Dry and wet state reverse reflection coefficient tester
Dry & Wet State Reverse Reflection Coefficient Tester: Comprehensive Overview
This article provides a detailed introduction to the dry and wet state reverse reflection coefficient tester, a precision instrument designed to measure surface reflectivity under both dry and simulated wet conditions. Key features, technical parameters, operational principles, and compliance with international standards are highlighted to guide users in selecting the optimal solution for material testing and quality control.
Applicable Standards
The tester adheres to global standards including ISO 13686, ASTM E1918, and JIS Z8722, ensuring compatibility with international testing protocols. It supports multi-standard applications for diverse industries such as automotive, aerospace, and construction.
Main Parameters
| Parameter | Specification |
|---|---|
| Measurement Range | 0.01–1.00 (reflection coefficient) |
| Wavelength | 632.8 nm (He-Ne laser) |
| Accuracy | ±0.5% (dry), ±1.0% (wet) |
| Test Area Diameter | 50 mm (adjustable) |
| Wet Simulation | Automated water spray system |
Working Principle
The device emits a collimated laser beam onto a sample surface and measures the reflected light intensity using a high-sensitivity photodiode. For wet-state testing, a precision spray system evenly coats the surface with water film, simulating real-world conditions. Advanced algorithms calculate the reflection coefficient by comparing incident and reflected signals.
Test Principle
- Dry State Testing: Measures baseline reflectivity under ambient conditions.
- Wet State Simulation: Applies controlled water film to assess reflectivity changes caused by moisture.
- Data Comparison: Quantifies differences between dry and wet states to evaluate material performance under varied environmental conditions.
This tester integrates automation and precision, making it ideal for R&D labs and production lines requiring accurate surface characterization. Its dual-mode capability ensures compliance with industry standards while delivering actionable insights into material behavior.