Within the scope of the master thesis, different MEMS sensors were compared and evaluated by a measurement campaign on an aerodynamic blade model in a wind tunnel at ETH Zurich (ETHZ). HBM are suppliers of this system. The NPS Aerolab Low Speed Wind Tunnel located in Halligan Hall of the Navy Postgraduate School has been in operation since 1953. Wind tunnel real-time data acquisition system The hardware configuration is described for the data acquisition system (DAS) which consists of an analog front end that can process up to 260 channels of data, a multichannel analog-to-digital subsystem that can process up to 50,000 samples of data per second, and a digital computer with standard and nonstandard devices, including graphics capability. An effective but affordable solution for acquiring data was needed. Credits: Photo: Adam Glanzman . . AEROLAB now offers an upgraded Data Acquisition and Control (DAC) system for these tunnels. Air is continuously circulated through the . The Challenge: Wind tunnel testing large scale models and components; Measuring aerodynamic forces, moments and pressure on aircraft and engine components; Instrumentation capable of withstanding extreme forces; Trailing cables that can get tangled, damaged or alter test . Both data acquisition and turbine operation are conducted. The hardware design adopts . Pitot tubes are used to measure the wind speed in the wind tunnel and to measure pressure and wind speed on different surfaces of an aircraft or other structures. A multi-channel data acquisition system was designed to meet the needs of wind tunnel balance data acquisition. Figure 4.21 showsthe essential parts that allow for inertialforces to be found using a sting thus generatingdata that may be used to calculate sixdegrees of freedom for the aerodynamic The Kirsten Wind Tunnel is a subsonic, closed circuit, double return wind tunnel. The wind tunnel gives accurate results and is suitable for undergraduate study and research projects. Validate the setup of the wind tunnel, model, and data acquisition system against known values. Abstract: CIRA's "Instrumentation and Data Acquisition" group has developed an application software, working on a distributed environment, to automate the repetitive wind tunnel tests and to control the data acquisition process and visualise the data, from locations remote to the control room. Abstract: Wind tunnel balances, as the most important equipment in wind tunnel force testing, are responsible for the measurement of raw aerodynamic data in aerodynamic experiments. The data from this wind tunnel test were originally reported by Abrego and Bulaga [1]. Toggle navigation +1 800-578-4260. The wind tunnel, donated by Jacobs in 2019, will be used for predictive testing. WIND TUNNEL R&D. DATA ACQUISITION FOR SUBSONIC AND HYPERSONIC CHAMBERS. Models. Complete signal conditioning is . Home . A 125 horsepower motor produces a maximum velocity of 165 mph through the test section. Wind tunnel permits an exploration of atmospheric boundary layer effects on . Air enters the tunnel through an aerodynamically designed effuser (cone) that . Based on OpenVMS hardware and software the ETW data acquisition systems have been developed in a way which ensures the strictest confidentiality of test results and yet maintains the flexibility clients require of an industrial wind tunnel. A team of mechanical engineering students at Western Kentucky University designed a subsonic wind tunnel data acquisition system through LabVIEW to analyze the forces acting on an object in. The Kirsten Wind Tunnel has recently finished the installation of a new data acquisition and signal conditioning system (DAQ). CFD is the study and analysis of liquid flows by the use of numbers solution methods. CFD. A multi-channel data acquisition system was designed to meet the needs of wind tunnel balance data acquisition. Get in touch with our product experts. Its outstanding flow quality and data-acquisition system allows one to obtain high-quality, reliable aerodynamic data on airfoils, aircraft, wind turbines, and so forth. Utilizing an educational-purpose wind tunnel, a data acquisition system through LabVIEW was created to experimentally analyze the aerodynamic forces experienced by objects in uniform external flow by automatically performing trials and interpreting electrical measurement signals. TecQuipment offers a range of additional and optional models and instrumentation to extend the experiments, including a data acquisition system (VDAS). . Boundary layer velocity profiles on the tunnel walls or on the model can be obtained via Pitot tubes or hot wire probes. The format is ready to adopt many known and also not yet known data sources. To verify experimental results from pressure distribution data around an object, a force balance was designed to . In 2009 we were commissioned by Aerodynamics and Aeromechanical Systems, at QinetiQ Farnborough to develop a 96 channel audio data recording and display system for their wind tunnel. Then the data acquisition system was designed, tested and built. Over the years, AEDC has worked hard to ensure the viability and accuracy of its test facilities. Their wind tunnel was used for testing scaled down models of undercarriage components and systems. The tunnel, with an updated digital data acquisition system, was officially named the L. A. Comp Wind Tunnel in 1978. Collect load information for CFD model validation. Each system is supplied with a Dell desktop computer (standard), keyboard, mouse and flat screen monitor. Using BAR-developed test rigs and data acquisition software and hardware, BAR provides the ability to independently or simultaneously acquire static and dynamic test data using a single model and a single test facility. . Wind Tunnel Data Systems Engineer. In this guide, you'll learn about: Wind tunnel data acquisition and processing has evolved over the last seven decades with large gains in data accuracy, precision, quantity, and productivity rates. Authors: Wang Liu. characteristics in the wind tunnel, notably by placing flow-adjustment devices and the advancements in data-acquisition systems [9], [10]. However, the acquisition of FSI is complex, and only a few practical concepts are known. 6. A new state-of-the-art Wright Brothers Wind Tunnel replaced a nearly 80-year-old MIT campus landmark to become the most advanced wind tunnel in U.S. academia. The new system is currently running in conjunction with the old DAQ as a means of testing and validating its performance with plans to switch over entirely in the next year. The components, performance characteristics, and layout of the Test SLATE system within the NTF control room will be discussed. . Airfoils . The wind speed can be calculated using the impact pressure (Qc), created when air hits a pressure sensing element. The data system provides system setup, calibration, auto-balance, data acquisition, checking of limits and "hooks" for the customer's LabVIEW software data displays. Western Kentucky University TopSCHOLAR Mahurin Honors College Capstone Experience/ Thesis Projects Mahurin Honors College 2021 Wind Tunnel Data Acquisition System Development Using Wind Tunnel Testing and Data Acquisition Systems. Exiting the fan, the air is returned to the contraction section and back through the test section. Commissioned to Develop. This mounting process proved to be one of the toughest challenges for our team as the This paper presents a measurement setup to acquire real information . First, a suitable blade profile was selected for the experiments and a model of it was built. Well known limitations of the different existing current formats are overcome, e.g. The system, consisting of several small "on-board" units installed in the model and a data-managing, data-displaying ground station, is capable of sampling up to 256 channels of raw data at a total sample rate of 128,000 samples/sec. of Test and Control Engineering,Harbin,P. Data Systems and Instrumentation. Central Positioning Control and Data Acquisition System. The design of rotor blades is based on information about aerodynamic phenomena. TecQuipment offers a comprehensive range of optional models and instrumentation, including a computer-based data acquisition system. This system was developed as a potential alternative to the current state of wind tunnel data collection, which requires the use of An important one is fluid-structure interaction (FSI) which describes the interaction between a flexible object (rotor blade) and the surrounding fluid (wind). The ERAD4000 is a scalable, miniature data acquisition system designed to fit inside of the aerodynamic model being used in the wind tunnel test DSA3016 - 19 inch rack mounted Digital Sensor Array The DSA3016 pressure system is a rack mounted; modular system designed for multi-point measurements and is ideal for gas and steam turbine . 4.0 The Data Acquisition System The main types of test data in any wind tunnel are lift and drag. A computer-automated model positioning and data acquisition . The 1010 is specifically designed to test supersonic propulsion components such as inlets and nozzles, propulsion system integration, and full-scale jet and rocket engines. Process Ind., 1994, Volume 7, Number 2 f Wind-tunnel data sets for model evaluation : J. Havens, H. Walker and T. Spicer part of this research programme is to provide verifi- Tank : H=D=0 .373 M Grid : Length=3 .485 m cation of the FEM3A model . The pressure measured at each point will be displayed on a graphical user interface. The results of wind tunnel measurements can be utilized to generate the design data for the prototype. The 1010 facility is the largest and fastest wind tunnel at NASA Glenn. hardware and operating systems coupled with specialized data acquisition and application hardware and software modules. data acquisition system. The AWT is an open circuit tunnel with a 33.6 x 48 closed test section. The task was to replace an unsupported . The new DAQ, predicted to be state of the art . Wind tunnels are the most common experimental technique in the field of aerodynamics and are used to study the behavior of a body immersed in air. 3. A team of mechanical engineering students at Western Kentucky University designed a subsonic wind tunnel data acquisition system through LabVIEW to analyze the forces acting on an object in external air flow. It has a flexible and scalable design that utilizes a distributed network architecture approach . Currently students use a tabletop-sized wind tunnel available in the fluids lab to demonstrate surface flow. money compared with full-scale wind tunnels or airborne laboratories, and it offers a wide variety of experiments. Wind tunnel balances, as the most important equipment in wind tunnel force testing, are responsible for the measurement of raw aerodynamic data in aerodynamic experiments. The utility model discloses a test system for hypersonic high temperature wind-tunnel large tracts of land temperature distribution, include: the measurement and control unit is communicated with the remote upper computer through a network cable and is configured to comprise a measurement and control host, and a main control module and a host acquisition module which are arranged in the . wind-tunnel data-acquisition system seems to be pending, the large number of high-accuracy analog-input channels being more and more replaced by different digital interfaces to intelligent sensors. Job. Two sets of 14' 9"-diameter seven-bladed propellers move the air up to 200 MPH through the test section. Models of cars, planes or machinery parts can be tested to see how they change, bend or break based on their shape under the influence of air flow. Qc is calculated by subtracting the ambient pressure, or Static . system configuration. The paper will present a brief background of the previous data acquisition system at the National Transonic Facility (NTF) and the reasoning and goals behind the upgrade to the current Test SLATE data acquisition system. The measurement system in wind tunnel test usually includes dynamic and static measurement, pressure distribution measurement and position measurement for determining the direction of the model according to the wind direction. A plastic honeycomb flow straightener with an L:D ratio of 10:1, . 16-Foot Transonic Tunnel. Scanner & System Sensor Type: Data Acquisition Systems Compatible Parts & Tooling Datasheet Digital Datasheet Add to List We are here to help! Hampton, VA. $54,575 - $120,526 (Glassdoor est.) A major airplane manufacturer was looking for a custom data system for a wind tunnel application. Available for all pre-2006 AEROLAB EWTs with square test sections and a "sting" strain gage force balance, the system features the same National Instruments hardware and LabVIEW Design of Strain Signal Data Acquisition System for Wind Tunnel Balance Based on Zynq. The . This compact wind tunnel provides accurate results and is suitable for undergraduate study and research projects. Tunnel Features: Closed-return tunnel: 75' x 25' (24m x 8m) Closed-throat test section: 3.25' x 5' (0.99m x 1.52m) Speeds: up to 200 feet per . Aerodynamically, older (1980-2006) Educational Wind Tunnels (EWT) function just as well as the newest! Utilizing an educational-purpose wind tunnel, a data acquisition system through LabVIEW was created to experimentally analyze the aerodynamic forces experienced by objects in uniform external flow by automatically performing trials and interpreting electrical measurement signals. . Authors: Wang Liu. Based on National Instruments hardware with LabVIEW software Developed by Viewpoint Systems a National Instruments Alliance Partner. Although the tunnel is well maintained, its data acquisition system has not kept pace with modem technology. Inside the wind tunnel, MoWiTO is being fixed on a hydraulic pump-driven platform, which brings the hub at the height of the tunnel's centerline. TecQuipment offers a comprehensive range of optional models and instrumentation, including a computer-based data acquisition . Since then, extensive currently holds typical undergraduate laboratory research have been conducted to improve the wind works. To verify experimental results from pressure distribution data around an object, a force balance was designed to . 2 Acquisition Systems Jobs. Air enters the tunnel through an aerodynamically designed eff user (cone) that accelerates the air linearly. All the turbine signals for measurement and control are connected to a NI-9066 compactRio controller. First, a suitable blade profile was selected for the experiments and a model of it was built. There are numerous measurement systems that allow obtaining pressure data, speed and resistance forces exerted by the wind on the object of study. OVERVIEW. The experimental setup provides future fluid mechanics laboratory students a hands-on procedure to study aerodynamic forces such as lift and drag. Pressure acquisition subsystems of the CIRA transonic wind tunnel (PT-1) have been integrated, co . The Langley 16-Foot Transonic Tunnel (16-Ft TT) is an atmospheric, closed-circuit tunnel with a Mach number range of 0.2 to 1.25 and a Reynolds number range from 1 x 10 6 to 4 x 10 6 per foot. The The various fields involved include . LabVIEW. The Optimus Data System is a pressure scanning solution designed specifically for wind tunnel test and measurement applications. The QuantumX data acquisition system (DAQ) is the perfect tool for all of your test and measurement needs. Here's how acquisition systems is used on wind tunnel engineer resumes: Helped integrate and trouble shoot the company's first portable Data Acquisition system used on outside tests. 2.4 Measurement and control system FL-13 wind tunnel measurement and control system mainly includes data acquisition system, model attitude control system, dynamic pressure control system, data processing system, test dispatch system and data analysis system. Back in the 90s, we pioneered a new concept of packaging data acquisition equipment within the test model, allowing all data to be digitised at its source whilst minimising balance bridging, noise pickup and errors prevalent with long signal cables. Together, these components form a Data Acquisition System or DAQ System. Aerodynamics analysis / wind tunnel testing; Mobile Data Acquisition. . The present paper describes a data acquisition system, suggested and installed, by the author for use on the supersonic wind tunnel at the university of Hertfordshire/UK. - PC based tunnel speed control and data acquisition system (32 channels . The pressure sensors are installed within a customized adapter plate in order to attach them on the top panel of the test section. With a 90-square-foot flow area and a state-of-the-art data acquisition system, the new test section is a significant improvement from the old tunnel. Tunnel speed is regulated by a custom designed Emerson VIP ES-6600 SCR Drive which could be interfaced with the tunnel's computer data acquisition system. The wind tunnel team write applications in C# using Winforms, and in C++ using MFC. The 1010 is equipped to accommodate large-scale aerodynamic (force and moment) models and full . the number of variables per record. The real time dynamic pressure control precision is 0.3%. Harbin Institute of Technology,Dept. offers a comprehensive suite of wind tunnel testing services and software tools to assist airframe and sub-system . An in-model data acquisition system has been developed that can accept inputs fiom various sensors and transfer the data wirelessly to an access point outside a wind tunnel's test section. Production wind tunnels like the NASA Ames 11-Foot and 9x7-Foot have focused on optimizing their steady-state data systems like those that acquire and process tunnel Then the data acquisition system was designed, tested and built. This drive system is a state of the art wind tunnel control which not only provides for efficient operation but more precise speed regulation than is . Chat with us Email us Call us An effective but affordable solution for acquiring data was needed. Abstract A computer-controlled data acquisition system has been developed for the 40x80-Foot Wind Tunnel at Ames Research Center. Air is drawn through the entrance cone into the test section by a variable speed fan. Genex Systems is looking for a Wind Tunnel Data Systems Engineer to support the Center Maintenance, Operations, and Engineering (CMOE) contract at NASA Langley Research Center in Hampton, VA.Responsibilities: Support cutting edge research projects in large scale test facilities.Coordinate and communicate with internal and external customers as part of a research support team, to determine . The test section of the tunnel is octagonal with a distance of 15.5 ft across the flats. A computer/data acquisition system is used to average and record the results. Loss Prev. Preferred candidate will have experience with wind tunnel testing and data acquisition systems; Familiarity with engineering software tools such as LabVIEW and MATLAB is preferred; Data Acquisition & Software - GDJ Inc. Data Acquisition & Software New State-of-the-Art Data Acquisition Systems allow for easy control of the wind tunnel and both the visualization and acquisition of the data. 1 Introduction Internal wind tunnel balances are multi-component force sensors that are used to measure aerodynamic loads on test objects in Also described are the software configuration of the DAS and complex hardware/software . The installation of a two-dimensional LDV system is planned for use in phase 3 . Computer Data Acquisition System Options The computer data acquisition system utilizes National Instruments Labview software. Design of Strain Signal Data Acquisition System for Wind Tunnel Balance Based on Zynq. of Test and Control Engineering,Harbin,P. It was determined that a software package known as LabVIEW would provide a low cost, data acquisition solution that will enhance the capabilities of the wind tunnel, while at the same time making it more user friendly to faculty and students. 4.2 Model Balance and Data Acquisition System Tofind forces on the model a sting was used insideof the wind tunnel. Science method Wind Tunnel Testing. Lift and drag are measured by using a series of springs, a pivot, and a strain gauge, which are all part of the thrust balance system. Currently, all new AEROLAB Transonic, Supersonic and Complete EWT Systems are supplied with a sophisticated Data Acquisition and Control System. Wind tunnel testing has been a key component of aerodynamic development for decades. The center had a multi-view PSP data acquisition system installed in 16T during 1999. Their current system relied on legacy computer hardware, boxed instrumentation 1 26 J. During post-processing, standard wind tunnel correction techniques were applied to the raw test data (weight and aerodynamic tares). Mobile acquisition of load on mechanical components on bad roads or track; Testing of . This article gives the hardware and software design of the data acquisition system. Many of the large research wind tunnels of NASA are closed return tunnels. Stability Wind Tunnel Description. Key Faculty:: Mark Maughmer. For years, a typical wind tunnel data acquisition system comprised a number of high-accuracy analog input channels, often with programmable gains, filters and sensor excitations. This is a fantastic opportunity for a talented developer to work on a on wide range of software from low level hardware control to front end development and databases and make a real impact on the most exciting applications. Bustec's LXI-based DAQ system provides 96 channels capable of acquiring test data from the wind tunnel at a speed of 216 kS/s per channel with high-precision synchronization and real-time event. Abstract: CIRA's "Instrumentation and Data Acquisition" group has developed an application software, working on a distributed environment, to automate the repetitive wind tunnel tests and to control the data acquisition process and visualise the data, from locations remote to the control room. Apply Now. In essence, data acquisition is a process that involves collecting information to understand the electrical or physical phenomenon using sensors, measurement device, and a computer. R. China . R. China . The tunnel layout and the acquisition system are described together with some of the validation experimental runs. The specific application is for measuring hot engine gases. The tunnel has a test section with a rectangular 8' x 12' cross-section that is 10 feet long. 2. The data acquisition system is a PXI based system including Ni scxi-1125 module, which is used to . Zero Point data taken before and after a data run were applied to correct for temperature effects in the measured data. The wind tunnel was used to demonstrate the powerful winds you find in tornadoes and the dangers that go along with them.) Wind tunnels are useful research and educational tools for students to study problems related to several areas including fluid mechanics and aerodynamics. The 9- by 15-Foot Low-Speed Wind Tunnel (9x15) is the most utilized low-speed propulsion acoustic facility in the world. Save. In 2005, the Air Force funded Propulsion Wind Tunnel Sustainment Program provided AEDC with $80 million to upgrade PWT with the 21st century testing technology. WIND TUNNEL DATA ACQUISITION A world leader in fans, blowers, and ventilation equipment was seeking to update and automate a test system which validates and certies air ow of industrial fans and blowers. . ETW has the unique advantage that the signal conditioning equipment and the data acquisition computer are located in an Instrumentation Cabin that sits on top of the model cart. With years of combined experience, AEROLAB's engineering team can also design, assemble and calibrate a custom system to meet your exact requirements. The wind tunnel gives accurate results and is suitable for undergraduate study and research projects. Within the scope of the master thesis, different MEMS sensors were compared and evaluated by a measurement campaign on an aerodynamic blade model in a wind tunnel at ETH Zurich (ETHZ). Although the tunnel is well maintained, its data acquisition system has not kept pace with modem technology. The first set of wind tunnel experiments were designed to identify the aerodynamic loads on a single isolated heliostat. The design team used a sting and thrust balance system to measure the effects of lift and drag on their models. In the closed return tunnel, air is conducted from the exit of the test section back to the fan by a series of turning vanes. UC Davis Aeronautical Wind Tunnel (AWT) is used for both university affiliated research. The Brel & Kjr LAN-XI modular data acquisition system can be configured to easily handle the high number of channels typically found in wind tunnel systems. This page combines publications related to two different topics. Harbin Institute of Technology,Dept. A laboratory wind tunnel suitable for bench top operation. Sometimes an additional, separate, analog-inputs module was provided for measurements requiring very high sampling rates.