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Industrial Terminology Glossary – U

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Ultrasonic Thickness Gauge

An instrument designed to non-invasively measure the thickness of materials while preserving their structural integrity. Read More…

Ultraviolet-A (UVA)

One of the three classifications of ultraviolet light produced by the sun as well as man-made light sources.

Ultraviolet-B (UVB)

One of the three classifications of ultraviolet light produced by the sun as well as man-made light sources.

Unbalanced Load

An AC power system using more than two wires, where the current is not equal in the current-carrying wires due to an uneven loading of the phases.

Union (Connection)

The length/diameter adjusting fitting between two nipples or between sensor/connection head and pipe nipple.

Units (of measure)

A determinate quantity (as of length, time, heat, or value) adopted as a standard of measurement. The SI is made up of 7 base units that define the 22 derived units with special names and symbols.

Universal Length Machine

A precision measuring device for external and internal measurements with a measuring range of up to 120mm.

Universal Serial Bus (USB)

A type of interface that allows communication between a host controller and other devices.

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