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The Calo tester, also known as a ball crater or coating thickness tester, is a simple and inexpensive piece of equipment used to measure the thickness of coatings.Coatings with thicknesses typically between 0.1 and 50 micrometres, such as physical vapor deposition (PVD) coatings or chemical vapor deposition (CVD) coatings, are used in many industries to improve the surface properties of tools ...
Determining the fineness of a paint's grind is important, because too coarse a grind may reduce the paint's color uniformity, gloss, and opacity. [7] The Hegman gauge is widely used for this purpose because it requires minimal skill and only a few seconds' work.
In the past, a common time measuring instrument was the sundial. Today, the usual measuring instruments for time are clocks and watches. For highly accurate measurement of time an atomic clock is used. Stopwatches are also used to measure time in some sports.
The wet film thickness will fall between the clearance of the shortest tab that is wet and the clearance of the next shortest dry tab. Dial indicator, also known as a dial test indicator, dial gauge, or probe indicator an instrument used to accurately measure small linear distances. Feeler gauge: a simple tool used to measure gap widths.
After the war, in 1948, Förster founded a company, now called the Foerster Group where he made great strides in developing practical ECT instruments and marketing them. [2] Eddy current testing is now a widely used and well understood inspection technique for flaw detection, as well as thickness and conductivity measurements.
Pages in category "Measuring instruments" The following 200 pages are in this category, out of approximately 375 total. This list may not reflect recent changes .
A density cup is an instrument that is used to ensure quality control in a paint or lacquer. [1] It does this by measuring the density of the paint or lacquer, and comparing this density with the density of a standard for that paint or lacquer. [ 2 ]
In the paint and coating industries, paint adhesion testing is often used to determine if the paint or coating will adhere properly to the substrates to which they are applied. Several tests measure the resistance of paints and coatings from substrates: cross-cut test, scrape adhesion, pull-off test , and others.