Reflective Photoelectric ColoriMeter

The reflective photoelectric colorimeter measures the surface color or color difference of an object by illuminating the sample surface with a light source. The photoelectric tube receives the diffuse reflected light and converts it into an electrical signal. It is used for surface quality inspections such as paper whiteness detection, plastic color difference control, and ink printing color matching.
Selection
When selecting, consider matching the measurement aperture to the sample size, and ensure the calibration whiteboard has a metrology certificate. Check the repeatability error value, and the ambient light compensation function can reduce interference. The instrument must support industry-standard color-coding systems, and the probe material should be suitable for on-site usage conditions.

Terms

Standards

Instruments

With irreversible discoloration function, Temperature Measurement range 60 ℃ to 70 ℃, Reflective display design for night patrol, can continue to record over temperature status.

$ 80.00

Irreversible discoloration method, Measuring temperature 80 ℃, white turns red, with reflective display function for day and night inspection to find the temperature rise.

$ 80.00

Measuring temperature of 80 ° C, white turns red, with reflective display function, easy to find temperature anomalies during day and night inspections.

$ 80.00

With discoloration display and mild reflective display function, irreversible discoloration at a rated temperature of 60 ° C, size 25 * 40mm, easy to find temperature anomalies during night inspections.

$ 80.00

Irreversible discoloration mode, rated temperature 80 ℃, with reflective display function for night inspection, size 40 * 40mm, each sheet contains 9 patches.

$ 81.00

Irreversible discoloration design, when the temperature reaches 90 ° C, it changes from white to black; with reflective display function, which is convenient for day and night inspection; with its own sticker, easy installation.

$ 80.00

Irreversible discoloration mode, when the temperature reaches 100 ° C, the over-temperature number is displayed immediately; it has a reflective display function, which is convenient for day and night inspections to find temperature abnormalities, with a size of 25 * 40mm.

$ 80.00

70 ℃ rated temperature trigger discoloration display, with reflective function for day and night patrol, irreversible discoloration record the highest temperature, size 25 * 21mm easy to paste on the monitoring part.

$ 81.00

Using irreversible discoloration mode, with 70 ℃ | 80 ℃ | 90 ℃ three-grid temperature Measurement range, with reflective display function for night patrol, can continue to record the overtemperature state.

$ 81.00

With discoloration display and mild reflective display function, irreversible discoloration when the temperature reaches 60 ° C, the size is 25 * 21mm, which is convenient for day and night inspections to detect temperature increases.

$ 81.00

Using irreversible color change, it features 60°C and 80°C temperature monitoring, rectangular temperature grid design, and reflective display for easy detection of temperature anomalies at night.

$ 80.00

The irreversible discoloration method is adopted, the rated temperature is 100 ° C, the white turns blue to show the overtemperature, and the reflective display function is convenient for night inspections to find temperature abnormalities.

$ 81.00

With irreversible discoloration characteristics, Measuring temperature 90 ℃, Dimensions 25 * 40mm, white to black display over temperature, reflective function is convenient for day and night inspection to find temperature anomalies.

$ 80.00

With discoloration display and mild reflective display function, irreversible discoloration at a rated temperature of 80 ° C, size 25 * 21mm, easy to find temperature anomalies during day and night inspections.

$ 81.00

Using irreversible discoloration mode, with three-grid temperature Measurement range 60 ℃ to 80 ℃, reflective display function is convenient for day and night inspection to find temperature abnormalities, and permanently record the temperature state after overheating.

$ 81.00

Articles

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.
Application of Laboratory Coating Machines in the Coating of Optical-Grade PET Anti-Reflection Coatings
This article discusses the application of laboratory coating machines in the preparation of anti-reflective coatings on optical-grade PET substrates. By controlling parameters such as coating speed and gap, the coating machine enables precise adjustment of coating thickness, thereby enhancing light transmittance and reducing reflection.
The necessity of a standard light source box in visual color comparison and color difference assessment of coatings.
In the production of coatings, accurate color evaluation is crucial. Visual color comparison is easily affected by light, as natural light is unstable, and different lighting conditions can make colors appear different.
Gloss meter measures the surface brightness of packaging film.
This article introduces the principle and method of using a gloss meter to measure the surface glossiness of packaging films. The gloss meter quantifies the specular reflection capability of a surface in gloss units by measuring the ratio of reflected light from the sample to that from a standard plate.
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.
The coating machine applies an anti-reflection coating on the surface of optical lenses.
A coating machine is a precision device used for depositing anti-reflection coatings on the surface of optical lenses. Based on the principle of light interference, it forms a thin film of specific thickness on the lens surface through physical or chemical methods to reduce light reflection and enhance light transmission performance.
Ultrasonic thickness gauge for detecting thick coatings and composite coatings.
Ultrasonic thickness gauges measure coating thickness using the principle of ultrasonic pulse reflection, calculating the result based on the propagation time of sound waves in the material and the speed of sound. When detecting thick coatings and composite coatings, challenges such as acoustic attenuation of the material, unknown sound speed, and signal recognition at multi-layer interfaces must be addressed.
Visual color comparison method using colorimetric tubes to determine the color phase of varnish.
Colorimetric tube visual colorimetry is a method used to determine the color hue tendency of varnish samples by directly comparing them with a standard color scale using the human eye. During operation, samples and standard liquid columns should be prepared using colorimetric tubes of consistent specifications under standard lighting conditions, and the hue differences should be observed in parallel.
Reflectometer for measuring the hiding power of colored paint coatings
This article introduces the method of using a reflectometer to measure the hiding power of colored paint coatings. Hiding power refers to the ability of a coating to conceal differences in the underlying color. Traditional methods relying on visual judgment are prone to subjective influences, while instrumental measurement offers greater objectivity and accuracy.
Application of Gloss Meter in Gloss Measurement of Varnish Coatings
A gloss meter is used to measure the gloss of varnish coatings by detecting surface-reflected light to quantitatively assess the appearance of the coating. The measurement is based on the principle of specular reflection of light, commonly employing angles such as 20°, 60°, and 85° to correspond to different gloss ranges, and follows standard formulas for calculation.
Operating Specifications for the Determination of Hexavalent Chromium Content in Wastewater Using Colorimetric Titration Apparatus
This article introduces the standard operating procedure for determining hexavalent chromium content in wastewater using a colorimetric titrator. The method is based on the reaction between hexavalent chromium and diphenylcarbazide under acidic conditions to form a purplish-red complex, with the titration endpoint determined by monitoring changes in absorbance at a wavelength of 540 nanometers.
Glossmeter 75-degree angle measurement for paper gloss
This article introduces the principle and method of measuring paper gloss using a 75-degree specular gloss meter. Gloss is defined as the ratio of the light reflected from the paper surface to that reflected from a standard reference plate, with the 75-degree angle commonly used for measuring medium to high gloss papers.
Ultrasonic Thickness Gauge Measures the Thickness of Flexible Packaging Materials
This article introduces the principles, technical points, and operational procedures for measuring the thickness of flexible packaging materials using an ultrasonic thickness gauge. It is based on the principle of ultrasonic pulse reflection, which calculates thickness by measuring the propagation time of sound waves through the material.
Coating Distinctness of Image (DOI) Meter Evaluates Surface Imaging Clarity
The Coating Distinctness of Image (DOI) meter is an optical instrument used for quantifying the imaging clarity of coating surfaces. It analyzes the reflection of standard patterns on the coating, measuring the ratio of specular reflection to diffuse reflection to obtain an objective DOI value.
Standardized ink color evaluation environment for visual color comparison cabinets
This article introduces the standardized application of visual color comparison boxes in ink color evaluation. It emphasizes that to ensure the accuracy and consistency of color judgments, the evaluation environment must be strictly controlled.