastic films, and ISO 534 and GB/T 451.3 for paper and board.
Can the CHY-01 measure curved or irregular surfaces?
No—it is designed exclusively for flat, rigid-to-semi-rigid planar specimens. Curved samples require specialized fixtures or alternative metrology (e.g., confocal chromatic displacement sensors).
Is calibration traceable to national standards?
Yes—each unit ships with a certificate of calibration against NIST-traceable gauge blocks, with recommended annual recalibration per ISO/IEC 17025 guidelines.
Does the instrument support GLP/GMP documentation requirements?
When used with QCData Manager v3.x and configured with user authentication, electronic signatures, and audit trail logging, it meets core elements of FDA 21 CFR Part 11 and EU Annex 11 for regulated environments.
What maintenance is required for long-term accuracy?
Routine cleaning of the measuring head and anvil surfaces with lint-free isopropyl alcohol; periodic verification using certified reference thickness standards; and annual transducer linearity validation by authorized service centers.