Description
Overview
GAOTekportable lab colorimeter uses the integrating sphere to realize the measurement of spectral diffuse reflectance. The optical principle is to use the blue light emitted by the semiconductor light source to directly enter the integrating sphere. The spectrum reflected by the surface is converted into an electrical signal by the silicon photocell after passing through the condenser lens, light barrier, and color filter group; another silicon photocell receives the base signal in the sphere. The two electrical signals are respectively amplified and processed by a single-chip microcomputer to realize the system functions of automatic zero calibration, working whiteboard calibration, and sample testing. Users can easily use this instrument to test the whiteness of various samples.Whiteness colorimeter is widely used in building materials (cement, silicate, talcum powder, kaolin), daily chemicals (cosmetics, detergents, washing powder), ceramics (building ceramics, daily ceramics), flour, salt industry, food, Beverage, textile, flax, fibre, chemical industry, plastics, metallurgy, ultrafine powder, papermaking, printing, measurement, commodity inspection, etc.
Features
- Good measurement performance
- Rich color system and chromaticity value
- High automation and multi-function
- perform reflective measurement on solid, powder, pasty, silk samples
Technical Specification
Observing Condition | Standard D65 luminous source |
Standard Observer | 10° field of view |
Measuring Aperture | φ0.07 in (1.8 mm) |
Specimen Size | Diameter >φ0.59 in (15mm),
Thickness <1.57 in (40mm) |
Indication Accuracy | x, y 0.0001, other 0.01 |
Stability | Zero drift ≤0.1, Indication drift ≤0.2 |
Measurement Accuracy (Whiteness) | W <1.0 |
Measurement Repeatability (Whiteness) | ΔW <0.2 |
Apparent Color Parameters | Absolute value CIE XYZ, Yxy, Lab, LCHx, HunterLab
Chromatic aberration Yxy, Labx, LCHx, HunterLab Whiteness CIE86 whiteness Wg and TW value, R457 whiteness Wr value, Hunter whiteness Wh value, GB5950 whiteness Wj value, Stensby whiteness Ws value, Stephansen whiteness Wp value |
Power Supply | 220V, 50 Hz or 60Hz (Standard)
110V, 60Hz (Optional) |
Working Temperature | 32 °F to 104 °F (0°C to 40°C) |
External Size | 11.81 in x 12.99 in x 11.02 in (300 mm x 330 mm x 280 mm) |
Net Weight | 10.58 lb (4.8 kg) |