{"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\/gd\/what-is-magnetic-hysteresis\/","title":{"rendered":"D\u00e8 a th' ann am hysteresis magnetach"},"content":{"rendered":"<h2>M\u00ecneachadh air Hysteresis Magnetach<\/h2>\n<p>Tha hysteresis magnetach na dhualchas de stuthan ferromagnetic far a bheil freagairt magnetach na stuth chan e a-mh\u00e0in a\u2019 buntainn ri raon magnetach an-dr\u00e0sta ach cuideachd ri a dh\u2019fhalbh fhaighinn air raointean magnetach. Ann an s\u00ecmplidh, nuair a chuireas tu raon magnetach air stuthan mar iarann, bidh iad a\u2019 gabhail magnetachadh. Ach, nuair a bhios an raon magnetach ag atharrachadh no air a thoirt air falbh, chan eil na stuthan seo a\u2019 call an magnetachadh gu h-iomlan sa bhad. An \u00e0ite sin, tha cuimhne magnetach aig cuid dhiubh, a bhios a\u2019 toirt adhbhar do dh\u2019fhalbhadh ann an freagairt.<\/p>\n<p>Tha an gi\u00f9lan fliuch seo air a mh\u00ecneachadh le fisig na raointean magnetach\u2014raointean beaga taobh a-staigh na stuth far a bheil na mion-chinnidhean magnetach air an uidheamachadh. Nuair a th\u00e8id raon magnetach taobh a-muigh a chur an s\u00e0s, bidh na raointean seo a\u2019 f\u00e0s no a\u2019 leigeil s\u00ecos ach chan eil iad a\u2019 tilleadh gu na staidichean t\u00f9sail aca sa bhad nuair a bhios an raon ag atharrachadh. Tha seo a\u2019 cruthachadh ph\u00e0tran cuairteil ris an canar cuairt hysteresis magnetach.<\/p>\n<p>Tha an graph de chruinneachadh hysteresis a\u2019 riochdachadh gu grafaigeach mar a tha an magnetachadh (d\u00f9mhlachd sruth magnetach) de dh\u2019stuth ag atharrachadh ann an freagairt ri neart raon magnetach a chuir air (neart raon magnetach). Tha e a\u2019 nochdadh pr\u00ecomh sh\u00f2naichean leithid coercivity (freagairt ri magnetization) agus retentivity (f\u00e0iligeadh magnetach), cudromach airson tuigse agus dealbhadh innealan magnetach.<\/p>\n<h2>Mar a tha Hysteresis Magnetach ag obair<\/h2>\n<p><img decoding=\"async\" class=\"\" src=\"https:\/\/pub-36eea33d6f1540d281c285671ffb8664.r2.dev\/2025\/09\/18\/Magnetic_Hysteresis_Loop_Explanation_m7Jl41FaV.webp\" alt=\"M\u00ecneachadh Mu Loop Hysteresis Magnetach\" width=\"510\" height=\"449\" \/><\/p>\n<p>Tha hysteresis magnetach a\u2019 tachairt air sg\u00e0th d\u00f2igh anns a bhios stuthan magnetach a\u2019 freagairt nuair a chuireas tu magnetachadh agus an uairsin a\u2019 toirt air falbh e. Nuair a chuireas tu raon magnetach air, t\u00f2isichidh na raointean magnetach beaga, ris an canar raointean, a\u2019 s\u00ecor fh\u00e0s no a\u2019 leigeil s\u00ecos le raon sin. Tha an uidheamachadh seo a\u2019 cruthachadh magnetachadh. Ach, nuair a thogras tu no atharraich an raon magnetach, chan eil na raointean seo a\u2019 tilleadh gu na staidichean t\u00f9sail aca sa bhad. Tha an f\u00ecor dh\u00f2igh seo a\u2019 toirt adhbhar do bhuaidh hysteresis.<\/p>\n<p>Tha an graph hysteresis magnetach, no cuairt B-H, na ghrafaig a\u2019 sealltainn mar a tha d\u00f9mhlachd sruth magnetach (B) a\u2019 toirt atharrachadh le neart raon magnetach a chuir air (H). Tha p\u00e0irtean cudromach den chuairt seo a\u2019 gabhail a-steach:<\/p>\n<ul>\n<li><strong>D\u00f9bhlachd<\/strong>: An raon magnetach an aghaidh a dh\u2019fheumas a bhith ann gus an magnetachadh a thoirt air ais gu neoni. Tha seo a\u2019 sealltainn cho \u201cseasmhaichte\u201d sa tha an magnet mu bhith a\u2019 cumail a\u2019 magnetachd.<\/li>\n<li><strong>Retentivity (no remanence)<\/strong>: An \u00ecre de magnetachadh air fh\u00e0gail nuair a th\u00e8id an raon magnetach taobh a-muigh a thoirt air falbh. Tha seo a\u2019 sealltainn d\u00e8 cho m\u00f2r sa tha cuimhne magnetach aig an stuth.<\/li>\n<li><strong>S\u00e0rachadh magnetach<\/strong>: An magnetachadh as motha a dh\u2019fhaodadh stuth a ruighinn nuair a tha na raointean uile air an uidheamachadh gu h-iomlan.<\/li>\n<\/ul>\n<h2>Se\u00f2rsan de Stuthan Magnetach agus Anns na Feartan Hysteresis<\/h2>\n<p>Tha stuthan magnetach gu \u00ecre mh\u00f2r a\u2019 tuiteam ann an d\u00e0 roinn:\u00a0<strong>stuthan magnetach bog<\/strong>\u00a0agus\u00a0<strong>stuthan magnetach cruaidh<\/strong>. Tha gach se\u00f2rsa a\u2019 nochdadh gi\u00f9lan hysteresis eadar-dhealaichte, a tha a\u2019 toirt buaidh air an cleachdadh practaigeach.<\/p>\n<h3>Stuthan Magnetach Bog<\/h3>\n<ul>\n<li>Agus\u00a0<strong>cuairtean hysteresis teann<\/strong><\/li>\n<li>Coercivity \u00ecosal (furasta a\u2019 magnetachadh agus a\u2019 toirt air falbh)<\/li>\n<li>Retentivity \u00ecosal (chan eil iad a\u2019 cumail magnetachadh gu math)<\/li>\n<li>Freagarrach airson tagraidhean a dh\u2019 fheumas freagairt magnetach luath agus call l\u00f9tha as \u00ecsle<\/li>\n<\/ul>\n<p><strong>Eisimpleirean cumanta:<\/strong><\/p>\n<ul>\n<li>St\u00e0ilinn silicon<\/li>\n<li>Ferritean<\/li>\n<\/ul>\n<h3>Stuthan Magnetach Cruaidh<\/h3>\n<ul>\n<li>Seall\u00a0<strong>l\u00f9ban hysteresis farsaing<\/strong><\/li>\n<li>\u00c0rd coercivity (a' str\u00ec ri demagnetization)<\/li>\n<li>\u00c0rd ch\u00f9mhnantachd (a\u2019 cumail magnetachadh airson \u00f9ine mh\u00f2r)<\/li>\n<li>Air a chleachdadh far a bheil magnetachadh maireannach riatanach<\/li>\n<\/ul>\n<p><strong>Eisimpleirean cumanta:<\/strong><\/p>\n<ul>\n<li>Magnetan talmhainn tearc (mar neodymium agus samarium-cobalt)<\/li>\n<\/ul>\n<div class=\"table-responsive\">\n<table class=\"table\">\n<thead>\n<tr>\n<th>Seilbh<\/th>\n<th>Stuthan Magnetach Bog<\/th>\n<th>Stuthan Magnetach Cruaidh<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>D\u00f9bhlachd<\/td>\n<td>\u00ccosal<\/td>\n<td>\u00c0rd<\/td>\n<\/tr>\n<tr>\n<td>Cuimhneachadh<\/td>\n<td>\u00ccosal<\/td>\n<td>\u00c0rd<\/td>\n<\/tr>\n<tr>\n<td>L\u00f9b Hysteresis<\/td>\n<td>Teann<\/td>\n<td>Farsaing<\/td>\n<\/tr>\n<tr>\n<td>Call L\u00f9tha (Call Hysteresis)<\/td>\n<td>\u00ccosal<\/td>\n<td>Nas \u00e0irde<\/td>\n<\/tr>\n<tr>\n<td>Iarrtas<\/td>\n<td>Cruth-atharraichean, inductors<\/td>\n<td>Magnetan maireannach, motaran<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>Tha tuigse air na diofar seo a\u2019 cuideachadh le taghadh an stuth ceart st\u00e8idhichte air \u00e8ifeachdas, feumalachdan cuimhne magnetach, agus caitheamh l\u00f9tha\u2014gu s\u00f2nraichte cudromach air margaidh an R\u00ecoghachd Aonaichte airson gn\u00ecomhachasan mar cumhachd, dealan, agus carbadan.<\/p>\n<p>Airson barrachd mu mar a bhios stuthan magnetach ag obair, thoir s\u00f9il air seo\u00a0<span style=\"color: #ff6600;\"><strong><a style=\"color: #ff6600;\" href=\"https:\/\/nbaem.com\/gd\/soft-magnetic-materials-vs-hard-magnetic-materials\/\" target=\"_blank\" rel=\"noopener\">stuthan magnetach bog an aghaidh cruaidh<\/a><\/strong><\/span>\u00a0sti\u00f9ireadh.<\/p>\n<p>&nbsp;<\/p>\n<h2>Buaidh Hysteresis Magnetach ann an Stuthan Magnetach<\/h2>\n<p>Tha hysteresis magnetach a' cluich rola m\u00f2r ann an d\u00f2igh obrach stuthan magnetach, gu s\u00f2nraichte nuair a chleachdas iad ann an innealan l\u00e0itheil. Is e aon ch\u00f9is mh\u00f2r\u00a0<strong>call l\u00f9tha air sg\u00e0th hysteresis<\/strong>, ris an canar gu tric call hysteresis. Tha am milleadh seo a' tachairt oir nuair a bhios stuth magnetach mar chrois-gn\u00ecomh no cuibhle motair a' cuairteachadh tro magnetization agus demagnetization (tagraidhean AC), tha e a' call l\u00f9tha mar teas. Tha seo a' lughdachadh \u00e8ifeachdas agus faodaidh e cosgais obrachaidh a mheudachadh.<\/p>\n<p>Ann an croisean-gn\u00ecomh, inductoran, agus motaran dealain, tha call hysteresis a' cuingealachadh cho math sa tha an inneal a' tionndadh agus a' toirt seachad l\u00f9th dealain. Mar a tha an cuairt hysteresis nas soilleire, is ann as motha a bhios l\u00f9th a' call. Sin as coireach gu bheil e cudromach stuthan le coercivity \u00ecosal agus cuairtean hysteresis teann a thaghadh airson adhartachadh \u00e8ifeachdas an inneal.<\/p>\n<p>A bharrachd air tagraidhean cumhachd, tha hysteresis magnetach cudromach airson\u00a0<strong>innealan st\u00f2raidh magnetach agus sensors<\/strong>. Tha cuimhneachd \u2014 comas stuth magnetach a bhith a' cuimhneachadh a magnetization \u2014 a' d\u00e8anamh comasach st\u00f2ras d\u00e0ta ann an dr\u00e0ibhearan cruaidh no sensors seasmhach agus earbsach a chumail. Gun chothromachadh air feartan hysteresis smachdail, cha bhiodh na h-innealan seo ag obair gu cunbhalach no a' cumail fiosrachadh gu math.<\/p>\n<p>Tha tuigse agus sti\u00f9ireadh air hysteresis magnetach iuchair airson dealbhadh nas fhe\u00e0rr de ph\u00e0irtean magnetach \u00e8ifeachdach l\u00f9tha agus teicne\u00f2lasan d\u00e0ta earbsach.<\/p>\n<h2>Tagraidhean practaigeach de hysteresis magnetach<\/h2>\n<p>Tha hysteresis magnetach a' cluich rola chudromach ann am m\u00f2ran theicne\u00f2lasan practaigeach, gu s\u00f2nraichte ann an innleadaireachd dealain. Ann an croisean-gn\u00ecomh, motaran, agus gineadairean, tha smachd air hysteresis a' cuideachadh le bhith a' leasachadh \u00e8ifeachdas le l\u00f9ghdachadh call l\u00f9tha r\u00e8 cuairtean magnetization. Tha seo gu d\u00ecreach a' toirt buaidh air coileanadh agus beatha na h-innealan sin.<\/p>\n<p>Ann an st\u00f2ras d\u00e0ta, tha hysteresis magnetach na bhunait airson cl\u00e0radh magnetach. Tha innealan mar chruaidh-chruaidh a' toirt earbsa air stuthan a tha a' cumail suidheachaidhean magnetach (retentivity) airson d\u00e0ta a st\u00f2radh gu earbsach thar \u00f9ine. Tha na feartan hysteresis a' d\u00e8anamh cinnteach gu bheil an d\u00e0ta a' fuireach gun a bhith air a mhilleadh gus am bi e air a dh'atharrachadh gu rianail.<\/p>\n<p>Tha sensors agus switches magnetach cuideachd an urra ri hysteresis. Bidh na h-innealan seo a' cleachdadh buaidh cuimhne magnetach gus atharrachaidhean ann an raointean magnetach no siostaman smachd a lorg, st\u00e8idhichte air suidheachaidhean magnetach. Tha seo gan d\u00e8anamh riatanach ann an f\u00e8in-ghluasad agus siostaman s\u00e0bhailteachd.<\/p>\n<p>Mu dheireadh, tha hysteresis magnetach a' cuideachadh ann an d\u00econ magnetach agus s\u00ecoladh fuaim. Faodaidh stuthan le feartan hysteresis s\u00f2nraichte casg a chur no l\u00f9ghdachadh eadar-theachd magnetach nach eil ag iarraidh, a' d\u00econ electronics mothachail ann an innealan meidigeach, siostaman conaltraidh, agus uidheamachd gn\u00ecomhachais.<\/p>\n<h2>Tomhas agus Mion-sgr\u00f9dadh air hysteresis magnetach<\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/pub-36eea33d6f1540d281c285671ffb8664.r2.dev\/2025\/09\/18\/Magnetic_Hysteresis_Measurement_Techniques_AVzZz58.webp\" alt=\"D\u00f2ighean Meas Hysteresis Magnetach\" \/><\/p>\n<p>Gus tuigse agus optimachadh hysteresis magnetach a thuigsinn, tha sinn an urra ri innealan mionaideach a bhios a' tomhas cuairt hysteresis magnetach, ris an canar cuideachd an cuairt B-H. An d\u00e0 inneal as cumanta nan seo na h-<\/p>\n<ul>\n<li><strong>Magnetometer Samplachadh Bhriseadh (VSM):<\/strong>\u00a0Tomhas feartan magnetach le bhith a' briseadh an sampall ann an raon magnetach, a' lorg atharrachaidhean ann an magnetization.<\/li>\n<li><strong>Tracer Cuairt B-H:<\/strong>\u00a0A' leantainn d\u00ecreach a' chuairt hysteresis le tomhas l\u00e0nachd raon magnetach (H) an aghaidh tiugh sruth magnetach (B).<\/li>\n<\/ul>\n<p>Tha na h-innealan seo a' cuideachadh le bhith a' cruinneachadh paramadairean cudromach bho chuairt hysteresis:<\/p>\n<div class=\"table-responsive\">\n<table class=\"table\">\n<thead>\n<tr>\n<th>Paramadair<\/th>\n<th>An ciall a th\u2019 aig e<\/th>\n<th>Carson a tha e cudromach<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>D\u00f9bhlachd<\/td>\n<td>An raon a tha a dh\u00ecth gus magnetachadh a lughdachadh gu neoni<\/td>\n<td>A\u2019 sealltainn an aghaidh stuth ri d\u00ec-magnetachadh<\/td>\n<\/tr>\n<tr>\n<td>Cuimhneachadh<\/td>\n<td>Magnetachadh air fh\u00e0gail \u00e0s d\u00e8idh a\u2019 raon a thoirt air falbh<\/td>\n<td>A\u2019 comharrachadh cho math \u2018s a chuimhnicheas an stuth air an st\u00e0it magnetach<\/td>\n<\/tr>\n<tr>\n<td>Magnetachadh Saturation<\/td>\n<td>An magnetachadh as \u00e0irde as urrainn do stuth a ruighinn<\/td>\n<td>A\u2019 m\u00ecneachadh comas magnetach an stuth<\/td>\n<\/tr>\n<tr>\n<td>Call Hysteresis<\/td>\n<td>Raon taobh a-staigh a\u2019 chuairt a\u2019 riochdachadh l\u00f9th a chaill<\/td>\n<td>Cudromach airson \u00e8ifeachdas a mheasadh, gu s\u00f2nraichte ann an cleachdadh AC<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>Bidh luchd-saothrachaidh a\u2019 cleachdadh na tomhasan seo ann an smachd c\u00e0ileachd gus d\u00e8anamh cinnteach gu bheil stuthan a\u2019 coinneachadh ri inbhean s\u00f2nraichte airson coileanadh agus \u00e8ifeachdas. Tha cunbhalachd ann an feartan magnetach a\u2019 ciallachadh earbsachd nas fhe\u00e0rr ann an tionndaidhean, motaran, agus innealan st\u00f2raidh a thathas a\u2019 cleachdadh air margaidh an R\u00ecoghachd Aonaichte.<\/p>\n<h2>A\u2019 lughdachadh agus a\u2019 smachdachadh Call Hysteresis<\/h2>\n<p>Bidh lughdachadh call hysteresis a\u2019 t\u00f2iseachadh le bhith a\u2019 taghadh an se\u00f2rsa stuth magnetach ceart.\u00a0<strong>Stuthan magnetach bog<\/strong>\u00a0mar st\u00e0ilinn silicon no ferrites a tha le \u00ecre \u00ecosal de choinneamhachd, a\u2019 ciallachadh gu bheil iad a\u2019 magnetachadh agus a\u2019 d\u00ec-magnetachadh gu furasta le call l\u00f9th as \u00ecsle. Tha iad sin foirfe airson tionndaidhean agus inductors far a bheil atharrachaidhean magnetach luath a\u2019 tachairt. Air an l\u00e0imh eile,\u00a0<strong>stuthan magnetach cruaidh<\/strong>\u00a0le coinneamhachd \u00e0rd tha iad math nuair a tha thu ag iarraidh magnet maireannach ach gu h-iomlan tha call hysteresis nas \u00e0irde aca.<\/p>\n<p>Gus smachd a chumail air call hysteresis nas fhaide, bidh luchd-saothrachaidh gu tric a\u2019 cleachdadh l\u00e0imhseachaidhean mar:<\/p>\n<ul>\n<li><strong>Aonadh<\/strong>: A\u2019 teasachadh agus a\u2019 fuarachadh stuthan gu slaodach a\u2019 leigeil \u00e0s cuideam a-staigh, a\u2019 leasachadh feartan magnetach agus a\u2019 lughdachadh call l\u00f9th.<\/li>\n<li><strong>Al\u00f9m<\/strong>: A\u2019 cur eileamaidean mar al\u00f9manum, nicil, no cobalt a-steach gus gi\u00f9lan magnetach a shuidheachadh agus call hysteresis a lughdachadh.<\/li>\n<\/ul>\n<p>Mu dheireadh, tha dealbhadh glic a' cluich p\u00e0irt mh\u00f2r. Bidh innleadairean a' optimachadh cruthan innealan magnetach, meudan cridhe, agus r\u00e8iteachadh sn\u00e0ithleanan gus casg a chur air str\u00ec magnetach neo-iomchaidh agus sgudal l\u00f9th. Bidh cleachdadh cridheachan laminated no cridheachan p\u00f9dar cuideachd a' cuideachadh le bhith a' cuingealachadh sruthan eddy, a' cur ri oidhirpean l\u00f9ghdachadh call hysteresis.<\/p>\n<p>Bidh na ro-innleachdan uile c\u00f2mhla a' d\u00e8anamh nan eileamaidean magnetach nas \u00e8ifeachdaiche agus nas earbsaiche, a' buannachadh a h-uile c\u00e0il bho thrasdaran gu motaran dealain a thathas a' cleachdadh air feadh a' mhargaidh.<\/p>","protected":false},"excerpt":{"rendered":"<p>M\u00ecneachadh de Hysteresis Magnetach Tha hysteresis magnetach na chaochladh de stuthan ferromagnetic far am bi freagairt magnetach an stuth a\u2019 buntainn chan e a-mh\u00e0in ri raon magnetach an-dr\u00e0sta ach cuideachd ri a dh\u2019fhalbh deuchainn le raointean magnetach. Ann an teacsa s\u00ecmplidh, nuair a chuireas tu raon magnetach air stuthan mar iarann, bidh iad a\u2019 faighinn magnetachd. [...]<\/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,"_mi_skip_tracking":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1356","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"jetpack_featured_media_url":"https:\/\/nbaem.com\/wp-content\/uploads\/2024\/10\/magnetic-hysteresis.jpg","_links":{"self":[{"href":"https:\/\/nbaem.com\/gd\/wp-json\/wp\/v2\/posts\/1356","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nbaem.com\/gd\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nbaem.com\/gd\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nbaem.com\/gd\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nbaem.com\/gd\/wp-json\/wp\/v2\/comments?post=1356"}],"version-history":[{"count":4,"href":"https:\/\/nbaem.com\/gd\/wp-json\/wp\/v2\/posts\/1356\/revisions"}],"predecessor-version":[{"id":2890,"href":"https:\/\/nbaem.com\/gd\/wp-json\/wp\/v2\/posts\/1356\/revisions\/2890"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbaem.com\/gd\/wp-json\/wp\/v2\/media\/1354"}],"wp:attachment":[{"href":"https:\/\/nbaem.com\/gd\/wp-json\/wp\/v2\/media?parent=1356"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbaem.com\/gd\/wp-json\/wp\/v2\/categories?post=1356"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbaem.com\/gd\/wp-json\/wp\/v2\/tags?post=1356"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}