b'Aerospace & Defense | Engineer Innovationcomputer running the applicationis lost during critical tests. Siemens PLMacoustic wind tunnel is processed during software for controlling the acquisition,Software provides a dedicatedthe acquisition and instantly provides a processing the data and storing thearchitecture to safely handle high-datamap of the sources on the test object, results. A wide variety of tests must bestreams with virtually unlimited channelallowing the engineer to understand the performed in an aerospace testing lab.counts. By using multiple recordingnoise generation mechanisms. Verifying The modular design of the Simcentersystems in parallel, controlled by athe physical meaning of the measured SCADAS hardware allows to ideally scalecentral operator station, data is safelydata in that way allows to confirm the the measurement system to the testingrecorded and backed-up with no singlevalidity of the test results on-the-spot. It need. Independent SCADAS frames canpoint of failure. Data is also seamlesslyalso allows for the acceleration of the be mixed and matched to assemble astreamed online on monitoring screenstest campaign and make the best use of large channel-count system, with perfectto closely follow the evolution ofthe limited testing time by testing what synchronization between all channels.the test.is really needed.Having such a scalable architecture offers flexibility and allows engineers toIn case of satellite vibration qualificationIn the end, using lots of measurement handle tests ranging from few channelstesting, selected measurement pointssensors only makes sense if the data can to several hundreds of channels.are typically used by a closed-loopefficiently be processed and brings Distributing systems becomes possiblecontroller to ensure that the excitationadditional physical insights into the and enables easy set-up and improvedsignal exactly matches the testperformance of the tested object. While accuracy by minimizing sensor cablespecifications. Having the possibility toaviation and space systems continue to length.acquire hundreds of channels in thegrow in complexity, simulation models Simcenter measurement system in fullare also getting more advanced and Managing complex instrumentationsynchronization with the control systemallow for more complex simulations of plans is a great asset. It maximizes the safetymulti-physics phenomena. Simcenter Instrumentation of the tested itemof such sensitive tests, does notTesting solutions combine accurate and happens at the beginning of the testinterfere with the controller system andreliable data acquisition capabilities with campaign before collecting any actualguarantees data availability at the endstate-of-the-art processing algorithms. data. It is essential to execute this taskof the test.Massive amounts of data are properly to match the test requirementsmethodically managed to provide and ensure the right level of accuracy.Providing more physical insights additional physical insights and enable The Simcenter Testlab InstrumentationOnline and offline data validationsmarter performance engineering. The App, installed on any mobile device,capabilities allow processing of the dataSimcenter SCADAS hardware and allows the engineer to freely moveduring or right after the test and provideSimcenter Testlab Software combine the around the structure while remotelyquick feedback on measurement quality.latest technologies to perform large controlling the acquisition software toFor example, data acquired withchannel-count dynamic measurements define the sensor parameters, documenthundreds of array microphones in anaccurately and efficiently. nthe set-up and take pictures of each sensorwhich are automatically stored with the corresponding measured data. Transducer parameters, such as serial number or sensitivity, can also be directly read from the sensors and updated in the test channel set-up. This minimizes the risk of manually entering a wrong value and ending up with incorrect measurements.Dealing with massive amounts of dataOnce the measurement set-up has been verified, actual data collection and processing can start. Digital data is streamed at high speed from the acquisition systems to the host computer. When talking about hundreds of sensors on a spacecraft, aircraft or aeroengine, this represents a massive amount of data, especially when sampled at high-speed, and not every acquisition system can deal with such complexity. The system should be properly designed to handle these highFigure 2: Data is seamlessly streamed online on monitoring screens to closely follow the throughput rates and make sure no dataevolution of the test57'