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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\/cn\/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":7490,"visits":10},{"authors":[{"fullName":"Rong Zhu Gan","fullOfficialName":"Prof. Rong Zhu Gan"},{"fullName":"Vikrant Palan, Ph.D.","fullOfficialName":" Vikrant Palan, Ph.D."}],"description":"

我们有幸于2022年7月26日远程采访了干荣珠教授。在她所在的科研领域里,她的声名如雷贯耳。她是俄克拉何马大学机械工程系的首席教授,已在该大学工作了25年,更重要的是,她是人耳力学领域的先驱之一。她做过中耳,内耳的有限元建模、植入式装置、组织生物力学等等。<\/p>","imageObject":{"variants":[{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/5\/6\/csm_gan_84250bdd87.jpg.webp","type":"image\/webp","name":"default","width":"570","breakpoint":"1200"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/5\/6\/csm_gan_84250bdd87.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\/magazine\/vibrometry\/image\/gan.jpg.webp","type":"image\/webp","name":"medium","width":"1380","breakpoint":"768"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/magazine\/vibrometry\/image\/gan.jpg","name":"medium","width":"1380","breakpoint":"768"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/5\/6\/csm_gan_0f252ecea2.jpg.webp","type":"image\/webp","name":"extrasmall","width":"640","breakpoint":"320"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/5\/6\/csm_gan_0f252ecea2.jpg","name":"extrasmall","width":"640","breakpoint":"320"}],"default":{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/5\/6\/csm_gan_84250bdd87.jpg","alt":"Prof. Rong Zhu Gan","title":""}},"link":"https:\/\/magazine.polytec.com\/cn\/%E5%90%AC%E5%8A%9B%E6%B5%8B%E8%AF%95%E9%A2%86%E8%B7%91%E8%80%85","origUid":7324,"readingTime":"3 min","subline":"听力测试领跑者","tags":[{"title":"Biology & medical","uid":4},{"title":"General R&D","uid":6}],"technologies":[{"title":"Vibrometry","uid":214}],"title":"庆祝干荣珠教授出色的职业生涯","uid":7324,"visits":76},{"authors":[{"fullName":"Kristian Kroschel","fullOfficialName":"Prof. Dr.-Ing. Kristian Kroschel"}],"description":"

心脏和循环系统疾病是人类最常见的致死病因——甚至比癌症还要严重!因此,我们要非常重视心脏的健康。那么该如何重视呢?我们知道,当医生使用心电图(ECG)测试心脏功能时,会观察脉搏上升曲线图。<\/p>","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\/cn\/%E9%9D%9E%E6%8E%A5%E8%A7%A6%E5%BC%8F%E8%A7%82%E5%AF%9F%E5%BF%83%E8%84%8F%E9%A2%A4%E5%8A%A8%E7%9B%B8%E5%BD%93%E4%BA%8E%E7%94%A8%E5%85%AB%E5%80%8D%E9%95%9C%E8%A7%82%E5%AF%9F%E8%99%BD%E8%BF%9C%E4%BD%86%E7%BA%A4%E6%AF%AB%E6%AF%95%E7%8E%B0","origUid":7199,"readingTime":"6 min","subline":"用激光测试心跳","tags":[{"title":"Biology & medical","uid":4}],"technologies":[{"title":"Vibrometry","uid":214}],"title":"非接触式观察心脏颤动,相当于用八倍镜观察,虽远,但纤毫毕现","uid":7199,"visits":282}],"articles":[{"authors":[],"datetime":null,"description":"

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\/cn\/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":7490,"visits":10},{"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\/cn\/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":7477,"visits":2},{"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\/cn\/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":7413,"visits":10},{"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\/cn\/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":7330,"visits":27},{"authors":[{"fullName":"Rong Zhu Gan","fullOfficialName":"Prof. Rong Zhu Gan"},{"fullName":"Vikrant Palan, Ph.D.","fullOfficialName":" Vikrant Palan, Ph.D."}],"description":"

我们有幸于2022年7月26日远程采访了干荣珠教授。在她所在的科研领域里,她的声名如雷贯耳。她是俄克拉何马大学机械工程系的首席教授,已在该大学工作了25年,更重要的是,她是人耳力学领域的先驱之一。她做过中耳,内耳的有限元建模、植入式装置、组织生物力学等等。<\/p>","imageObject":{"variants":[{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/5\/6\/csm_gan_84250bdd87.jpg.webp","type":"image\/webp","name":"default","width":"570","breakpoint":"1200"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/5\/6\/csm_gan_84250bdd87.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\/magazine\/vibrometry\/image\/gan.jpg.webp","type":"image\/webp","name":"medium","width":"1380","breakpoint":"768"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/magazine\/vibrometry\/image\/gan.jpg","name":"medium","width":"1380","breakpoint":"768"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/5\/6\/csm_gan_0f252ecea2.jpg.webp","type":"image\/webp","name":"extrasmall","width":"640","breakpoint":"320"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/5\/6\/csm_gan_0f252ecea2.jpg","name":"extrasmall","width":"640","breakpoint":"320"}],"default":{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/5\/6\/csm_gan_84250bdd87.jpg","alt":"Prof. Rong Zhu Gan","title":""}},"link":"https:\/\/magazine.polytec.com\/cn\/%E5%90%AC%E5%8A%9B%E6%B5%8B%E8%AF%95%E9%A2%86%E8%B7%91%E8%80%85","origUid":7324,"readingTime":"3 min","subline":"听力测试领跑者","tags":[{"title":"Biology & medical","uid":4},{"title":"General R&D","uid":6}],"technologies":[{"title":"Vibrometry","uid":214}],"title":"庆祝干荣珠教授出色的职业生涯","uid":7324,"visits":76},{"authors":[{"fullName":"Mareike Kohm","fullOfficialName":"Dr.-Ing. Mareike Kohm"},{"fullName":"Joline Dank","fullOfficialName":"M.Sc. Joline Dank"}],"description":"

随着人们对基础设施的安全性关注度越来越高,对现有结构的安全评估和剩余使用寿命预测提出了挑战。可靠的、技术上可行的和经济的健康监测解决方案是保证结构安全和满足用途的必要条件,是获得有关结构损伤过程和当前结构特性的有用信息的关键前提。<\/p>","imageObject":{"variants":[{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/e\/5\/csm_validation-of-bridge-superstructures_f04c99bf7c.jpg.webp","type":"image\/webp","name":"default","width":"570","breakpoint":"1200"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/e\/5\/csm_validation-of-bridge-superstructures_f04c99bf7c.jpg","name":"default","width":"570","breakpoint":"1200"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/e\/5\/csm_validation-of-bridge-superstructures_307755a405.jpg.webp","type":"image\/webp","name":"large","width":"900","breakpoint":"992"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/e\/5\/csm_validation-of-bridge-superstructures_307755a405.jpg","name":"large","width":"900","breakpoint":"992"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/magazine\/vibrometry\/image\/validation-of-bridge-superstructures.jpg.webp","type":"image\/webp","name":"medium","width":"1380","breakpoint":"768"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/magazine\/vibrometry\/image\/validation-of-bridge-superstructures.jpg","name":"medium","width":"1380","breakpoint":"768"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/e\/5\/csm_validation-of-bridge-superstructures_51f3a3435e.jpg.webp","type":"image\/webp","name":"extrasmall","width":"640","breakpoint":"320"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/e\/5\/csm_validation-of-bridge-superstructures_51f3a3435e.jpg","name":"extrasmall","width":"640","breakpoint":"320"}],"default":{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/e\/5\/csm_validation-of-bridge-superstructures_f04c99bf7c.jpg","alt":"Bridge","title":""}},"link":"https:\/\/magazine.polytec.com\/cn\/%E6%A1%A5%E6%A2%81%E4%B8%8A%E9%83%A8%E7%BB%93%E6%9E%84%E7%9A%84%E8%AF%95%E9%AA%8C%E6%A8%A1%E6%80%81%E9%AA%8C%E8%AF%81","origUid":7259,"readingTime":"5 min","subline":"桥梁上部结构的试验模态验证","tags":[{"title":"General R&D","uid":6},{"title":"Civil & structural engineering","uid":7}],"technologies":[{"title":"Vibrometry","uid":214}],"title":"基于模态测试的监测系统","uid":7259,"visits":104},{"authors":[{"fullName":"Kristian Kroschel","fullOfficialName":"Prof. Dr.-Ing. Kristian Kroschel"}],"description":"

心脏和循环系统疾病是人类最常见的致死病因——甚至比癌症还要严重!因此,我们要非常重视心脏的健康。那么该如何重视呢?我们知道,当医生使用心电图(ECG)测试心脏功能时,会观察脉搏上升曲线图。<\/p>","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\/cn\/%E9%9D%9E%E6%8E%A5%E8%A7%A6%E5%BC%8F%E8%A7%82%E5%AF%9F%E5%BF%83%E8%84%8F%E9%A2%A4%E5%8A%A8%E7%9B%B8%E5%BD%93%E4%BA%8E%E7%94%A8%E5%85%AB%E5%80%8D%E9%95%9C%E8%A7%82%E5%AF%9F%E8%99%BD%E8%BF%9C%E4%BD%86%E7%BA%A4%E6%AF%AB%E6%AF%95%E7%8E%B0","origUid":7199,"readingTime":"6 min","subline":"用激光测试心跳","tags":[{"title":"Biology & medical","uid":4}],"technologies":[{"title":"Vibrometry","uid":214}],"title":"非接触式观察心脏颤动,相当于用八倍镜观察,虽远,但纤毫毕现","uid":7199,"visits":282},{"authors":[{"fullName":"Harald Mittelhammer","fullOfficialName":" Harald Mittelhammer"}],"description":"

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