Windtuner engineers built the Ethernet Intelligent Pressure Scanner around a single idea: the data you collect has to be trustworthy from the first sample to the last. In aerospace and turbomachinery testing, pressure data drives decisions with real consequences. A misjudged pressure coefficient can mean a redesigned component, a delayed certification, or a flight envelope that closes tighter than the data suggested it should.
The Drift Problem Nobody Talks About
Long wind tunnel campaigns expose a quiet problem. Sensors that checked out fine at the start of a test run diverge by the end of it. Engineers are then left with data they cannot fully trust and weeks of work they cannot discard. The Windtuner scanner tackles this with ±0.05% FS accuracy across its full operating range, giving research teams a stable baseline throughout an entire campaign.
±0.05% FS: Reading the Numbers Carefully
Windtuner lists accuracy at ±0.05% FS. That is deliberate. ±0.05% FS and ±0.05% RD are not the same specification. Full-scale accuracy bounds the error regardless of what the scanner reads. At 100 kPa the error band is 0.05 Pa. At 10 kPa it is still 0.05 Pa. The error does not grow as the measured pressure falls. Of reading accuracy behaves differently: at 10 kPa the error shrinks to 0.005 Pa, which sounds better but masks a much larger absolute uncertainty at low pressures.
This distinction shapes real engineering decisions. Turbomachinery researchers often sweep across a wide pressure range in a single run. Aerospace certification programs require traceable accuracy across the full range. Clients preparing procurement specifications need to know which number applies to their pressure levels.
Windtuner's Ethernet Intelligent Pressure Scanner
How the Scanner Delivers on the Number
The 24-bit A/D converter, internal zero and full-scale calibration routines, and the maintenance-free pneumatic valve system work together to keep performance within spec. The valve handles multi-point calibration automatically, without manual intervention. Windtuner calibrates every unit against its CNAS-accredited wind tunnel before shipment, and ships each scanner with a traceable certificate that satisfies auditor requirements.
Scaling Across the Test Facility
Modern test facilities distribute scanners close to measurement points rather than running long pneumatic tubing to a central rack. A single Windtuner scanner connects 16 channels over standard TCP/IP, and multiple units synchronize through IEEE1588V2 Precision Time Protocol. Engineers can therefore capture transient pressure events at up to 500 Hz with consistent timestamps across all channels. Remote firmware updates keep distributed scanners current without service visits.
For teams evaluating pressure measurement systems, Windtuner provides ±0.05% FS accuracy documented in a CNAS calibration certificate, CE certified hardware, and a delivery schedule built around research program timelines, everything to make a qualified instrument meeting your strict standards.
