AELAB WM-106 Whiteness Meter for Reflectance Measurement of Powders and Solids

The AELAB WM-106 Whiteness Meter performs direct measurement of blue light whiteness for objects and powders with flat surfaces. The instrument integrates an LED light source, optical system, detection system, data processing unit, and digital display to deliver quantitative whiteness values using the R457 calculation method.

Designed in accordance with JJG 512-2002 National Metrological Whiteness Meter Verification Regulation, the AELAB WM-106 supports standardized and reproducible whiteness testing across industrial and laboratory environments.

⚙️ Design & Construction

The AELAB WM-106 Whiteness Meter features a compact handheld main unit paired with an external optical probe. The optical path adopts a corrected filter system and a 45°/0° illumination geometry, enabling stable diffuse reflectance measurement. High-quality imported electronic components ensure reliable long-term operation.

🔬 Working Principle / Testing Method

The AELAB WM-106 Whiteness Meter operates based on the photoelectric effect. A long-life LED light source emitting at 457 nm illuminates the sample surface. The diffuse reflected radiant brightness energy is received by the optical cell, amplified through an auto-zeroing operational amplifier, calibrated via an energy correction circuit, and converted into a direct digital whiteness value.

💡 Key Advantages

• Direct blue light whiteness measurement using WB = R457 formula
• No preheating required after startup
• Simple calibration procedure with standard white board
• Quantitative reflectance measurement with corrected optical filters
• Memory capacity for 254 groups of measurement data
• Stable repeatability ≤0.1% for reliable quality control

🔗 Connectivity & Integration

• USB data output for PC connection
• RS-232 data output with optional software
• Optional Bluetooth data adapter with software

🧠 Model Insight

🧪 Testing Applications

The AELAB WM-106 Whiteness Meter is widely used for whiteness evaluation in textile printing and dyeing, paint and coating inspection, chemical materials, paperboard, plastics, white cement, ceramics, enamel, talc powder, starch, flour, salt, detergent, cosmetics, and related substances.

Compliance & Quality Assurance

The AELAB WM-106 Whiteness Meter conforms to JJG 512-2002 and supports multiple national and international standards including GB3978, GB3979, GB7973, GB7974, ISO2470, ISO2471, GB8904.2, QB1840, GB2913, GB13025.2, GB1543, GB10339, GB5950, GB12911, and GB2409. Each unit undergoes strict inspection and verification prior to delivery.