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2. Ultrasonic thickness measurement - Wikipedia

   en.wikipedia.org/wiki/Ultrasonic_Thickness...

   An ultrasonic thickness gauge is a measuring instrument for the non-destructive investigation of a material's thickness using ultrasonic waves. The usage of an ultrasonic thickness gauge for non-destructive testing to check material properties such as thickness measurement, is regular in all areas of industrial measurements.

3. Gauge (instrument) - Wikipedia

   en.wikipedia.org/wiki/Gauge_(instrument)

   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.

4. List of measuring instruments - Wikipedia

   en.wikipedia.org/wiki/List_of_measuring_instruments

   Lux meter for measuring illuminance, i.e. incident luminous flux per unit area; Luminance meter for measuring luminance, i.e. luminous flux per unit area and unit solid angle; Light meter, an instrument used to set photographic exposures. It can be either a lux meter (incident-light meter) or a luminance meter (reflected-light meter), and is ...

5. Micrometer (device) - Wikipedia

   en.wikipedia.org/wiki/Micrometer_(device)

   Tube micrometers have a cylindrical anvil positioned perpendicularly to a spindle and is used to measure the thickness of tubes. Micrometer stops are micrometer heads that are mounted on the table of a manual milling machine, bedways of a lathe, or other machine tool, in place of simple stops. They help the operator to position the table or ...

6. Ultrasonic testing - Wikipedia

   en.wikipedia.org/wiki/Ultrasonic_testing

   One of the example that utilize ultrasound for proving material property is the measurement of grain size of specific material. Unlike destructive measurement, ultrasound offers methods to measure grain size in non-destructive way with even higher detection efficiency. Measurement of grain size using ultrasound can be accomplished through ...

7. Gauge block - Wikipedia

   en.wikipedia.org/wiki/Gauge_block

   inspection (A): (tolerance +0.15 μm to −0.05 μm) used as toolroom standards for setting other gauging tools; workshop (B): large tolerance (tolerance +0.25 μm to −0.15 μm) used as shop standards for precision measurement; More recent grade designations include (U.S. Federal Specification GGG-G-15C): 0.5 – generally equivalent to grade AAA