Inzwi purojekita pa "acoustic lenzi" - ngationei kuti tekinoroji inoshanda sei

Tiri kukurukura nezvemudziyo wekufambisira nzwimbo yekunanga. Iyo inoshandisa yakakosha "acoustic lenses", uye yayo inoshanda musimboti yakafanana neye optical system yekamera.

Pamusoro pekusiyana kweacoustic metamatadium

Nezvakasiyana metamatadium, iyo acoustic zvimiro zvinoenderana nechimiro chemukati, mainjiniya nemasainzi vanga vachishanda pazviri kwenguva yakareba. Somuenzaniso, muna 2015, mafizikisi akakwanisa type pane 3D printer, "acoustic diode" - inzira yecylindrical inobvumira mweya kupfuura, asi inonyatsoratidza ruzha runobva kune imwe nzira chete.

Zvakare gore rino, mainjiniya ekuAmerica akagadzira mhete yakakosha inovhara kusvika 94% yeruzha. Yayo kushanda musimboti inobva Fano resonance, apo simba remafungu maviri anopindira rinogoverwa asymmetrically. Takataura zvakawanda nezve mudziyo uyu mune imwe yedu mbiru.

Mukutanga kwaNyamavhuvhu, kumwe kukwidziridzwa kwekuteerera kwakazivikanwa. Injiniya kubva kuYunivhesiti yeSussex yakaunzwa prototype yemudziyo uyo, uchishandisa maviri metamaterials ("acoustic lenses") uye vhidhiyo kamera, inokubvumira kuti utarise ruzha pane mumwe munhu. Mudziyo wacho wainzi “sound projector.”

Sei basa iri

Pamberi peinzwi sosi (audio speaker) kune maviri "acoustic lenses". Aya lenzi iplatifomu yakadhindwa ye3D ine maburi akawanda. Iwe unogona kuona kuti aya "lenses" anotaridzika sei developer whitepaper pane peji rekutanga (iwe unofanirwa kuvhura zvinyorwa zvizere zvegwaro).

Gomba rimwe nerimwe mu "audio lens" rine chimiro chakasiyana - semuenzaniso, zvisiri izvo pamadziro emukati. Kana ruzha rwapfuura nemumaburi aya, rwunochinja chikamu chayo. Sezvo chinhambwe chiri pakati pe "acoustic lenses" maviri chinogona kusiyanisa uchishandisa mota dzemagetsi, zvinogoneka kutungamira ruzha kune imwe pfungwa. Maitiro acho anoyeuchidza kutarisa kamera optics.

Kutarisa kunongoitika. Izvi zvinoitwa uchishandisa vhidhiyo kamera (inodhura ingangoita madhora gumi nemaviri) uye yakakosha software algorithm. Inorangarira chiso chemunhu muvhidhiyo uye inoronda mafambiro ake mufuremu. Tevere, sisitimu inoverengera chinhambwe uye inoshandura kureba kweiyo purojekita zvinoenderana.

Ichashandiswa kupi?

Developers kupembererakuti mune ramangwana sisitimu inogona kutsiva mahedhifoni - zvishandiso zvichatepfenyura ruzha kubva kure zvakananga kune nzeve dzevashandisi. Imwe nzvimbo inogona kushandiswa ndeye mamuseum uye mashoo. Vashanyi vachakwanisa kuteerera hurukuro kubva kumagetsi emagetsi pasina kukanganisa vamwe. Ehe, isu hatigone kutadza kucherechedza nzvimbo yekushambadzira - zvinogoneka kuzivisa vashanyi vezvitoro nezve mamiriro ekusimudzirwa kwemunhu.

Asi mainjiniya achiri kufanira kugadzirisa akati wandei matambudziko - kusvika parizvino audio projekita inongokwanisa kushanda mune shoma frequency renji. Kunyanya, inongoridza zvinyorwa G (G) kusvika D (D) mune yechitatu uye yechinomwe octaves.

Vagari veHacker News zvakare maona matambudziko anogona kuitika emutemo. Kunyanya, zvichave zvakakosha kudzora kuti ndiani uye pasi pemamiriro api achakwanisa kugamuchira mameseji ekushambadzira ega. Zvikasadaro, mhirizhonga ichatanga munzvimbo dzezvitoro. Sekutaura kunoita vagadziri ve "audio projekta", iyi nyaya ichagadziriswa zvishoma nechiso chekuziva system. Icharatidza kuti munhu wacho abvuma kugamuchira zviziviso zvakadaro here kana kuti kwete.

Chero zvazvingava, hapasati pave nekutaura pamusoro pekushandiswa kunoshanda kwekombiyuta "mumunda".

Dzimwe nzira dzekufambisa inzwi rekutungamira

Mukutanga kwegore, mainjiniya kubva kuMIT vakagadzira tekinoroji yekufambisa inotungamira ruzha vachishandisa laser ine wavelength ye1900 nm. Hazvikuvadzi kune retina yemunhu. Inzwi rinofambiswa uchishandisa iyo inonzi photoacoustic effectapo mhute yemvura iri muchadenga inotora simba rechiedza. Nekuda kweizvozvo, kuwedzera kwenzvimbo yekumanikidza kunoitika pane imwe nzvimbo munzvimbo. Munhu anogona kuona kuzunguzika kwemhepo kunoguma ne“nzeve isina kupfeka”.

Nyanzvi dzeDhipatimendi reDziviriro reUS dziri kugadzira tekinoroji yakafanana. Vachishandisa femtosecond laser, vanogadzira bhora replasma mumhepo, uye vanokonzeresa kudengenyeka kwezwi mariri vachishandisa imwe nanolaser. Chokwadi, nenzira iyi unogona chete kuburitsa ruzha uye ruzha rusingafadzi, rwakafanana nekuchema kwesairini.

Parizvino, matekinoroji aya haana kusiya murabhoritari, asi analogues avo ari kutanga "kupinza" zvishandiso zvevashandisi. Gore rakapera, Noveto nechekare yakaunzwa mutauri wekuteerera anogadzira "virtual headphones" pamusoro pemunhu achishandisa masaisai e ultrasonic. Naizvozvo, kugamuchirwa kwakapararira kweinotungamira ruzha tekinoroji ingori nyaya yenguva.

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Source: www.habr.com