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14- by 22-Foot Subsonic Tunnel Data Acquisition

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A semi-span jet model in the 14x22 Subsonic Wind Tunnel.
A semi-span jet model is scheduled to be tested in NASA Langley’s 14-by-22 Foot Subsonic Wind Tunnel this winter to evaluate aircraft noise reduction technologies as part of the Flap and Landing Gear Noise Reduction Flight Experiment.
NASA Langley / Sean Smith

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Characteristics
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Data Acquisition
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Virtual Tour

Data Acquisition and Processing

Inputs: Analog, digital and electronically scanned pressure (ESP) system.

Controller: Open Architecture Data Acquisition Systems (OADAS)

Capacity / Channels: Analog: 128 / Digital: 32  / ESP module: 2,048

Dynamic Data Acquisition: 64 channels at up to 102.4 kilosamples/second based upon the VT1432b digitizer

Maximum Bandwidth: 46kHz, 24 bits for a 108db (typical) dynamic range

Classified Capability: Yes

Instrumentation

Strain Gauge Balances: 6-component internal

Available Corrections: Interactions, Temperature effects, Attitude tares, Axes orientation, Pressure tears, Momentum (flow) tares

Angle-of-Attack (AOA) Accelerometers: Q-Flex accelerometers

14-by-22-Foot Wind Tunnel Fact Sheet

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Last Updated
Jul 20, 2023
Editor
Lillian Gipson
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