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The extra lead is connected so as to balance out the resistance of the test lead. A Kelvin connection automatically compensates for the lead resistance by bringing an extra lead to the point of measurement. Such errors can be corrected either by measuring the resistance of the leads before the test and then subtracting that value from the test value or by using a “Kelvin” test setup.
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The tester used for this purpose supplies the required current and displays the ground circuit resistance in ohms or milliohms.īecause the resistance to ground is usually a very low value, the resistance of the connecting leads from the tester itself can cause errors in the measurement. One common method of ground bond testing, applies a 25A source between the protective grounding terminal of the device and all conductive parts that are accessible to the user. This is to determine that bonding is adequate and that the circuit can carry the specified current safely. A high color Saturation creates bold and striking artwork.Ground bond testing requires application of a high current source to a conductive surface of the product and measurement of the voltage drop across the ground connection. Chroma displays increasing colorfulness as the level of illumination increases. The higher the Saturation, the higher the intensity of the color. For a deeper understanding of different color theories, you can read more here -> The ChromaĬhroma colors indicate the Saturation or perceived strength level of a color, the chromatic intensity. A Hue contains no added black, white, or gray. This includes the three primary colors red, green, and blue, and the three secondary colors are orange, green, and purple, and the six tertiary colors are yellow-orange, red-orange red-violet, blue-violet, blue-green yellow-green.īlack, white and gray are not considered a Hue and are not a part of the color wheel, they are defined as neutral colors. The color wheel consists of primary colors, secondary colors, and tertiary colors. saturation and hue considered together as a quality of color the degree of a colors freedom from white, gray, or. The Hue is the pure range of colors and their pigment found on the color wheel. They are an important component of color perception.Ĭolor Wheel with Hues, Tints, Tones and Shades. Learn the basic color theory terminology of the color tone terminology of Hue, Chroma, Tint, Tone, and Shade. It will give you the ability and knowledge to draw highlights and shadows correctly.ĭo you actually know the exact difference between these terms? If not, please continue reading, we will help you clear the confusion once and for all!
#Chroma definition how to#
If you design or paint, knowing how to define and add a Hue, Tint, Tone, or Shade will facilitate to create depth and dimension to your art pieces. To be able to differentiate and describe the color theory aspects is one of the most important design skills. As an aspiring graphic designer or artist, it is of vital importance to understand the definition of these terms. The aspect of a colour s hue that depends on the amount of white or black in it saturation. To add more to the confusion, the terms get used differently in certain art disciplines. chroma ( countable and uncountable, plural chromas ) The colorfulness relative to the brightness of a similarly illuminated area. They are very important elements of color terminology. When we talk about color in art and design, these terms are often used interchangeably.