Piccolo Tubes in Flow Sensors

I never heard of a piccolo tube. A piccolo is the highest pitch musical instrument in the flute family. I think you should read about a Pitot tube. A Pitot tube will measure fluid flow.

Google has, it's a pipe with multiple orifices drilled in it. Here's a paper which describes its use in a wind tunnel:

http://deepblue.lib.umich.edu/bitstream/handle/2027.42/76199/AIAA-1979-1820-720.pdf?sequence=1

Sounds similar to an annubar, or maybe even another word for the same thing. The idea is to get an average reading over the entire width of a pipe or duct.

A piccolo tube is used in aircraft wings for anti-icing the wing.

Thanks, cruzmechanical -- I learned something new today! The following patent describes a piccolo tube for de-icing an aircraft's wings:

http://www.google.com/patents/US20100176243

As cruzmechanical says, it's unrelated to pitot tubes or annubars, being located *inside* the wing structure to direct hot air from the turbine engine's compressor onto the inside of the leading-edge wing surfaces to heat them up.

I might have to eat my words here. Referencing Sam Dukelow's excellent text "The Control of Boilers" I saw an illustration where an airflow sensing element for a large combustion boiler was called a "piccolo tube". Now maybe it's Dukelow who is wrong here, but it's at least one published reference to the use of "piccolo tube" for air flow measurement.

A piccolo tube and a pitot tube is the same instrument. Cessna calls them piccolo tubes as in SKU: 6932115-59 PICCOLO TUBE 6932115-59 Most pilots call them pitot tubes. A pitot tube is mounted on the leading edge of the wing in some small planes or it is on a standoff on the fuselage. Pitot tubes have nothing to do with deicing. However some mfg's make anti icing standoffs for pitot tubes so they don't plug up with ice. They are mounted aiming forward and They work by measuring the increase and decrease in air pressure as the plane moves in the airspace. A plugged picolo/pitot tube ( either by ice or by mud dabbers) is extremely dangerous as the pilot may think they are moving at normal cruising speed and find themselves stalling.

actually the thread was started about measurement of flow device's. A pitot tube in this reference measures velocity by measuring the difference between the dynamic and static pressures in fluids. in this reference an annubar and a pitot tube are similair. A piccolo tube is not like either.

the pdf jair0608rev1c.pdf is a good pdf explaining piccolo tube

and if you wikipedia pitot tube it will give you good explanation and examples of the pitot tube