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Open Jet Wind Tunnel 풍동시험기
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"Anemometer Calibrations and Aerodynamic Experiments to BS1042"

The Open Jet Wind Tunnel has been developed for the rapid and accurate calibration of anemometers over the range 0.01 to 30 metre/s, and is ideal for organisations such as 'test and calibration establishments' who regularly check anemometers. The equipment also has uses for a variety of small scale aerodynamic experiments where the expense and complexity of an enclosed section wind tunnel would not be justified.

  • The Open Jet Wind Tunnel consists of a single inlet centrifugal fan, driven by 1.5 kW, 3000 rpm (max.), 0-180v D.C. continuously rated, drip-proof, foot-mounted motor controlled by a solid-state, variable speed controller operating on 220/240 volts, single phase, 50/60 Hz supply.
  • The fan feeds air into a 200 mm diameter orifice meter, (to BS1042), fitted with a quick action clamp for changing orifice plates. Four orifice plates are supplied with the equipment, covering the velocity range 0.2 to 30 metres/s.
  • Following the orifice meter is a smoothing chamber containing perforated screens to provide an even flow into a final contraction section. This is terminated with a sharp-edged exit nozzle through which the air is delivered at test velocity. The velocity profile across any traverse is sensibly flat with a sharp cut off at the boundary, providing a free air stream 150 mm (6 in) diameter. The outlet velocity can be periodically checked using a pitot static tube or a calibrated test anemometer (optional).
  • The instrument under test and the check instruments are mounted on a Three-Position rotatable turret with positive locations so that each position can be immediately centralised in the air stream.
  • A 4 mm ellipsoidal nose pitot tube (supplied) is fitted at one station, a master anemometer may be used at another station and the remaining station holds the anemometer under test.

ACCESSORIES

Refer to Anemometer and Electronic/Test Manometer sections for complimentary instrumentation

We suggest the AV6 Anemometer/Logger and MEDM 5K Micromanometer.

 

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대표자 : 홍영화 / 운영자 : 윤상미
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