Gauge

Gauge may refer to:

Measurements

"Gauge" vs. "Gage": Generally speaking, a "gauge" is measuring device that has a needle or other indicator, a "gage" does not, e.g. pin gages, feeler gages, check fixtures, etc.

• American wire gauge, a measurement of diameter of a wire
• Gauge (bore diameter), the caliber of a gun barrel
• Stubs Iron Wire Gauge, which corresponds to the diameter of a hypodermic needle

See also Category:Wire gauges

• Gauge (sheet metal), thickness of metal in sheet form - varies by composition
• Gauge (engineering), any of a variety of measurement devices.
• Sight glass for measuring liquid level heights in storage tanks and pressure vessels
• Gauge blocks, precision measuring standards (Johansson or slip gauges)
• Boost gauge, a gauge used in conjunction with turbo- super-chargers
• Pressure gauge or vacuum gauge, see pressure measurement
• Gauge (mathematics), a semi norm, a concept related to convex sets
• Stream gauge for measuring height and discharge of a river or stream
• The size of a stretched piercing, see stretching (body piercing)
• Film gauge, a physical property of film stock which defines its size

Physics

For the use of the concept of gauge in physics, see Gauge theory, Gauge fixing.

Railroads

• Rail gauge, the distance between the two rails forming a railroad track
• Standard gauge
• narrow gauge
• Broad gauge
• Loading gauge - maximum width and height of engines and loaded wagons, etc.
• Structure gauge - minimum size of bridges, tunnels, platforms, etc.
• axle load - maximum weight of axles for a given track.
• break of gauge

Other

• Gauge (knitting), the number of stitches in a given length
• Change of gauge, when an aircraft type is scheduled to change at a stopping point of a direct flight
• Gauge (porn star), the stage name of a pornographic film star
• For the Canadian country music group 12 Gauge, see Emerson Drive.

See also

• [[Gage]