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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. One of the culprits of poor sound quality is the singing capacitor, a term that has been widely adopted in the industry. 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. One of the culprits of poor sound quality is the singing capacitor, a term that has been widely adopted in the industry.<\/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\/sea\/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":7511,"visits":14},{"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\/sea\/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":7478,"visits":22},{"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\/sea\/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":7452,"visits":22},{"authors":[],"datetime":null,"description":"

The smartphone has shown that buttons can be replaced without sacrificing comfort. The freely configurable display with gesture control has made it even easier to switch between applications. Hap2U drives this revolution in human machine interfacing forward. Its novel technology adds high fidelity haptic feedback...<\/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":"haptische Displays","title":""}},"link":"https:\/\/magazine.polytec.com\/sea\/feeling-the-invisible","origUid":6708,"readingTime":"7 min","subline":"Feeling the invisible","tags":[{"title":"Acoustics & ultrasonics","uid":2},{"title":"Automotive & aerospace","uid":3},{"title":"Electronics, semicon, solar","uid":5}],"technologies":[{"title":"Technology Areas Magazine EU","uid":215},{"title":"Vibrometry","uid":214}],"title":"Laser vibrometry visualizing haptic feedback","uid":6712,"visits":426},{"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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