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Model Data and Control System Capabilities
- Pressure Systems
ESP is an off the shelf electronically scanned pressure system. The system consists of numerous 32 port, rack mounted modules from +/-2.5 PSID to +500 PSID, located outside the test chamber. Each module has a check pressure to assure the module is performing correctly and can be calibrated in place using up to 5 highly accurate calibration pressures to maintain the overall system accuracy of +/-0.05% of range. This calibration is performed every 2 hours.
For the 8x6, the following ranges are typically provided:
- 384 ports +/- 15 PSID Barometric Ref
- Data System - Escort
Escort, the steady state data acquisition system, uses a DEC Alpha microprocessor to provide:
- An X window based system
- Real time on-line acquisition of analog signals
- Conversion of raw 10Hz filtered digitized Neff data to engineering units
- Computed performance calculations, which can be displayed in a variety of tabular and graphical formats.
- Limit checking on all selected channels
- 1 second update rate
Escort can stand alone to meet all secure test requirements or it can be connected to a central processing cluster, which facilitates software application development, downloading of software, uploading and storage of facility tables, post processing of data and transmitting of data to a data collector for archival storage.
For the 8x6, Escort provides the following:
- Accuracy for the Neff 400 is +/- 0.05% of range
- Off-site access to data
- 240 channels of which 220 are available for the test article
- 48 temperatures from type J
- 48 temperatures from type T
- 48 temperatures from type E
- Dynamic Data System
The transient data system provides multi-channel high speed digitized acquisition of rapidly changing cyclic on non-periodic impulse type events. The system consists of:
- A front end Precision Filter amplifiers with elliptical (132 dB/oct) or linear phase (46 dB/oct) anti aliasing filters (132 dB per octave)
- Off loading the data by FTPing, in near real time, to either our computer or yours for post processing
- 16 Bit A/D per channel
- Throughput of 40 million samples per second
- Flow Visualization
- Pressure sensitive paint
- Conventional Schlieren systems
- Sheet laser
- Oil flow visualization
- High speed video
- Test Article Controls
- Digital model control system with graphical interface
- Automated test article sequencing system
- Remote Access Control Room
- Real-time remote access to all data
- Video conferencing in real time
- Workstations supplied for remote site
- Secure network connections provided
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NASA's ATP Program
Read about one of the largest, most versatile and comprehensive set of testing facilities in the nation.
+ View the fact sheet (PDF) |
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8'x6' Supersonic Wind Tunnel (8x6)
+ View the fact sheet (PDF) |
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GRC Research Facilities
Find out more about the research facilities at NASA's Glenn Research Center
+ View the site |
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"The right facility at the right time" - NASA Aeronautics Test Program |
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and Accessibility Certification