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Everybody enjoys good sound quality on a mobile device when watching a show or when communicating with friends and family or in a business environment. On the other hand, we cringe when something is off with the audio. ...<\/p>","imageObject":{"variants":[{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/f\/1\/csm_singing-capacitors_77c97ae34f.jpg.webp","type":"image\/webp","name":"default","width":"570","breakpoint":"1200"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/f\/1\/csm_singing-capacitors_77c97ae34f.jpg","name":"default","width":"570","breakpoint":"1200"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/f\/1\/csm_singing-capacitors_a4cbc856ec.jpg.webp","type":"image\/webp","name":"large","width":"900","breakpoint":"992"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/f\/1\/csm_singing-capacitors_a4cbc856ec.jpg","name":"large","width":"900","breakpoint":"992"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/magazine\/vibrometry\/image\/singing-capacitors.jpg.webp","type":"image\/webp","name":"medium","width":"1380","breakpoint":"768"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/magazine\/vibrometry\/image\/singing-capacitors.jpg","name":"medium","width":"1380","breakpoint":"768"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/f\/1\/csm_singing-capacitors_605bd15f02.jpg.webp","type":"image\/webp","name":"extrasmall","width":"640","breakpoint":"320"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/f\/1\/csm_singing-capacitors_605bd15f02.jpg","name":"extrasmall","width":"640","breakpoint":"320"}],"default":{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/f\/1\/csm_singing-capacitors_77c97ae34f.jpg","alt":"","title":""}},"link":"https:\/\/magazine.polytec.com\/fr\/how-singing-capacitors-affect-the-audio-experience-in-consumer-electronics","origUid":7496,"readingTime":"3 min","subline":"Bad singers","tags":[{"title":"Acoustics & ultrasonics","uid":2},{"title":"Automotive & aerospace","uid":3},{"title":"Electronics, semicon, solar","uid":5}],"technologies":[{"title":"Vibrometry","uid":214}],"title":"How singing capacitors affect the audio experience in consumer electronics","uid":7513,"visits":16},{"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\/fr\/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":7480,"visits":21},{"authors":[],"datetime":null,"description":"

Haptic holography or mid-air haptics promises to bring virtual reality to life, but a new study reveals a surprising physical obstacle that will need to be overcome. A research team at UC Santa Barbara has discovered a new phenomenon ...<\/p>","imageObject":{"variants":[{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/d\/9\/csm_haptic-holography_8fa081b296.jpg.webp","type":"image\/webp","name":"default","width":"570","breakpoint":"1200"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/d\/9\/csm_haptic-holography_8fa081b296.jpg","name":"default","width":"570","breakpoint":"1200"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/d\/9\/csm_haptic-holography_eac6ae978b.jpg.webp","type":"image\/webp","name":"large","width":"900","breakpoint":"992"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/d\/9\/csm_haptic-holography_eac6ae978b.jpg","name":"large","width":"900","breakpoint":"992"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/magazine\/vibrometry\/image\/haptic-holography.jpg.webp","type":"image\/webp","name":"medium","width":"1380","breakpoint":"768"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/magazine\/vibrometry\/image\/haptic-holography.jpg","name":"medium","width":"1380","breakpoint":"768"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/d\/9\/csm_haptic-holography_fef88a7e20.jpg.webp","type":"image\/webp","name":"extrasmall","width":"640","breakpoint":"320"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/d\/9\/csm_haptic-holography_fef88a7e20.jpg","name":"extrasmall","width":"640","breakpoint":"320"}],"default":{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/d\/9\/csm_haptic-holography_8fa081b296.jpg","alt":"","title":""}},"link":"https:\/\/magazine.polytec.com\/fr\/laser-vibrometry-sheds-light-on-secrets-of-haptic-holography","origUid":7443,"readingTime":"6 min","subline":"Laser vibrometry sheds light on secrets of haptic holography","tags":[{"title":"Acoustics & ultrasonics","uid":2},{"title":"Electronics, semicon, solar","uid":5}],"technologies":[{"title":"Vibrometry","uid":214}],"title":"How shear shock waves influence perception","uid":7454,"visits":24},{"authors":[{"fullName":"Matthieu Rupin","fullOfficialName":"Dr. Matthieu Rupin"}],"description":"

Le smartphone a montré que les boutons peuvent être remplacés sans sacrifier le confort. Bien au contraire: l’affichage librement configurable avec commande gestuelle a facilité le passage d’une application à l’autre. Par sa technologie de retour haptique révolutionnaire, Hap2U s’est donné pour objectif...<\/p>","imageObject":{"variants":[{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/6\/b\/csm_haptic-displays_bae910fdc1.jpg.webp","type":"image\/webp","name":"default","width":"570","breakpoint":"1200"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/6\/b\/csm_haptic-displays_bae910fdc1.jpg","name":"default","width":"570","breakpoint":"1200"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/6\/b\/csm_haptic-displays_8613255841.jpg.webp","type":"image\/webp","name":"large","width":"900","breakpoint":"992"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/6\/b\/csm_haptic-displays_8613255841.jpg","name":"large","width":"900","breakpoint":"992"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/magazine\/vibrometry\/image\/haptic-displays.jpg.webp","type":"image\/webp","name":"medium","width":"1380","breakpoint":"768"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/magazine\/vibrometry\/image\/haptic-displays.jpg","name":"medium","width":"1380","breakpoint":"768"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/6\/b\/csm_haptic-displays_1013b97d09.jpg.webp","type":"image\/webp","name":"extrasmall","width":"640","breakpoint":"320"},{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/6\/b\/csm_haptic-displays_1013b97d09.jpg","name":"extrasmall","width":"640","breakpoint":"320"}],"default":{"src":"https:\/\/magazine.polytec.com\/fileadmin\/_processed_\/6\/b\/csm_haptic-displays_bae910fdc1.jpg","alt":"Haptic displays","title":""}},"link":"https:\/\/magazine.polytec.com\/fr\/vibrometrie-laser-pour-visualiser-le-retour-haptique","origUid":6715,"readingTime":"7 min","subline":"Sentir l‘invisible","tags":[{"title":"Acoustics & ultrasonics","uid":2},{"title":"Automotive & aerospace","uid":3},{"title":"Electronics, semicon, solar","uid":5}],"technologies":[{"title":"Vibrometry","uid":214}],"title":"Vibrométrie laser pour visualiser le retour haptique","uid":6715,"visits":750},{"authors":[],"datetime":null,"description":"

For applications where tactile surface measurement techniques have shortcomings, non-contact optical instruments have been developed to overcome these shortcomings. 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