How many instruments measure color

The measurement geometry describes the alignment between the emitting light source of the measuring device and the surface of the object to be measured as well as the alignment of the sensor to the reflecting surface of the object to be measured. Since the measurement geometry cannot be changed or adjusted afterwards, clarity should be provided before the purchase.

With this geometry, one can, so to say, look inside the color. Partially, measuring instruments with this geometry also have optical shines SCI SCI in order to allow the gloss effect influence the measurement or not. When selecting the accuracy requirements, attention should be paid to the reproducibility of the measurement results as well as the comparability of different measuring instruments of one series. Particularly in case of spectrometers, a spectral resolution of the measuring devices must also be taken into account.

An important point, which must be clarified before the purchase of a color measuring device, refers to the present reference values. Does it go about company's internal measurements, during which the process reliability and quality are to be checked based on specially defined color values? Or should the external requirements of customers or suppliers be taken into account? If external requirements are decisive, a preliminary clarification between the parties, concerning which measuring instruments are to be used, is required.

It is particularly important to achieve an agreement about measurement parameters color space, measurement geometry, measuring aperture, light type, SCI, SCE, Spin, Spex ; otherwise the comparability of the measurement values is not possible. Ideally, both parties use identical measuring devices from one manufacturer.

Many comparative measurements take the color values from standard color systems or color catalogs into account. Known color catalogs are e. Based on these catalogs, visual inspections can be carried out during the production process and quality control. The visual comparison of color cards with printing inks, coloring or colored coatings is, however, faulty, since it is often impossible to check it objectively under the same conditions.

Reproducibility and objectivity can be provided by the color meter, since under defined conditions digitally stored color catalogs can be matched with the customer color patterns. The color spaces are geometrically defined, three-dimensional bodies, in which each color is characterized by 3 coordinates in the X, Y and Z directions. By specifying the spatial coordinates of the corresponding color space, the colors can be exactly determined and the color spacing can be precisely estimated.

Since color spaces, in contrast to color catalogs, can represent all perceptible colors and are used not only in a few industries and, therefore, are universally applicable, the use of color spaces is often more comparable and independent. The use of different light types can change the perception of color impressions. The CIE has therefore established standard illuminants with a defined spectral emission in order to create comparability. The choice of the applied type of light had to be oriented to the later application of the product.

The widely spread standard light type is D D65 simulates the daylight with UV components at a color temperature of about Kelvin. The standard light type C also stands for daylight, but without UV components at a color temperature of about Kelvin. The light type F11 or TL84 is also referred to as department store light at Kelvin and is suitable when the products are kept under artificial light. In addition to these light types, there are many others from narrow- to broadband standard light types.

Depending on the application, a suitable design is also to be selected in the sense of ergonomics. In some devices, the display is placed on the top, while in the other color meters the data is read from the front side and the sensor system is internally installed in a housing. Besides, there are also measuring instruments with external sensors. In addition, some measuring instruments have built-in cameras to assist in the positioning of the measuring device on the object to be measured.

Can smooth, flat and solid surfaces be measured? Does it go about liquids or should the color of fine powders be determined? They are primarily used to reflect the measurements and best suited for the sophisticated color analysis such as the problem of metamerism.

TP is a prominent color measurement instruments used in many mainstream industries which have been designed and manufactured by competent engineers and scientists of Testronix.

The instrument has many advantages of other international standard color measurement instruments. The Testronix TP is a highly used and preferred color measurement instruments in many industries. There are several new features that are added to the product by the highly competent team of engineers and scientists of Testronix. The new Spectrophotometer CMcG is designed to measure color and gloss simultaneously. With a forty five zero geometry and a true sixty degree gloss-sensor, this portable spectrophotometer is ideal for measuring automotive interiors.

This light, handheld instrument is the first of its kind in the world that brings significantly lower measurement and calibration procedure time through its patented numerical UV control. Specifically designed for easy use, the CMd is the first instrument of its kind to scientifically lower the time spent on measurement and calibration procedures through patented numerical UV control.

The CMm3A spectrophotometer is a handheld, multi-angle device that works ideally with metallic colors. The CR chroma meter is a user-friendly, hand held color measuring instrument which can be used on a variety of surfaces in many types of applications. Featuring a 50mm aperture, this unit can measure on its own or, for advanced features and on-site printing, be connected to a data processor.

With its 8mm aperture size, it can measure on its own or connect to a data processor for advanced features and on-site printing. It is ideal for entry level absolute color measurement and inspection.

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