Polytec Magazine - Polytec Magazine

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In the realm of vibration testing, a significant obstacle arises in the form of mass loading. The behavior of a dynamic vibration sample, or device under test (DUT), is profoundly influenced by the additional mass applied to it. This phenomenon is particularly pronounced in vibrating cantilevered beams, and it becomes even more intricate when dealing with curved cantilevered beams like turbine blades. ...<\/p>","imageObject":{"variants":[{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/d\/2\/csm_mass-loading-turbines_b68719019e.jpg.webp","type":"image\/webp","name":"default","width":"570","breakpoint":"1200"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/d\/2\/csm_mass-loading-turbines_b68719019e.jpg","name":"default","width":"570","breakpoint":"1200"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/d\/2\/csm_mass-loading-turbines_f7b274423b.jpg.webp","type":"image\/webp","name":"large","width":"900","breakpoint":"992"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/d\/2\/csm_mass-loading-turbines_f7b274423b.jpg","name":"large","width":"900","breakpoint":"992"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/magazine\/vibrometry\/image\/mass-loading-turbines.jpg.webp","type":"image\/webp","name":"medium","width":"1380","breakpoint":"768"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/magazine\/vibrometry\/image\/mass-loading-turbines.jpg","name":"medium","width":"1380","breakpoint":"768"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/d\/2\/csm_mass-loading-turbines_e77d023793.jpg.webp","type":"image\/webp","name":"extrasmall","width":"640","breakpoint":"320"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/d\/2\/csm_mass-loading-turbines_e77d023793.jpg","name":"extrasmall","width":"640","breakpoint":"320"}],"default":{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/d\/2\/csm_mass-loading-turbines_b68719019e.jpg","alt":"","title":""}},"link":"https:\/\/magazine.polytec.com\/us\/effects-of-mass-loading","origUid":7487,"readingTime":"5 min","subline":"Effects of mass loading","tags":[{"title":"General R&D","uid":6},{"title":"Automotive & aerospace","uid":3},{"title":"Civil & structural engineering","uid":7},{"title":"Materials research & NDT","uid":9}],"technologies":[{"title":"Vibrometry","uid":214}],"title":"When to choose a laser Doppler vibrometer for vibration measurement","uid":7488,"visits":23},{"authors":[],"datetime":null,"description":"

Climate change is one of the dominating challenges of modern society and industry. Even though steel is one of the worlds most recycled materials, the steel industry remains the largest industrial emitter of carbon dioxide. For a more sustainability and responsible manufacturing, ProSpeed® Laser Surface Velocimeters can assist in process control ...<\/p>","imageObject":{"variants":[{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/c\/0\/csm_steel-process-control_a545f11d3a.jpg.webp","type":"image\/webp","name":"default","width":"570","breakpoint":"1200"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/c\/0\/csm_steel-process-control_a545f11d3a.jpg","name":"default","width":"570","breakpoint":"1200"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/c\/0\/csm_steel-process-control_483ef93ce9.jpg.webp","type":"image\/webp","name":"large","width":"900","breakpoint":"992"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/c\/0\/csm_steel-process-control_483ef93ce9.jpg","name":"large","width":"900","breakpoint":"992"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/c\/0\/csm_steel-process-control_f90c32bdda.jpg.webp","type":"image\/webp","name":"medium","width":"1380","breakpoint":"768"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/c\/0\/csm_steel-process-control_f90c32bdda.jpg","name":"medium","width":"1380","breakpoint":"768"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/c\/0\/csm_steel-process-control_f7103acc1e.jpg.webp","type":"image\/webp","name":"extrasmall","width":"640","breakpoint":"320"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/c\/0\/csm_steel-process-control_f7103acc1e.jpg","name":"extrasmall","width":"640","breakpoint":"320"}],"default":{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/c\/0\/csm_steel-process-control_a545f11d3a.jpg","alt":"Steel process control","title":""}},"link":"https:\/\/magazine.polytec.com\/us\/sustainable-production-in-steel-and-metals-industry","origUid":7326,"readingTime":"3 min","subline":"Sustainable production in steel and metals industry","tags":[{"title":"Production, process & quality","uid":12},{"title":"Automotive & aerospace","uid":3},{"title":"Civil & structural engineering","uid":7}],"technologies":[{"title":"Velocimetry","uid":213}],"title":"Efficient process control using ProSpeed® laser speed and length sensors","uid":7329,"visits":54},{"authors":[],"datetime":null,"description":"

We had a chance to virtually sit down for an interview with Prof. Rong Zhu Gan. In her field, she is one of those personalities that needs no introduction. For the uninitiated, she is the George Lynn Cross Research Professor, Presidential Research Professor, Charles E. Foster Chair, and Prof. of Biomedical and Mechanical Engineering, School of Aerospace & Mechanical Engineering at The University of Oklahoma and has been there for 25 years.<\/p>","imageObject":{"variants":[{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/5\/6\/csm_gan_f3c714ecde.jpg.webp","type":"image\/webp","name":"default","width":"570","breakpoint":"1200"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/5\/6\/csm_gan_f3c714ecde.jpg","name":"default","width":"570","breakpoint":"1200"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/magazine\/vibrometry\/image\/gan.jpg.webp","type":"image\/webp","name":"large","width":"900","breakpoint":"992"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/magazine\/vibrometry\/image\/gan.jpg","name":"large","width":"900","breakpoint":"992"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/5\/6\/csm_gan_649c389d42.jpg.webp","type":"image\/webp","name":"medium","width":"1380","breakpoint":"768"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/5\/6\/csm_gan_649c389d42.jpg","name":"medium","width":"1380","breakpoint":"768"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/5\/6\/csm_gan_b5080a53f0.jpg.webp","type":"image\/webp","name":"extrasmall","width":"640","breakpoint":"320"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/5\/6\/csm_gan_b5080a53f0.jpg","name":"extrasmall","width":"640","breakpoint":"320"}],"default":{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/5\/6\/csm_gan_f3c714ecde.jpg","alt":"Prof. Rong Zhu Gan","title":""}},"link":"https:\/\/magazine.polytec.com\/us\/a-trend-setter-in-hearing-research","origUid":7265,"readingTime":"3 min","subline":"A trend-setter in hearing research","tags":[{"title":"Biology & medical","uid":4},{"title":"General R&D","uid":6}],"technologies":[{"title":"Vibrometry","uid":214}],"title":"Celebrating the iconic career of Professor Rong Z. Gan","uid":7268,"visits":457}],"articles":[{"authors":[],"datetime":null,"description":"

Piezoelectric disk resonators are designed to transduce specific contour mode bulk acoustic wave (BAW) resonant shapes. Utilizing a unique property of lead magnesium niobite-lead titanate (PMN-PT) thin films, microfabricated disk resonators are characterized using laser Doppler vibrometry. PMN-PT is a ferroelectric material that is known for its piezoelectric and electrostrictive properties.<\/p>","imageObject":{"variants":[{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/0\/9\/csm_piezo-materials-and-wine-glasses_fe95840a9f.jpg.webp","type":"image\/webp","name":"default","width":"570","breakpoint":"1200"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/0\/9\/csm_piezo-materials-and-wine-glasses_fe95840a9f.jpg","name":"default","width":"570","breakpoint":"1200"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/0\/9\/csm_piezo-materials-and-wine-glasses_28f7b9110b.jpg.webp","type":"image\/webp","name":"large","width":"900","breakpoint":"992"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/0\/9\/csm_piezo-materials-and-wine-glasses_28f7b9110b.jpg","name":"large","width":"900","breakpoint":"992"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/0\/9\/csm_piezo-materials-and-wine-glasses_5123b60cb4.jpg.webp","type":"image\/webp","name":"medium","width":"1380","breakpoint":"768"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/0\/9\/csm_piezo-materials-and-wine-glasses_5123b60cb4.jpg","name":"medium","width":"1380","breakpoint":"768"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/0\/9\/csm_piezo-materials-and-wine-glasses_ede57fffc6.jpg.webp","type":"image\/webp","name":"extrasmall","width":"640","breakpoint":"320"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/0\/9\/csm_piezo-materials-and-wine-glasses_ede57fffc6.jpg","name":"extrasmall","width":"640","breakpoint":"320"}],"default":{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/0\/9\/csm_piezo-materials-and-wine-glasses_fe95840a9f.jpg","alt":"","title":""}},"link":"https:\/\/magazine.polytec.com\/us\/what-you-always-wanted-to-know-about-piezo-materials-and-wine-glasses","origUid":7474,"readingTime":"4 min","subline":"What you always wanted to know about piezo materials and wine glasses","tags":[{"title":"Electronics, semicon, solar","uid":5},{"title":"General R&D","uid":6},{"title":"Materials research & NDT","uid":9},{"title":"Micro & nanotechnology","uid":10}],"technologies":[{"title":"Vibrometry","uid":214}],"title":"Single electrode transduction of contour modes in piezoelectric disk resonators","uid":7475,"visits":32},{"authors":[],"datetime":null,"description":"

Atomic Force Microscopy (AFM) is a powerful and versatile nanoscale imaging technique that has revolutionized our understanding of surfaces and materials at the atomic and molecular scale. By enabling high-resolution imaging, force measurement, and manipulation of materials on the nanometer scale ...<\/p>","imageObject":{"variants":[{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/8\/f\/csm_interferometric-piezoresponse-force-microscopy-afm_b50d50671e.jpg.webp","type":"image\/webp","name":"default","width":"570","breakpoint":"1200"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/8\/f\/csm_interferometric-piezoresponse-force-microscopy-afm_b50d50671e.jpg","name":"default","width":"570","breakpoint":"1200"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/8\/f\/csm_interferometric-piezoresponse-force-microscopy-afm_ac40ab27f2.jpg.webp","type":"image\/webp","name":"large","width":"900","breakpoint":"992"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/8\/f\/csm_interferometric-piezoresponse-force-microscopy-afm_ac40ab27f2.jpg","name":"large","width":"900","breakpoint":"992"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/magazine\/vibrometry\/image\/interferometric-piezoresponse-force-microscopy-afm.jpg.webp","type":"image\/webp","name":"medium","width":"1380","breakpoint":"768"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/magazine\/vibrometry\/image\/interferometric-piezoresponse-force-microscopy-afm.jpg","name":"medium","width":"1380","breakpoint":"768"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/8\/f\/csm_interferometric-piezoresponse-force-microscopy-afm_fdb0b75216.jpg.webp","type":"image\/webp","name":"extrasmall","width":"640","breakpoint":"320"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/8\/f\/csm_interferometric-piezoresponse-force-microscopy-afm_fdb0b75216.jpg","name":"extrasmall","width":"640","breakpoint":"320"}],"default":{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/8\/f\/csm_interferometric-piezoresponse-force-microscopy-afm_b50d50671e.jpg","alt":"","title":""}},"link":"https:\/\/magazine.polytec.com\/us\/ldv-based-displacement-sensor-afm-enables-more-quantitative-measurements","origUid":7409,"readingTime":"8 min","subline":"Interferometric piezoresponse force microscopy: accurate and repeatable","tags":[{"title":"Materials research & NDT","uid":9},{"title":"Micro & nanotechnology","uid":10}],"technologies":[{"title":"Vibrometry","uid":214}],"title":"LDV based displacement sensor AFM enables more quantitative measurements","uid":7411,"visits":29},{"authors":[],"datetime":null,"description":"

Metamaterials are artificial assemblies of known materials in particular arrangements that result in novel properties not encountered in naturally occurring materials. Among many applications, they hold great promise for vibration insulation, noise control, wave-guiding and energy harvesting technologies. In our work we use reconfigurable LEGO pieces and laser Doppler vibrometry to ...<\/p>","imageObject":{"variants":[{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/1\/9\/csm_wave-propagation-metamaterials_5632d5d112.jpg.webp","type":"image\/webp","name":"default","width":"570","breakpoint":"1200"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/1\/9\/csm_wave-propagation-metamaterials_5632d5d112.jpg","name":"default","width":"570","breakpoint":"1200"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/1\/9\/csm_wave-propagation-metamaterials_b6e2d64fc8.jpg.webp","type":"image\/webp","name":"large","width":"900","breakpoint":"992"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/1\/9\/csm_wave-propagation-metamaterials_b6e2d64fc8.jpg","name":"large","width":"900","breakpoint":"992"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/1\/9\/csm_wave-propagation-metamaterials_c0d56424e3.jpg.webp","type":"image\/webp","name":"medium","width":"1380","breakpoint":"768"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/1\/9\/csm_wave-propagation-metamaterials_c0d56424e3.jpg","name":"medium","width":"1380","breakpoint":"768"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/1\/9\/csm_wave-propagation-metamaterials_9ce263198f.jpg.webp","type":"image\/webp","name":"extrasmall","width":"640","breakpoint":"320"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/1\/9\/csm_wave-propagation-metamaterials_9ce263198f.jpg","name":"extrasmall","width":"640","breakpoint":"320"}],"default":{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/1\/9\/csm_wave-propagation-metamaterials_5632d5d112.jpg","alt":"","title":""}},"link":"https:\/\/magazine.polytec.com\/us\/wave-propagation-and-vibrations","origUid":7185,"readingTime":"6 min","subline":"Wave propagation and vibrations of LEGO assemblies","tags":[{"title":"Civil & structural engineering","uid":7},{"title":"Materials research & NDT","uid":9}],"technologies":[{"title":"Vibrometry","uid":214}],"title":"Using toys to investigate the complex physics of quasi-periodic metamaterials","uid":7188,"visits":272},{"authors":[],"datetime":null,"description":"

MAN Energy Solutions offers a comprehensive engine portfolio, propeller, and stern equipment and turbochargers for the maritime sector. Reliability is an essential aspect of our sector and especially vital on ships. During the development phase, simulation models are validated and optimized using modal tests, and examined until the components are released for series production.<\/p>\r\n\r\n","imageObject":{"variants":[{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/0\/7\/csm_turbolader-schiffsmotoren_d1d42e4f8b.jpg.webp","type":"image\/webp","name":"default","width":"570","breakpoint":"1200"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/0\/7\/csm_turbolader-schiffsmotoren_d1d42e4f8b.jpg","name":"default","width":"570","breakpoint":"1200"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/0\/7\/csm_turbolader-schiffsmotoren_5ec2c5b1dc.jpg.webp","type":"image\/webp","name":"large","width":"900","breakpoint":"992"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/0\/7\/csm_turbolader-schiffsmotoren_5ec2c5b1dc.jpg","name":"large","width":"900","breakpoint":"992"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/magazine\/vibrometry\/image\/turbolader-schiffsmotoren.jpg.webp","type":"image\/webp","name":"medium","width":"1380","breakpoint":"768"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/magazine\/vibrometry\/image\/turbolader-schiffsmotoren.jpg","name":"medium","width":"1380","breakpoint":"768"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/0\/7\/csm_turbolader-schiffsmotoren_ae84c87e3a.jpg.webp","type":"image\/webp","name":"extrasmall","width":"640","breakpoint":"320"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/0\/7\/csm_turbolader-schiffsmotoren_ae84c87e3a.jpg","name":"extrasmall","width":"640","breakpoint":"320"}],"default":{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/0\/7\/csm_turbolader-schiffsmotoren_d1d42e4f8b.jpg","alt":"","title":""}},"link":"https:\/\/magazine.polytec.com\/us\/laser-vibrometry-in-the-development-of-turbochargers-for-ship-engines","origUid":7129,"readingTime":"5 min","subline":"Laser vibrometry in the development of turbochargers for ship engines","tags":[{"title":"General R&D","uid":6}],"technologies":[{"title":"Vibrometry","uid":214}],"title":"Boundary conditions, measurement inaccuracy, and repeatability","uid":7130,"visits":222},{"authors":[],"datetime":null,"description":"

Diseases of the heart and circulation are the most common cause of death - even before cancer! So we should pay a lot of attention to the health of the heart. But how? Everyone knows the rise of pulse when the doctor measures the heart function, for example, with the electrocardiogram (ECG). It would be better to check the heart function unnoticed, e.g. when brushing your teeth in the morning.<\/p>\r\n\r\n","imageObject":{"variants":[{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/0\/f\/csm_cardiac-fibrillation-from-distance_672045e019.jpg.webp","type":"image\/webp","name":"default","width":"570","breakpoint":"1200"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/0\/f\/csm_cardiac-fibrillation-from-distance_672045e019.jpg","name":"default","width":"570","breakpoint":"1200"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/0\/f\/csm_cardiac-fibrillation-from-distance_09a48cd7b5.jpg.webp","type":"image\/webp","name":"large","width":"900","breakpoint":"992"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/0\/f\/csm_cardiac-fibrillation-from-distance_09a48cd7b5.jpg","name":"large","width":"900","breakpoint":"992"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/magazine\/vibrometry\/image\/cardiac-fibrillation-from-distance.jpg.webp","type":"image\/webp","name":"medium","width":"1380","breakpoint":"768"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/magazine\/vibrometry\/image\/cardiac-fibrillation-from-distance.jpg","name":"medium","width":"1380","breakpoint":"768"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/0\/f\/csm_cardiac-fibrillation-from-distance_7cdbdd533d.jpg.webp","type":"image\/webp","name":"extrasmall","width":"640","breakpoint":"320"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/0\/f\/csm_cardiac-fibrillation-from-distance_7cdbdd533d.jpg","name":"extrasmall","width":"640","breakpoint":"320"}],"default":{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/0\/f\/csm_cardiac-fibrillation-from-distance_672045e019.jpg","alt":"","title":""}},"link":"https:\/\/magazine.polytec.com\/us\/observing-cardiac-fibrillation-from-a-distance","origUid":7120,"readingTime":"6 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