JianHu JH-Series Universal Testing Machine with Integrated Haze & Transmittance Measurement Module

Overview

The JianHu JH-Series Universal Testing Machine with Integrated Haze & Transmittance Measurement Module is a dual-function benchtop instrument engineered for simultaneous mechanical property evaluation and optical performance characterization of polymeric films, sheets, and rigid transparent substrates. Unlike conventional standalone haze meters or universal testers, this system integrates ASTM D1003-compliant optical measurement optics—based on CIE-standard 0°/diffuse geometry for haze and collimated 0° transmission for transmittance—within a precision electromechanical testing frame rated to 5 kN (customizable up to 10 kN). The optical module employs a stabilized tungsten-halogen light source with spectral output matched to CIE Illuminant D65, coupled with silicon photodiode detectors calibrated against NIST-traceable standards. Mechanical testing follows ISO 6892-1 and ASTM E8 protocols, supporting tensile, compression, peel, and flexural tests with closed-loop load and displacement control. This convergence enables correlative analysis—for example, quantifying how tensile strain-induced microcracking or plastic deformation affects optical scattering behavior in PET, PC, or acrylic films—making it especially valuable in R&D labs developing next-generation display overlays, automotive glazing interlayers, or medical packaging.

Key Features

• Integrated dual-mode architecture: Simultaneous acquisition of optical (transmittance %, haze %) and mechanical (load, elongation, modulus) parameters under identical environmental conditions
• Modular optical head with interchangeable apertures (12.7 mm, 25.4 mm, 50 mm) compliant with ISO 13468-1 and ASTM D1003 specimen requirements
• High-stability electromechanical drive system featuring AC servo motor, precision ball-screw actuator, and 24-bit load cell with ±0.5% full-scale accuracy
• 7-inch industrial-grade capacitive touchscreen with intuitive icon-driven workflow—no PC required for basic operation
• Real-time overlay of stress–strain curves with synchronized transmittance/haze drift plots during dynamic loading
• Onboard calibration verification using certified reference standards (SRM 192X series equivalents) with auto-log of calibration history
• Robust aluminum alloy chassis with vibration-damping feet; footprint < 450 mm × 400 mm; total mass < 32 kg

Sample Compatibility & Compliance

The JH-Series accommodates flat, rigid, or semi-rigid specimens up to 100 mm × 100 mm and 25 mm thick—including PET, PMMA, polycarbonate, cellulose acetate, coated glass, laminated safety film, and biomedical hydrogel sheets. Specimen clamping uses pneumatic self-centering grips with adjustable pressure (0.1–0.6 MPa) to prevent edge deformation during optical measurement. Optical testing conforms to ISO 14782 (plastics — determination of haze) and ISO 13468-1 (plastics — determination of transmittance of transparent materials); mechanical testing aligns with ISO 527-2 (tensile properties of plastics), ISO 178 (flexural properties), and ASTM D882 (thin plastic sheeting). The system supports GLP/GMP documentation workflows: all measurements embed digital signatures, instrument ID, calibration status, ambient temperature/humidity logs (via optional external sensor input), and operator credentials. Traceability complies with ISO/IEC 17025 requirements for accredited testing laboratories.

Software & Data Management

JianHu TestSuite v3.2 firmware provides embedded control and analysis without external computers. Raw data—including time-stamped load/displacement arrays, spectral irradiance readings, and integrated haze/transmittance integrals—are stored in encrypted SQLite databases with SHA-256 hash integrity verification. Export options include CSV (for MATLAB/Python post-processing), PDF reports with embedded pass/fail flags against user-defined specification limits (e.g., “Transmittance ≥ 89.5%, Haze ≤ 1.2%”), and XML files compatible with LIMS platforms such as LabVantage and Thermo Fisher SampleManager. Audit trail functionality records all user actions (method edits, calibration events, result deletions) with immutable timestamps and IP addresses (when network-enabled). Optional 21 CFR Part 11 compliance package includes electronic signature validation, role-based permissions (Admin/Operator/Reviewer), and archived backup to network-attached storage (NAS) with automatic daily checksum validation.

Applications

• Display Materials R&D: Correlating biaxial stretching ratios in OLED encapsulation films with haze growth and transmittance loss to optimize barrier layer design
• Automotive Glazing: Validating interlayer adhesion strength in laminated windshields while monitoring haze increase under thermal cycling per SAE J2334
• Medical Packaging: Verifying sterilization-induced optical degradation in Tyvek®-laminated pouches per ISO 11607-1 mechanical integrity and clarity thresholds
• Solar Film Certification: Measuring UV-stabilizer migration effects on transmittance stability in PV backsheet films per IEC 61215 thermal cycling protocols
• Academic Polymer Physics: In-situ observation of crazing onset in amorphous thermoplastics via concurrent load-displacement and real-time haze kinetics

FAQ

Does the optical module require annual recalibration by an accredited lab?
Yes—while onboard verification with reference standards is performed before each test session, full metrological recalibration per ISO/IEC 17025 must be conducted annually by a CNAS- or A2LA-accredited provider. JianHu provides calibration certificates with uncertainty budgets traceable to NIM (China National Institute of Metrology).
Can the system measure curved or textured surfaces?
No—the optical measurement geometry assumes planar, optically homogeneous specimens. Curved or embossed samples must be evaluated using flat-section sampling or alternative methods (e.g., integrating sphere spectrophotometry).
Is third-party software integration supported?
Yes—RESTful API endpoints allow bidirectional communication with LabWare LIMS, Siemens Opcenter, or custom MES systems. JSON payloads include raw sensor values, computed metrics, and instrument health status.
What environmental conditions are required for valid haze measurements?
Per ASTM D1003, ambient temperature must be maintained at 23 ± 2 °C and relative humidity at 50 ± 5% RH during optical testing. The JH-Series includes optional environmental chamber coupling ports for integration with temperature/humidity-controlled enclosures.
How is mechanical crosshead speed synchronized with optical acquisition?
A hardware-triggered synchronization signal ensures optical sampling occurs at precisely defined displacement intervals (e.g., every 0.05 mm during tensile ramp), enabling pixel-level correlation between strain state and scattering profile evolution.