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The Application of Colorimeter in the Evaluation of Eggplant Fruit Color

This article uses a portable spectrophotometer to detect color differences in the peel and calyx colors of five different eggplant materials, including photosensitive and photosensitive. The results showed that the Colorimeter detection results could truly reflect the differences in the apparent color characteristics of eggplants, which are more accurate than the naked eye observation results. It can reflect the subtle differences in the color of different materials. The difference in fruit color between green and purple eggplants is mainly distributed in the 650-700nm wavelength range. The research results provide a new approach for detecting eggplant color appearance and data support […]

2023-05-03

Measurement and Control of Color Difference in Vehicle Body

Harmony and uniformity of color are one of the main appearance characteristics of passenger cars. With the progress of society and the improvement of people’s living standards, cars have become one of the travel necessities. Therefore, in addition to gradually improving the performance requirements of cars, the requirements for car appearance and color are also gradually increasing. The color difference is an important factor affecting the appearance of scars, and reducing the color difference of car bodies is increasingly attracting the attention of manufacturers. Therefore, color difference measurement and control have become research focuses. 1. Preface The automotive color difference […]

2023-04-06

Study on the Maturity of Tomato Fruit by Imaging Hyperspectral Imaging System ……

In this study, a non-destructive and rapid high-throughput tomato fruit phenotype acquisition platform was developed based on the FS20 series of Imaging Hyperspectral Cameras to detect morphological and structural traits, component content traits, and comprehensive phenotypic traits of tomato fruits, respectively. A hyperspectral imaging system was used to obtain spectral images of tomato fruits. Then the spectral photos were analyzed to obtain morphological and structural traits (longitudinal diameter, transverse diameter, fruit shape index, and weight), followed by measurements of tomato fruit color traits (L*, a*, b*, c*, b*, and a*/b*), and component content phenotypic traits (hardness, SsC, lycopene, titratable acid, […]

2023-03-09

Analysis of the solution to the defects of the color difference of the car bod……

1. Color difference phenomenon confirmation and analysis A 2020 Chery Ruihu 8 car, due to a cut accident, caused damage to the right rear door paint film, and the body paint film needed to be repaired to restore the paint film to its original color. The body color was rhineblue metallic paint, and the paint film was repaired, and it was found that there was a color difference defect between the right rear door and the right front door, and the car could not be delivered (Figure 1). Figure.1 Right rear door and right front door have color difference Initially, […]

2023-03-02

Influencing factors of ABS resin color detection

The tristimulus brightness (L) and chromaticity (a, b) values of the sample and the standard plate were measured with different types of spectrophotometer respectively. By analyzing the statistical differences of L, a, and b values under different background plates, different sample thicknesses, and different measurement positions of the same sample, the effects of background plates, sample thicknesses, and different measurement positions of the same sample on the measured values of ABS resin color were investigated. Acrylonitrile-butadiene-styrene (ABS) resin is an opaque, amorphous thermoplastic engineering plastic with a complex two-phase structure. it began to be recognized and used by the general […]

2023-02-03

Determination of tea polyphenols in milk tea based on spectrophotometer

In this study, the characteristics of colorimetric change in turbid solution can be determined by spectrophotometer. The content of tea polyphenols in milk tea without protein precipitation is determined by using ferrous tartrate solution as the chromogenic agent at a certain temperature. The influence of dilution ratio of milk tea, the amount of chromogenic agent, the chromogenic time and the chromogenic temperature on the determination result is explored, and the analytical method for determining the content of tea polyphenols in milk tea and other tea drinks by spectrophotometer is established. The results showed that the best test results were obtained […]

2023-01-11

Application of color measurement in wood science

Color is the basic attribute of wood. The color of wood and its products after dyeing or painting is more complex and changeable. Color measurement is very important in wood science research. The development and classification of color measurement methods are summarized, and the principles and characteristics of photoelectric integration, spectrophotometry and digital color measurement are summarized; On this basis, the application status of these three kinds of analyzers in wood science is expounded; Finally, the three types of colorimeters are compared and analyzed from four evaluation indexes of portability, speed, price and accuracy by using radar chart method, and […]

2022-12-03

Color difference control of automobile body and exterior trim

This paper mainly introduces the causes of color difference between car body and exterior trim, color difference measuring instruments and standards, visual matching and judgment of color difference, and the control methods of color difference between car body and exterior trim in the production process. Introduction With the continuous development of China’s automobile industry, consumers’ requirements for the appearance quality of automobiles are getting higher and higher, and the color consistency of automobile body and exterior parts is getting more and more attention and importance from consumers. At the same time, modern car body painting also shows the development direction […]

2022-07-03

The color of clothes is measured by spectrophotometer

Some people like blue, some people like red, everyone has different feelings about color, and there will be differences in the degree of love. In order to meet the various choices of consumers, clothing is usually made into different color styles, if the clothing has a color difference, consumers are certainly very difficult to accept, want to solve the problem of clothing color matching, we need to use the power of professional spectrophotometer! BENCH-TOP SPECTROPHOTOMETER CS-826 Why do we need to do color matching? Summer is coming, fairies, who still do not prepare a few good-looking dresses. But the yellowish […]

2022-02-03

What are the advantages of benchtop spectrophotometer

We live in a colorful world, although the color is a human visual effect of light, subjective factors, but the substance is objective physical characteristics of color. In order to solve the error of the naked eye on the color judgment, we have to use professional color detection instruments to calibrate the color, so what are the advantages of desktop spectrophotometer in color calibration? BENCH-TOP SPECTROPHOTOMETER CS-828 What are the classifications of color testing instruments? There are many kinds of testing equipment in the field of color management, but according to the way of detection to distinguish, there are two […]

2022-02-03

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The Application of Colorimeter in the Evaluation of Eggplant Fruit Color

Measurement and Control of Color Difference in Vehicle Body

Study on the Maturity of Tomato Fruit by Imaging Hyperspectral Imaging System ……

Analysis of the solution to the defects of the color difference of the car bod……

Influencing factors of ABS resin color detection

Determination of tea polyphenols in milk tea based on spectrophotometer

Application of color measurement in wood science

Color difference control of automobile body and exterior trim

The color of clothes is measured by spectrophotometer

What are the advantages of benchtop spectrophotometer