Whiteness and Brightness Meter

Caltech India is the manufacturer and supplier of CES 431 Whiteness and Brightness Meter. A Whiteness and Brightness Tester is a precision optical instrument used to measure the visual appearance of materials by quantifying their whiteness and brightness values. It is widely used in industries where color consistency, surface quality, and visual appeal are critical, such as textile printing and dyeing, paint, chemical building materials, paper board, plastic products, white cement, ceramics, enamel, talc powder, starch, flour, salt, detergent, cosmetics and other substances.

The Whiteness & Brightness measuring instrument consists of Light source, Optical system, Detection system, Data process and Display system. The Whiteness Calculation Formula of the instrument is blue light whiteness R457. The light source of the instrument is long-life LED with 457nm, conforming to the light source requirement in the JJG 512-2002 National Metrological Whiteness Meter Verification Regulation. The measurement of the instrument adopts the principle of photoelectric effect. The diffuse reflectance Radiant Brightness Energy Value of the sample surface is received by the optical cell. Then, the value is amplified by high-precision auto zeroing operation amplifier, inputted to the calibration circuit for energy calibration. Then, the whiteness value of the sample is directly shown on the display.

Features:

• It is composed of light source, optical system, detection system, data processing and display system. The whiteness calculation formula of this instrument is blue light whiteness R457.
• Define the whiteness value of an ideal surface with a diffuse reflectance ratio of 1 across the visible spectral range as 100, and the whiteness of a black surface with a spectral reflectance factor of 0 as 0.
• Diffuse reflection is the reflection of light projected on a rough surface in all directions. When a beam of parallel incident light is emitted to the rough surface, the surface will reflect the light in all directions, so although the incoming rays are parallel to each other, because the normal direction of each point is inconsistent, causing the reflected light to reflect irregularly indifferent directions, this reflection is called “diffuse reflection“ or “diffuse shoot”.
• USB, RS-232C data line output and PC connection, data collection.

Standards: ISO2470, ISO2471, GB8904.2, QB1840, GB2913, GB13025.2, GB1543, GB10339, GB5950, GB12911, GB3978, GB3979, GB7973, GB7974, GB2409 and other standards.

Ordering Information:

In India, we have various customers from Mumbai, Delhi, Bangalore, Chennai, Hyderabad, Ahmedabad, Kolkata, Surat, Pune, Jaipur, Lucknow, Kanpur, Nagpur, Visakhapatnam, Indore, Bhopal, Patna, Vadodara, Ghaziabad, Ludhiana, Coimbatore, Madurai, Nashik, Srinagar, Aurangabad, Dhanbad, Allahabad and Ranchi in India.