An instrument air compressor controls the application of air for operating valves in pneumatic instruments.
Plant air pressure is usually more than instrument air pressure but the most important thing is that instrument air is free from moisture whereas plant air is not. deepak sahani
a musical instrument? a wind instrument? a string instrument? a percussion instrument?
The barometer is the instrument that is used to measure the air pressure.
wind instrument
The latest weather forecasting instrument invented was the barometer. This instrument measures air pressure.
marometre
A church organ
A barometer measures air pressure.
When are air velocity measurement used
Music, like all sound is made up of sound waves traveling through the air. On a string instrument, the sound wave originates with a wave (actually many waves) on a vibrating string. Wind instruments don't have a string, and the sound you hear doesn't sound much like the vibrating reed of a woodwind or the vibrating lips of a brass players. We hear a wave that is established in the air inside the instrument. Of course, air moves through and out of an instrument, but the wave doesn't leave the instrument. A corresponding sound wave, which we hear, is created outside the instrument, but the wave inside the instrument doesn't leave the instrument any more than the wave on a string leaves the string. We need a term to describe the air that is inside the instrument - the air where the wave is established and that term is "column of air."
A good thermometer.
A barometer.