Reflectance analyzer

A reflectometer illuminates the surface of a sample with a light source and measures the ratio of reflected light intensity to incident light intensity. It is used to detect surface color, gloss, and coating uniformity of materials, and is applied in quality monitoring of printed products and color difference inspection of plastics.
Selection
When selecting, consider matching the measurement aperture to the sample size, and regularly maintain the calibration whiteboard. Portable models are suitable for on-site detection, while benchtop models offer higher accuracy. The wavelength range covers the visible light spectrum, with repeatability error below industry standard values.

Terms

Standards

Instruments

With 45/0 reflectance and hiding power test function, repeability 0.2%, repRoducibility 0.5%, automatic calibration and correction of black and white board values, support USB data transmission and statistical mode.

$ 646.00

Made of high-quality non-fluorescent paper, does not contain Fluorescent Whitening Agent, black reflectance < 1, white reflectance 80 +/- 2, Laminating design enhances anti-Curl ability, test area of 0.1 square Meters.

$ 89.00

Black part reflectance less than 1, white part reflectance 80 +/- 2, no Laminating design to enhance paint wettability, avoid checking or cissing, suitable for specific spreading rate brushing tests.

$ 88.00

Using non-fluorescent paper substrate, white reflectance 80 +/- 2, black reflectance < 1, Laminating design enhances Curl resistance, 0.1 square Meter standard area is suitable for spreading rate testing.

$ 91.00

Made of non-fluorescent paper, does not contain Fluorescent Whitening Agent, the black part reflectance is less than 1, the white part reflectance is 80 +/- 2, the surface is smooth and anti-Curl, and the test area is 0.1 square Meters.

$ 91.00

Measurement accuracy of +/- 1, resolution 0.1, support USB and Bluetooth data output, using Photocell, photovoltaic cell technology for reflectance detection, suitable for a variety of material surface analysis.

$ 517.00

White part reflectance 80 +/- 2, black part reflectance less than 1, surface smoothing anti-Curl, suitable for 0.1 square Meter spreading rate test, wettability is good for checking.

$ 89.00

Adopt 45/0 lighting mode, the measurement diaMeter is Φ 20mm, Repeatability Delta R0.1 or less, intelligently store the calibrated value, no need to calibrate frequently, compact and portable can directly measure reflectance value.

$ 490.00

Using 450nm Illuminant and 7 * 14mm elliptical measurement aperture, can accurately measure transparency and surface reflectance, support USB and Bluetooth data output, suitable for a variety of material detection.

$ 517.00

Measurement time is only 1.5 seconds, Repeatability is less than R0.1, which can measure a variety of whiteness indicators and reflectance, and is suitable for the analysis of fluorescent whitening samples.

$ 800.00

Adopt 45/0 geometrical optics structure, repeability accuracy Delta E * ab within 0.04, equipped with large integrating sphere and 3.5 inch Touchscreen, support Light spectrum reflectance Linear dispersion display and color scheme function.

$ 2623.00

Intelligent storage calibrated value, no need to calibrate frequently; Compact and portable, one-handed operation; accuracy up to 1%, Repeatability 0.2%; Long life Illuminant, Good Stability; Built-in rechargeable battery, can be used for a long time.

$ 351.00

Black part reflectance is less than 1, white part reflectance is 80 +/- 2, Laminating design enhances anti-Curl ability, size 145 × 262mm is suitable for spreading rate testing.

$ 89.00

Checkerboard pattern design, black part reflectance below 1%, white part reflectance 80 +/- 2, Laminating structure enhanced anti-Curl ability, size 195 × 286mm, suitable for fast Spreader testing.

$ 91.00

Black part reflectance less than 1, white part reflectance 80 +/- 2, Laminating design enhanced anti-Curl ability, suitable for spreading rate testing, area of 0.1 square Meters.

$ 89.00

Articles

Determination of Thermal Decomposition Temperature and Inorganic Filler Content in Ink by Thermogravimetric Analyzer
This article introduces how to determine the thermal decomposition temperature and inorganic filler content of ink using a thermogravimetric analyzer. During the test, a small amount of ink sample is heated in a nitrogen or air atmosphere, and the mass change curve is recorded.
Spectrophotometer measures ink spectral reflectance and opacity.
This article introduces how to measure the hiding power of ink using a spectrophotometer. The instrument irradiates the ink sample, measures its reflectance within the visible light spectrum, and calculates the hiding power using the Kubelka-Munk model.
Cost-performance analysis of single-channel versus multi-channel switching modules when selecting a laboratory ion meter.
This article compares the cost-effectiveness of single-channel and multi-channel switching modules for laboratory ion meters. Single-channel devices have lower purchase costs, but additional instruments are required for each additional detection parameter. Multi-channel units have higher initial investment, but when testing more than three parameters, the total cost over three years is lower and the sample throughput is greater.
Constant temperature bath selection: circulation method and temperature control range.
This article on thermostatic bath selection primarily analyzes two core factors: circulation mode and temperature control range. The circulation mode is divided into natural convection and forced circulation, where the former is suitable for simple static experiments, while the latter offers higher precision and is better suited for multiple samples or integration with external devices.
Flexographic proofing press is used for evaluating the printability of water-based inks on kraft paper.
This article explores the use of flexographic proofing printability testers to evaluate the printing performance of water-based inks on kraft paper. The instrument simulates actual printing conditions, enabling quantitative analysis of key parameters such as ink transfer rate, print contrast, and dot gain.
Sensitivity Enhancement of Dark Box UV Analyzers in Thin-Layer Chromatography Fluorescence Detection
This article explores how to enhance the sensitivity of dark box ultraviolet analyzers in fluorescence detection for thin-layer chromatography. Sensitivity is influenced by factors such as light source stability, wavelength accuracy, sample background, and ambient light.
Melt flow index instrument controls the flowability and stability of polypropylene injection molding process.
This article explores how to assess and regulate the stability of polypropylene's flowability in injection molding processes by measuring its melt flow rate. It explains the principles behind characterizing flowability and analyzes the impact of factors such as material batch variations and process parameters on stability.
Thermogravimetric Analyzer for Measuring Moisture and Volatiles in Polymer Materials
Thermogravimetric analyzers determine the moisture and volatile content in polymer materials by measuring the mass changes during the heating process.
Differential Scanning Calorimetry measures the phase transition temperature of liquid crystal polymers.
This article introduces the method of determining the phase transition temperature of liquid crystal polymers using a differential scanning calorimeter. The differential scanning calorimeter analyzes the phase transition behavior of materials by comparing the heat difference between the sample and a reference material, recording the heat flow curve during temperature changes.
Differential Scanning Calorimetry for Measuring the Degree of Cure of Polymer Optical Waveguide Materials
This article introduces a method for determining the degree of curing in polymer optical waveguide materials using a differential scanning calorimeter. The degree of curing is a key indicator affecting material performance, and this instrument quantitatively analyzes it by measuring the thermal effects during the curing reaction.
Quantitative Measurement of Carbon Black Content in Rubber by Thermogravimetric Analyzer
Thermogravimetric analyzers measure changes in sample mass through programmed temperature control, enabling the quantitative determination of carbon black content in rubber. During the experiment, the rubber is first heated in an inert atmosphere to decompose it, leaving the carbon black intact. The atmosphere is then switched to an oxidizing environment to oxidize the carbon black. The carbon black content is calculated based on the mass loss.
Thermogravimetric Analyzer Measures Thermal Stability of Plastic Films
This article introduces how to test the thermal stability of plastic films using a thermogravimetric analyzer. It first explains the fundamental principle of the instrument, which assesses the thermal properties of materials by measuring changes in sample mass as a function of temperature.
DSC analyzer measures the glass transition of degradable films.
This article explains how to use a differential scanning calorimeter to measure the glass transition temperature of a degradable film. It first clarifies that the glass transition is the process by which a material changes from a glassy state to a highly elastic state, which appears as a baseline shift on the curve.
Differential Scanning Calorimetry for Measuring the Melting Temperature of Thin Films
Differential scanning calorimetry analyzes thermal transitions in materials by measuring the heat flow difference between the sample and a reference. When determining the melting temperature of thin films, the sample must be uniformly prepared, with a mass between 3 and 10 milligrams. Testing is typically conducted at heating rates ranging from 5 to 20°C/min under a nitrogen protective atmosphere.
Reflectometer Selection: Light Source Geometric Conditions and Contrast Ratio Testing
This article primarily discusses that when selecting a reflectometer, the geometric conditions of the light source are crucial, as they directly affect the accuracy of the measurement results.