Musoro wekutora magetsi kubva ku "mhepo" - kubva kune electromagnetic ruzha, vibrations, mwenje, hunyoro uye zvimwe zvakawanda - inoshungurudza vese vaongorori vevanhu uye vavanoshanda navo muyunifomu. Kubatsira kwako kunyaya iyi kubva kuPennsylvania State University. Kubva kune magineti emagetsi emagetsi ari pedyo, vakakwanisa kubvisa magetsi nesimba remamilliwatts akawanda, izvo zvakakwana, semuenzaniso, kuisa simba re digital alarm.
Rakabudiswa mumagazini Muchinyorwa ichi, masayendisiti akataura nezve maverengero uye kugadzirwa kweakakosha anoshandura emagetsi emagetsi minda kuita magetsi. Chinhu chemigodhi chinogadzirwa muchimiro cheplate yakaonda yakawanda ine magineti asingagumi pamagumo emahara (imwe mugumo weplate yakachengetedzwa zvakachengeteka). Iyo ndiro pachayo ine piezoelectric layer uye layer ye zvinhu (Fe85B5Si10 Metglas).
Magnetostrictive zvinhu zvinonakidza nekuti kana mamiriro emagnetization achinja, huwandu hwayo uye mitsara mitsetse inoshanduka. Iyo inogumbura hum yemakoiri mumavhidhiyo makadhi ndeye, sekutonga, magnetostrictive shanduko mumacores. Munzvimbo yekuchinjanisa magineti yewaya dzemagetsi akajairwa ane frequency ye50 kana 60 Hz, ndiro yeMetglas inotanga kubvunda nekukanganisa piezoelectric plate yakanamwa pairi. Ikozvino inotanga kuyerera mumambure akabatanidzwa kune mahwendefa.
Nekudaro, iyo magnetostrictive material yakabatanidzwa nepiezoelectric inongoburitsa chete kusvika 16% yemagetsi anogadzirwa nechinhu. Icho chikuru chinobuda chinobva kuoscillation yegineti yechigarire mumunda wemagetsi. Zvinonzi peak voltage pane chinhu chinosvika 80 V mumunda we300 ΞΌT. Asi chinonyanya kukosha ndechekuti chinhu chakagadziridzwa chinogona kuburitsa simba rakakwana kuti rikwanise kugonesa wachi yedhijitari mumunda usingasviki 50 ΞΌT iri chinhambwe che 20 cm kubva kune waya yemagetsi.
Masayendisiti kubva kuPennsylvania State University vakaita tsvakiridzo yavo pamwe chete nevaongorori kubva kuVirginia Tech neboka kubva kuUS Army Combat Capabilities Development Command.
Source: 3dnews.ru