{"id":1356,"date":"2024-10-10T02:37:10","date_gmt":"2024-10-10T02:37:10","guid":{"rendered":"https:\/\/nbaem.com\/?p=1356"},"modified":"2025-09-18T04:11:52","modified_gmt":"2025-09-18T04:11:52","slug":"what-is-magnetic-hysteresis","status":"publish","type":"post","link":"https:\/\/nbaem.com\/sk\/what-is-magnetic-hysteresis\/","title":{"rendered":"\u010co je magnetick\u00e1 hystereza"},"content":{"rendered":"<h2>Defin\u00edcia magnetick\u00e9ho hyster\u00e9zy<\/h2>\n<p>magnetick\u00e1 hystereza je vlastnos\u0165 feromagnetick\u00fdch materi\u00e1lov, pri ktorej magnetick\u00e1 odpove\u010f materi\u00e1lu z\u00e1vis\u00ed nielen od moment\u00e1lneho magnetick\u00e9ho po\u013ea, ale aj od jeho predch\u00e1dzaj\u00faceho vystavenia magnetick\u00fdm po\u013eom. Jednoducho povedan\u00e9, ke\u010f na materi\u00e1ly ako \u017eelezo p\u00f4sob\u00edte magnetick\u00fdm po\u013eom, st\u00e1vaj\u00fa sa magnetizovan\u00fdmi. Av\u0161ak ke\u010f sa magnetick\u00e9 pole zmen\u00ed alebo odstr\u00e1ni, tieto materi\u00e1ly okam\u017eite nestr\u00e1caj\u00fa svoju magnetiz\u00e1ciu. Namiesto toho si udr\u017euj\u00fa ur\u010dit\u00fa magnetick\u00fa pam\u00e4\u0165, \u010do sp\u00f4sobuje me\u0161kanie v ich odozve.<\/p>\n<p>Toto oneskoren\u00e9 spr\u00e1vanie je vysvet\u013eovan\u00e9 fyzikou magnetick\u00fdch dom\u00e9n\u2014mal\u00fdch regi\u00f3nov vo vn\u00fatri materi\u00e1lu, kde s\u00fa magnetick\u00e9 momenty usporiadan\u00e9. Ke\u010f sa aplikuje vonkaj\u0161ie magnetick\u00e9 pole, tieto dom\u00e9ny rast\u00fa alebo klesaj\u00fa, ale po zmene po\u013ea sa okam\u017eite nevr\u00e1tia do p\u00f4vodn\u00e9ho stavu. To vytv\u00e1ra slu\u010dkov\u00fd vzor zn\u00e1my ako hyster\u00e9zna slu\u010dka.<\/p>\n<p>Hyster\u00e9zna slu\u010dka graficky predstavuje, ako sa magnetiz\u00e1cia (magnetick\u00e1 fluxov\u00e1 hustota) materi\u00e1lu men\u00ed v z\u00e1vislosti od sily aplikovan\u00e9ho magnetick\u00e9ho po\u013ea (magnetick\u00e1 indukcia). Odr\u00e1\u017ea k\u013e\u00fa\u010dov\u00e9 charakteristiky ako koercivita (odolnos\u0165 vo\u010di demagnetiz\u00e1cii) a retentivita (ost\u00e1vaj\u00faca magnetiz\u00e1cia), \u010do je d\u00f4le\u017eit\u00e9 pre pochopenie a navrhovanie magnetick\u00fdch zariaden\u00ed.<\/p>\n<h2>Ako funguje magnetick\u00e1 hystereza<\/h2>\n<p><img decoding=\"async\" class=\"\" src=\"https:\/\/pub-36eea33d6f1540d281c285671ffb8664.r2.dev\/2025\/09\/18\/Magnetic_Hysteresis_Loop_Explanation_m7Jl41FaV.webp\" alt=\"Vysvetlenie magnetick\u00e9ho hyster\u00e9zneho obl\u00faka\" width=\"510\" height=\"449\" \/><\/p>\n<p>Magnetick\u00e1 hystereza nast\u00e1va v\u010faka sp\u00f4sobu, ak\u00fdm magnetick\u00e9 materi\u00e1ly reaguj\u00fa, ke\u010f ich magnetizujete a potom demagnetizujete. Ke\u010f aplikujete magnetick\u00e9 pole, mal\u00e9 magnetick\u00e9 oblasti materi\u00e1lu, naz\u00fdvan\u00e9 dom\u00e9ny, za\u010dn\u00fa sa orientova\u0165 v s\u00falade s t\u00fdmto po\u013eom. T\u00e1to orient\u00e1cia je to, \u010do vytv\u00e1ra magnetiz\u00e1ciu. Ale ke\u010f pole odoberiete alebo zmen\u00edte smer po\u013ea, tieto dom\u00e9ny sa okam\u017eite nevr\u00e1tia do p\u00f4vodn\u00e9ho stavu. Toto me\u0161anie sp\u00f4sobuje hystezn\u00fa efekt.<\/p>\n<p>Hyster\u00e9zna slu\u010dka, alebo B-H krivka, je graf, ktor\u00fd ukazuje, ako sa men\u00ed magnetick\u00e1 fluxov\u00e1 hustota (B) v z\u00e1vislosti od sily aplikovan\u00e9ho magnetick\u00e9ho po\u013ea (H). D\u00f4le\u017eit\u00e9 \u010dasti tejto slu\u010dky zah\u0155\u0148aj\u00fa:<\/p>\n<ul>\n<li><strong>Koercivita<\/strong>: Obr\u00e1ten\u00e9 magnetick\u00e9 pole potrebn\u00e9 na n\u00e1vrat magnetiz\u00e1cie na nulu. Ukazuje, ako ve\u013emi je magnet \u201etvrdohlav\u00fd\u201c \u010do sa t\u00fdka udr\u017eiavania svojej magnetiz\u00e1cie.<\/li>\n<li><strong>Retentivita (alebo remanencia)<\/strong>: Mno\u017estvo zostatkovej magnetiz\u00e1cie po odstr\u00e1nen\u00ed vonkaj\u0161ieho magnetick\u00e9ho po\u013ea. To ur\u010duje, ko\u013eko magnetickej pam\u00e4te materi\u00e1l udr\u017eiava.<\/li>\n<li><strong>Satur\u00e1cia magnetiz\u00e1ciou<\/strong>: Maxim\u00e1lna magnetiz\u00e1cia, ktor\u00fa materi\u00e1l m\u00f4\u017ee dosiahnu\u0165, ke\u010f s\u00fa v\u0161etky dom\u00e9ny plne zos\u00faladen\u00e9.<\/li>\n<\/ul>\n<h2>Typy magnetick\u00fdch materi\u00e1lov a ich hyster\u00e9zne charakteristiky<\/h2>\n<p>Magnetick\u00e9 materi\u00e1ly sa prim\u00e1rne delia do dvoch kateg\u00f3ri\u00ed:\u00a0<strong>m\u00e4kk\u00e9 magnetick\u00e9 materi\u00e1ly<\/strong>\u00a0a\u00a0<strong>tvrd\u00e9 magnetick\u00e9 materi\u00e1ly<\/strong>. Ka\u017ed\u00fd typ ukazuje odli\u0161n\u00e9 hyster\u00e9zov\u00e9 spr\u00e1vanie, ktor\u00e9 ovplyv\u0148uje ich praktick\u00e9 vyu\u017eitie.<\/p>\n<h3>M\u00e4kk\u00e9 magnetick\u00e9 materi\u00e1ly<\/h3>\n<ul>\n<li>Ma\u0165\u00a0<strong>\u00fazke hyster\u00e9zov\u00e9 slu\u010dky<\/strong><\/li>\n<li>N\u00edzka koercitivita (\u013eahko magnetizova\u0165 a demagnetizova\u0165)<\/li>\n<li>N\u00edzka retencia (nedr\u017eia magnetiz\u00e1ciu dobre)<\/li>\n<li>Ide\u00e1lne pre aplik\u00e1cie vy\u017eaduj\u00face r\u00fdchlu magnetick\u00fa odozvu a minim\u00e1lnu energetick\u00fa stratu<\/li>\n<\/ul>\n<p><strong>Be\u017en\u00e9 pr\u00edklady:<\/strong><\/p>\n<ul>\n<li>Kovov\u00e9 ocele na b\u00e1ze krem\u00edka<\/li>\n<li>Ferrity<\/li>\n<\/ul>\n<h3>Tvrd\u00e9 magnetick\u00e9 materi\u00e1ly<\/h3>\n<ul>\n<li>Zobrazi\u0165\u00a0<strong>\u0161irok\u00e9 hyster\u00e9zov\u00e9 slu\u010dky<\/strong><\/li>\n<li>Vysok\u00e1 koercitivita (odol\u00e1va demagnetiz\u00e1cii)<\/li>\n<li>Vysok\u00e1 retencia (dr\u017eia magnetiz\u00e1ciu dlh\u0161\u00ed \u010das)<\/li>\n<li>Pou\u017e\u00edva sa tam, kde je potrebn\u00e1 trval\u00e1 magnetiz\u00e1cia<\/li>\n<\/ul>\n<p><strong>Be\u017en\u00e9 pr\u00edklady:<\/strong><\/p>\n<ul>\n<li>Zriedkav\u00e9 zemn\u00e9 magnety (ako neod\u00fdm a sam\u00e1rium-kobalt)<\/li>\n<\/ul>\n<div class=\"table-responsive\">\n<table class=\"table\">\n<thead>\n<tr>\n<th>Vlastnos\u0165<\/th>\n<th>M\u00e4kk\u00e9 magnetick\u00e9 materi\u00e1ly<\/th>\n<th>Tvrd\u00e9 magnetick\u00e9 materi\u00e1ly<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Koercivita<\/td>\n<td>N\u00edzky<\/td>\n<td>Vysok\u00e1<\/td>\n<\/tr>\n<tr>\n<td>Retencia<\/td>\n<td>N\u00edzky<\/td>\n<td>Vysok\u00e1<\/td>\n<\/tr>\n<tr>\n<td>Hyster\u00e9zny slu\u010dkov\u00fd graf<\/td>\n<td>\u00dazke<\/td>\n<td>\u0160irok\u00e9<\/td>\n<\/tr>\n<tr>\n<td>Energetick\u00e9 straty (straty hysterezou)<\/td>\n<td>N\u00edzky<\/td>\n<td>Vy\u0161\u0161ie<\/td>\n<\/tr>\n<tr>\n<td>Aplik\u00e1cia<\/td>\n<td>Transformatory, induktory<\/td>\n<td>Permanentn\u00e9 magnety, motory<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>Pochopenie t\u00fdchto rozdielov pom\u00e1ha vybra\u0165 spr\u00e1vny materi\u00e1l na z\u00e1klade efekt\u00edvnosti, potrebnej magnetickej pam\u00e4te a spotreby energie\u2014obzvl\u00e1\u0161\u0165 kritick\u00e9 na trhu Slovenska pre odvetvia ako v\u00fdkon, elektronika a automobilov\u00fd priemysel.<\/p>\n<p>Pre viac inform\u00e1ci\u00ed o tom, ako funguj\u00fa magnetick\u00e9 materi\u00e1ly, pozrite si toto\u00a0<span style=\"color: #ff6600;\"><strong><a style=\"color: #ff6600;\" href=\"https:\/\/nbaem.com\/sk\/soft-magnetic-materials-vs-hard-magnetic-materials\/\" target=\"_blank\" rel=\"noopener\">m\u00e4kk\u00e9 vs tvrd\u00e9 magnetick\u00e9 materi\u00e1ly<\/a><\/strong><\/span>\u00a0sprievodca.<\/p>\n<p>&nbsp;<\/p>\n<h2>V\u00fdznam magnetickej hystereznej zmeny v magnetick\u00fdch materi\u00e1loch<\/h2>\n<p>Magnetick\u00e1 hysterezia zohr\u00e1va ve\u013ek\u00fa \u00falohu v v\u00fdkone magnetick\u00fdch materi\u00e1lov, najm\u00e4 ke\u010f s\u00fa pou\u017e\u00edvan\u00e9 v be\u017en\u00fdch zariadeniach. Jednou z hlavn\u00fdch ot\u00e1zok je\u00a0<strong>energetick\u00e9 straty sp\u00f4soben\u00e9 hysterezou<\/strong>, \u010dasto naz\u00fdvan\u00e1 hyster\u00e9znou str\u00e1tou. T\u00e1to strata sa vyskytuje, ke\u010f magnetick\u00fd materi\u00e1l, ako napr\u00edklad jadro transform\u00e1tora alebo vinutie motora, cykluje magnetiz\u00e1ciu a demagnetiz\u00e1ciu (AC aplik\u00e1cie), bir\u00ed energiu ako teplo. To zni\u017euje \u00fa\u010dinnos\u0165 a m\u00f4\u017ee zv\u00fd\u0161i\u0165 prev\u00e1dzkov\u00e9 n\u00e1klady.<\/p>\n<p>Pri transform\u00e1toroch, induktoroch a elektrick\u00fdch motoroch obmedzuje hyster\u00e9zna strata, ako dobre zariadenie premie\u0148a a pren\u00e1\u0161a elektrick\u00fa energiu. \u010c\u00edm v\u00fdraznej\u0161ia je hysterezov\u00e1 slu\u010dka, t\u00fdm viac energie sa str\u00e1ca. Preto je d\u00f4le\u017eit\u00e9 vybera\u0165 materi\u00e1ly s n\u00edzkou koerc\u00edvnos\u0165ou a \u00fazkymi hyster\u00e9zov\u00fdmi slu\u010dkami na zlep\u0161enie \u00fa\u010dinnosti zariadenia.<\/p>\n<p>Okrem energetick\u00fdch aplik\u00e1ci\u00ed je magnetick\u00e1 hystereza k\u013e\u00fa\u010dov\u00e1 pre\u00a0<strong>magnetick\u00e9 \u00falo\u017en\u00e9 zariadenia a senzory<\/strong>. Retentivita\u2014schopnos\u0165 magnetick\u00e9ho materi\u00e1lu zapam\u00e4ta\u0165 si svoju magnetiz\u00e1ciu\u2014umo\u017e\u0148uje ulo\u017ei\u0165 d\u00e1ta na pevn\u00e9 disky alebo udr\u017ea\u0165 senzory stabiln\u00e9 a spo\u013eahliv\u00e9. Bez riaden\u00fdch hyster\u00e9znych vlastnost\u00ed by tieto zariadenia nefungovali predv\u00eddate\u013ene alebo by si dobro vychovali inform\u00e1cie.<\/p>\n<p>Pochopenie a riadenie magnetickej hysterezy je k\u013e\u00fa\u010dov\u00e9 pre navrhovanie lep\u0161\u00edch, energeticky \u00fasporn\u00fdch magnetick\u00fdch komponentov a spo\u013eahliv\u00fdch d\u00e1tov\u00fdch technol\u00f3gi\u00ed.<\/p>\n<h2>Praktick\u00e9 aplik\u00e1cie magnetickej hysterezie<\/h2>\n<p>Magnetick\u00e1 hystereza zohr\u00e1va k\u013e\u00fa\u010dov\u00fa \u00falohu v mnoh\u00fdch praktick\u00fdch technol\u00f3gi\u00e1ch, najm\u00e4 v elektrotechnike. V transform\u00e1toroch, motoroch a gener\u00e1toroch pom\u00e1ha kontrola hysterezou zlep\u0161ova\u0165 \u00fa\u010dinnos\u0165 zni\u017eovan\u00edm str\u00e1t energie po\u010das cyklov magnetiz\u00e1cie. To priamo ovplyv\u0148uje v\u00fdkon a \u017eivotnos\u0165 t\u00fdchto strojov.<\/p>\n<p>V d\u00e1tov\u00fdch \u00falo\u017eisk\u00e1ch je magnetick\u00e1 hystereza z\u00e1kladom magnetick\u00e9ho z\u00e1znamu. Zariadenia ako pevn\u00e9 disky spo\u013eahlivo ukladaj\u00fa d\u00e1ta v\u010faka materi\u00e1lom, ktor\u00e9 si uchov\u00e1vaj\u00fa magnetick\u00e9 stavy (retentivita). Hyster\u00e9zne vlastnosti zais\u0165uj\u00fa, \u017ee d\u00e1ta zostan\u00fa neporu\u0161en\u00e9 do okamihu zmeny.<\/p>\n<p>Magnetick\u00e9 senzory a sp\u00edna\u010de tie\u017e z\u00e1visia od hystereznej slu\u010dky. Tieto zariadenia vyu\u017e\u00edvaj\u00fa magnetick\u00fd pam\u00e4\u0165ov\u00fd efekt na detekciu zmien v magnetick\u00fdch poliach alebo na riadenie obvodov na z\u00e1klade magnetick\u00fdch stavov. Rob\u00ed ich nevyhnutn\u00fdmi v automatiz\u00e1cii a bezpe\u010dnostn\u00fdch syst\u00e9moch.<\/p>\n<p>Napokon, magnetick\u00e1 hystereza pom\u00e1ha pri magnetickom tienen\u00ed a filtr\u00e1cii \u0161umu. Materi\u00e1ly so \u0161pecifick\u00fdmi hysterezn\u00fdmi charakteristikami m\u00f4\u017eu blokova\u0165 alebo zni\u017eova\u0165 ne\u017eiaduci magnetick\u00fd ru\u0161iv\u00fd vplyv, chr\u00e1niac citliv\u00fa elektroniku v lek\u00e1rskych zariadeniach, komunika\u010dn\u00fdch syst\u00e9moch a priemyselnom vybaven\u00ed.<\/p>\n<h2>Meranie a anal\u00fdza magnetickej hysterezie<\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/pub-36eea33d6f1540d281c285671ffb8664.r2.dev\/2025\/09\/18\/Magnetic_Hysteresis_Measurement_Techniques_AVzZz58.webp\" alt=\"Meranie magnetickej hyster\u00e9zie a techniky\" \/><\/p>\n<p>Na pochopenie a optimaliz\u00e1ciu magnetickej hystereznej slu\u010dky pou\u017e\u00edvame presn\u00e9 pr\u00edstroje, ktor\u00e9 meraj\u00fa magnetick\u00fa hysterezn\u00fa slu\u010dku, tie\u017e naz\u00fdvan\u00fa B-H krivka. Dve najbe\u017enej\u0161ie pom\u00f4cky s\u00fa:<\/p>\n<ul>\n<li><strong>Vibrata\u010dn\u00fd magnetometer vzorky (VSM):<\/strong>\u00a0Meria magnetick\u00e9 vlastnosti vibr\u00e1ciou vzorky v magnetickom poli, deteguj\u00fac zmeny magnetiz\u00e1cie.<\/li>\n<li><strong>Tracer slu\u010dky B-H:<\/strong>\u00a0Priamy z\u00e1znam slu\u010dky hyster\u00e9zy meran\u00edm intenzity magnetick\u00e9ho po\u013ea (H) oproti magnetickej indukcii (B).<\/li>\n<\/ul>\n<p>Tieto n\u00e1stroje pom\u00e1haj\u00fa z\u00edska\u0165 k\u013e\u00fa\u010dov\u00e9 parametre zo slu\u010dky hyster\u00e9zy:<\/p>\n<div class=\"table-responsive\">\n<table class=\"table\">\n<thead>\n<tr>\n<th>Parameter<\/th>\n<th>\u010co to znamen\u00e1<\/th>\n<th>Pre\u010do na tom z\u00e1le\u017e\u00ed<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Koercivita<\/td>\n<td>Pole potrebn\u00fd na zn\u00ed\u017eenie magnetiz\u00e1cie na nulu<\/td>\n<td>Ukazuje odolnos\u0165 materi\u00e1lu vo\u010di demagnetiz\u00e1cii<\/td>\n<\/tr>\n<tr>\n<td>Retencia<\/td>\n<td>Rezidu\u00e1lna magnetiz\u00e1cia po odstr\u00e1nen\u00ed po\u013ea<\/td>\n<td>Nazna\u010duje, ako dobre si materi\u00e1l pam\u00e4t\u00e1 magnetick\u00fd stav<\/td>\n<\/tr>\n<tr>\n<td>Satur\u00e1cia magnetiz\u00e1cie<\/td>\n<td>Najvy\u0161\u0161ia magnetiz\u00e1cia, ktor\u00fa m\u00f4\u017ee materi\u00e1l dosiahnu\u0165<\/td>\n<td>Definuje magnetick\u00fa kapacitu materi\u00e1lu<\/td>\n<\/tr>\n<tr>\n<td>Hyster\u00e9zna strata<\/td>\n<td>Priestor vo vn\u00fatri slu\u010dky predstavuj\u00faci stratu energie<\/td>\n<td>Kritick\u00e9 pre hodnotenie \u00fa\u010dinnosti, najm\u00e4 pri AC pou\u017eit\u00ed<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>V\u00fdrobcovia pou\u017e\u00edvaj\u00fa tieto merania v kvalite na zaistenie, \u017ee materi\u00e1ly sp\u013a\u0148aj\u00fa konkr\u00e9tne \u0161tandardy v\u00fdkonu a \u00fa\u010dinnosti. Konzistencia magnetick\u00fdch vlastnost\u00ed znamen\u00e1 lep\u0161iu spo\u013eahlivos\u0165 v transform\u00e1toroch, motoroch a \u00falo\u017en\u00fdch zariadeniach pou\u017e\u00edvan\u00fdch na trhu Slovakia.<\/p>\n<h2>Minimaliz\u00e1cia a riadenie hyster\u00e9znej straty<\/h2>\n<p>Zni\u017eovanie hyster\u00e9znej straty za\u010d\u00edna v\u00fdberom spr\u00e1vneho typu magnetick\u00e9ho materi\u00e1lu.\u00a0<strong>M\u00e4kk\u00e9 magnetick\u00e9 materi\u00e1ly<\/strong>\u00a0ako krem\u00edkov\u00e9 oce\u013ei alebo ferrity maj\u00fa n\u00edzku koercivitu, \u010do znamen\u00e1, \u017ee magnetizuj\u00fa a demagnetizuj\u00fa \u013eahko s minim\u00e1lnou stratou energie. Tieto s\u00fa ide\u00e1lne pre transform\u00e1tory a inductory, kde doch\u00e1dza k r\u00fdchlym zmen\u00e1m magnetick\u00fdch javov. Na druhej strane,\u00a0<strong>tvrd\u00e9 magnetick\u00e9 materi\u00e1ly<\/strong>\u00a0s vysokou koercivitou s\u00fa skvel\u00e9, ke\u010f chcete trval\u00fd magnet, no v\u0161eobecne maj\u00fa vy\u0161\u0161ie straty hyster\u00e9zy.<\/p>\n<p>Na \u010fal\u0161iu kontrolu str\u00e1t hyster\u00e9zy v\u00fdrobcovia \u010dasto pou\u017e\u00edvaj\u00fa \u00fapravy ako:<\/p>\n<ul>\n<li><strong>Annealovanie<\/strong>: Zohriatie a pomal\u00e9 chladenie materi\u00e1lov uvo\u013e\u0148uje vn\u00fatorn\u00e9 nap\u00e4tie, zlep\u0161uje magnetick\u00e9 vlastnosti a zni\u017euje stratu energie.<\/li>\n<li><strong>Slitinovanie<\/strong>: Prid\u00e1vanie prvkov ako hlin\u00edk, nikl alebo kobalt pom\u00e1ha prisp\u00f4sobi\u0165 magnetick\u00e9 spr\u00e1vanie a zni\u017eova\u0165 hyster\u00e9ziu.<\/li>\n<\/ul>\n<p>Nakoniec, \u0161ikovn\u00fd n\u00e1vrh zohr\u00e1va ve\u013ek\u00fa rolu. In\u017einieri optimalizuj\u00fa tvary magnetick\u00fdch zariaden\u00ed, ve\u013ekosti jadier a zapletac\u00ed konfigur\u00e1cie na minimaliz\u00e1ciu zbyto\u010dn\u00e9ho magnetick\u00e9ho odporu a plytvania energiou. Pou\u017e\u00edvanie laminovan\u00fdch jadier alebo pr\u00e1\u0161kov\u00fdch jadier tie\u017e pom\u00e1ha obmedzi\u0165 v\u00edrov\u00e9 pr\u00fady, \u010do dop\u013a\u0148a \u00fasilie o zni\u017eovanie str\u00e1t hyster\u00e9zie.<\/p>\n<p>V\u0161etky tieto strat\u00e9gie spolu robia magnetick\u00e9 komponenty efekt\u00edvnej\u0161\u00edmi a spo\u013eahlivej\u0161\u00edmi, \u010do prospeje v\u0161etk\u00e9mu od transform\u00e1torov po elektrick\u00e9 motory pou\u017e\u00edvan\u00e9 na trhu.<\/p>","protected":false},"excerpt":{"rendered":"<p>Definition of Magnetic Hysteresis Magnetic hysteresis is a property of ferromagnetic materials where the material\u2019s magnetic response depends not only on the current magnetic field but also on its past exposure to magnetic fields. In simple terms, when you apply a magnetic field to materials like iron, they become magnetized. [...]<\/p>","protected":false},"author":1,"featured_media":1354,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1356","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/nbaem.com\/wp-content\/uploads\/2024\/10\/magnetic-hysteresis.jpg","_links":{"self":[{"href":"https:\/\/nbaem.com\/sk\/wp-json\/wp\/v2\/posts\/1356","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nbaem.com\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nbaem.com\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nbaem.com\/sk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nbaem.com\/sk\/wp-json\/wp\/v2\/comments?post=1356"}],"version-history":[{"count":4,"href":"https:\/\/nbaem.com\/sk\/wp-json\/wp\/v2\/posts\/1356\/revisions"}],"predecessor-version":[{"id":2890,"href":"https:\/\/nbaem.com\/sk\/wp-json\/wp\/v2\/posts\/1356\/revisions\/2890"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbaem.com\/sk\/wp-json\/wp\/v2\/media\/1354"}],"wp:attachment":[{"href":"https:\/\/nbaem.com\/sk\/wp-json\/wp\/v2\/media?parent=1356"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbaem.com\/sk\/wp-json\/wp\/v2\/categories?post=1356"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbaem.com\/sk\/wp-json\/wp\/v2\/tags?post=1356"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}