An Ear for Gears - Understanding Gearbox Signatures

Speed reducers and other gearboxes are common industrial components. Monitoring their case vibration with accelerometers is an effective means of detecting problems within. To effectively diagnose these important mechanical elements, you need to understand the geometric details of their construction. Most importantly, you need to know the arrangement of shafts and the number of teeth on every gear within your transmission.

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Welcome Trung-Duong Nguyen - Application Engineer

Crystal Instruments welcomes Trung-Duong Nguyen as our newest Application Engineer. Trung-Duong has both a Bachelor’s and a Master’s degree in Aerospace Engineering, focused on space system transportation, CFD. Trung-Duong is experienced in FEA analysis, vibration, and system engineering. His master project was about using the classical approach of dynamics to measure strain and stress on a wing both experimentally and theoretically. Trung-Duong’s most recent achievements are the completion of full FEA Analysis on an aircraft’s amplifier and designing an altitude chamber to simulate and test avionic modules at 20,000 ft. Trung-Duong is also a martial art instructor, and in his spare time, he explores and learn techniques of digital concept art. He has an active lifestyle and believes that every day must be well spent with progression.

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Data Acquisition and Vibration Controller System Delivered to Purdue University

Crystal Instruments is proud to provide quality test equipment to higher education institutes. Recently, Crystal Instruments delivered a data acquisition and vibration control system to Purdue University's laboratories for the Department of Mechanical Engineering. Included in the delivery was a full set of hardware equipped with software to enable complete shaker test control functions, iPad control in Dynamic Signal Analysis mode, and a premium version of EDM Post Analyzer software.

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Ethernet Becomes the Standard for Vibration Controllers

The major difference between CI and other Ethernet based controller products is that CI uses IEEE 1588 PTP to synchronize the sampling clock on different hardware units. The other products on the market usually require an additional trigger bus besides the Ethernet cable. The beauty of IEEE 1588 PTP is that all time synchronization is conducted on the same Ethernet cable that is used for network communication.

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Define and Measure Dynamic Range

One of the breakthrough features of the CoCo-80, Spider-80X, and Spider-81 is their outstanding dynamic range performance of 160 dBFS. This kind of performance has never before been achieved with such small, portable, and low cost devices. The main advantage of this high dynamic range is that it eliminates the need to adjust the input gain/range settings on the front end, thus simplifying the setup and measurement process. Both full scale 10 volt signals and very small microvolt signals are measured at the same time with no adjustments. This capability makes setup and testing more simplified in comparison with an instrument capable of only a lower dynamic range.

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