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為什么工控主板的價格比商用主板高?
2017-05-25 13:45:35 新聞來源:草莓視頻污片下載:深圳市澤創偉業科技有限公司
為什(shen)么工控主板(ban)的(de)價格比商用(yong)主板(ban)高?相信(xin)很(hen)多用(yong)戶朋(peng)友都有這個疑問,下面澤創(chuang)偉(wei)業小編就來給大家(jia)分析(xi)下。
一、保護功能
商用主板沒有提供的(de)任何的(de)保護功(gong)能(neng);
工控主板通(tong)過特殊設(she)計,在遇到死機等異常情況,可(ke)以實現看(kan)門狗自動(dong)重(zhong)新啟動(dong)、防浪涌(yong)沖(chong)擊等功能,全力的(de)保證系(xi)統在惡劣環(huan)境的(de)高穩定性(xing)的(de)要求(qiu)。
二、工作溫度與散熱方式
商(shang)用主(zhu)板基本只能在5℃~38℃之間的環(huan)境溫度(du)中使用,對機構(gou)的散熱要求低,講究外觀夠炫夠酷。
工(gong)控(kong)主(zhu)板(ban)可以在(zai)-20℃~60℃之間的(de)環境(jing)中(zhong)穩定(ding)、無故障的(de)工(gong)作,甚至(zhi)(zhi)某(mou)些工(gong)業主(zhu)板(ban)采用特殊的(de)寬溫(wen)設計,溫(wen)度(du)范圍可達-20度(du)~70度(du)。這對(dui)機構(gou)的(de)散(san)熱(re)(re)(re)方案,散(san)熱(re)(re)(re)效率(lv)都是一個嚴(yan)峻的(de)考驗。在(zai)工(gong)控(kong)主(zhu)板(ban)機構(gou)的(de)散(san)熱(re)(re)(re)設計上,必須(xu)使用的(de)特殊散(san)熱(re)(re)(re)設計,甚至(zhi)(zhi)還采用全鋁制的(de)機構(gou)外殼(ke),而且(qie)對(dui)CPU、南北橋和硬(ying)盤等發熱(re)(re)(re)大(da)戶,進行(xing)特殊處(chu)理,保證工(gong)控(kong)主(zhu)板(ban)和整機的(de)正常運行(xing)。
很(hen)(hen)多(duo)工控機由(you)于在惡劣的(de)(de)(de)(de)應用(yong)環境(jing)(jing)下(例如潮濕、振動、多(duo)塵(chen)、輻射(she)、高溫等等應用(yong)環境(jing)(jing))使(shi)用(yong),空氣(qi)中的(de)(de)(de)(de)塵(chen)埃(ai)和鹽分(fen),都會對主板造(zao)成腐蝕,影響主板的(de)(de)(de)(de)正常使(shi)用(yong),因此(ci)很(hen)(hen)多(duo)工控機有必要(yao)(yao)采用(yong)無風扇的(de)(de)(de)(de)機箱(xiang)結構,防(fang)止(zhi)惡劣環境(jing)(jing)對系統造(zao)成傷害。但(dan)是全密封(feng)無風扇的(de)(de)(de)(de)結構,因為熱源的(de)(de)(de)(de)互相干擾,對主板的(de)(de)(de)(de)性(xing)能(neng)和穩定性(xing)的(de)(de)(de)(de)要(yao)(yao)求比較高,對機構的(de)(de)(de)(de)散熱方(fang)式和散熱效能(neng)的(de)(de)(de)(de)要(yao)(yao)求很(hen)(hen)高,務必要(yao)(yao)將積熱有效散發(fa)出去。
三、使用環境
工控主板常在惡劣環境下工作(壽命期內永久開機、氣候惡劣、潮濕、振動、多塵、輻射、高溫等等),而這些環境下是商用主板無法勝任,當今商業主板大部分只能運行在安定的環境下(工作時間短、室內、常溫等等)。
四、主板元器件的用料與設計:
商用主板:
商用(yong)(yong)主板(ban)(ban)由(you)于(yu)其更(geng)新換代的(de)(de)(de)(de)速(su)度比較(jiao)快,且對產(chan)品(pin)(pin)的(de)(de)(de)(de)穩(wen)定性及使(shi)用(yong)(yong)環境的(de)(de)(de)(de)要求比較(jiao)低(di),故此追求的(de)(de)(de)(de)是(shi)產(chan)品(pin)(pin)的(de)(de)(de)(de)時效(xiao)性,以及本身產(chan)品(pin)(pin)的(de)(de)(de)(de)市(shi)場定位(wei),對元(yuan)器件選擇要求上一般只需(xu)滿足系統運行(xing)2到3年(nian)的(de)(de)(de)(de)使(shi)用(yong)(yong)壽命即(ji)可(ke)(ke)(3年(nian)之后大部(bu)分(fen)已經(jing)更(geng)新換代了),元(yuan)器件的(de)(de)(de)(de)用(yong)(yong)料上使(shi)用(yong)(yong)普通級別的(de)(de)(de)(de)就可(ke)(ke)以了。例如(ru)電容,商用(yong)(yong)主板(ban)(ban)都是(shi)大量使(shi)用(yong)(yong)普通的(de)(de)(de)(de)電解電容,一是(shi)出于(yu)商用(yong)(yong)市(shi)場產(chan)品(pin)(pin)的(de)(de)(de)(de)使(shi)用(yong)(yong)考慮,二是(shi)為降(jiang)低(di)主板(ban)(ban)的(de)(de)(de)(de)成(cheng)本考慮。
工(gong)控主板:
1)工控主板的元器(qi)件
工控(kong)主(zhu)板選(xuan)料會(hui)選(xuan)用(yong)(yong)經過(guo)長時間(jian),高要求驗證元器(qi)(qi)件(jian),用(yong)(yong)以保(bao)證產(chan)品在惡(e)劣條件(jian)下(xia)高可靠性要求。例如工控(kong)主(zhu)板的元器(qi)(qi)件(jian)需要適(shi)應寬溫環境(-20℃~60℃),如固態(tai)電容器(qi)(qi),保(bao)證在惡(e)劣環境下(xia)(壽命(ming)期內(nei)永久開機、氣候惡(e)劣、潮濕、振動(dong)、多塵(chen)、輻射、高溫等(deng)等(deng))正常(chang)工作(zuo);主(zhu)板元器(qi)(qi)件(jian)需要耐(nai)高溫、抗潮濕等(deng)等(deng)。
2)工控主板的電容(rong)
工控(kong)主(zhu)(zhu)板(ban)(ban)采(cai)用(yong)(yong)的(de)(de)(de)(de)(de)(de)是高(gao)質(zhi)量的(de)(de)(de)(de)(de)(de)貼片(pian)式(shi)的(de)(de)(de)(de)(de)(de)固(gu)態電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)、鉭(tan)(tan)、陶瓷電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong),即使(shi)使(shi)用(yong)(yong)的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong),對(dui)其品質(zhi)、性能及(ji)壽命要求也(ye)遠高(gao)于商用(yong)(yong)產(chan)品,現在的(de)(de)(de)(de)(de)(de)工控(kong)主(zhu)(zhu)板(ban)(ban)都基(ji)本(ben)上(shang)采(cai)用(yong)(yong)固(gu)態電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong),特別中(zhong)高(gao)端的(de)(de)(de)(de)(de)(de)工控(kong)主(zhu)(zhu)板(ban)(ban)。商用(yong)(yong)主(zhu)(zhu)板(ban)(ban)基(ji)本(ben)都是大量采(cai)用(yong)(yong)針腳(jiao)式(shi)的(de)(de)(de)(de)(de)(de)大電(dian)(dian)(dian)(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong),因為大電(dian)(dian)(dian)(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)成(cheng)本(ben)低、容(rong)(rong)(rong)(rong)值(zhi)大一個可以頂多個貼片(pian)或坦(tan)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)。從性質(zhi)來說,電(dian)(dian)(dian)(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)穩(wen)定性不(bu)及(ji)鉭(tan)(tan)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)、陶瓷電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)高(gao),壽命不(bu)及(ji)它(ta)們長,耐高(gao)溫程度不(bu)及(ji)它(ta)們好(hao)。貼片(pian)式(shi)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)比(bi)針腳(jiao)式(shi)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)更(geng)加穩(wen)定。從價格(ge)(ge)上(shang),鉭(tan)(tan)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)比(bi)普(pu)通的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)要貴(gui),且由于鉭(tan)(tan)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)量較(jiao)小,使(shi)用(yong)(yong)在主(zhu)(zhu)板(ban)(ban)上(shang)時,需要使(shi)用(yong)(yong)更(geng)多數量的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong),單單鉭(tan)(tan)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)的(de)(de)(de)(de)(de)(de)成(cheng)本(ben)就是電(dian)(dian)(dian)(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)的(de)(de)(de)(de)(de)(de)幾十倍,這也(ye)是導致(zhi)工控(kong)主(zhu)(zhu)板(ban)(ban)比(bi)商用(yong)(yong)主(zhu)(zhu)板(ban)(ban)成(cheng)本(ben)價格(ge)(ge)高(gao)的(de)(de)(de)(de)(de)(de)原因之一。隨著國產(chan)固(gu)態電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)器(qi)廠家越(yue)來越(yue)多,固(gu)態電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)器(qi)的(de)(de)(de)(de)(de)(de)價格(ge)(ge)的(de)(de)(de)(de)(de)(de)下(xia)降(jiang),現在的(de)(de)(de)(de)(de)(de)高(gao)檔次的(de)(de)(de)(de)(de)(de)商用(yong)(yong)主(zhu)(zhu)板(ban)(ban)都在使(shi)用(yong)(yong)固(gu)態電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)器(qi)。
3)工控主板的PCB
商用(yong)主(zhu)板采用(yong)的(de)(de)是(shi)4層(ceng)(ceng)PCB設(she)計,一般的(de)(de)PCB線(xian)路板分有四層(ceng)(ceng),最(zui)(zui)上和最(zui)(zui)下的(de)(de)兩(liang)(liang)層(ceng)(ceng)是(shi)信號層(ceng)(ceng),中(zhong)間(jian)兩(liang)(liang)層(ceng)(ceng)是(shi)接(jie)地(di)層(ceng)(ceng)和電(dian)源層(ceng)(ceng),將接(jie)地(di)和電(dian)源層(ceng)(ceng)放(fang)在中(zhong)間(jian)。工業主(zhu)板采用(yong)的(de)(de)是(shi)6層(ceng)(ceng)以上PCB線(xian)路板設(she)計,其設(she)計是(shi)為了加(jia)強(qiang)主(zhu)板的(de)(de)抗電(dian)磁干擾、電(dian)磁兼(jian)容能力,增強(qiang)主(zhu)板的(de)(de)穩定(ding)性(xing)等(deng)等(deng)。
4)工控主板的壽命
與商用主(zhu)板2到3年使(shi)用壽(shou)命不同,大多數(shu)的(de)工控(kong)主(zhu)板壽(shou)命要求在3年以上,部(bu)分高品質的(de)工控(kong)主(zhu)板,使(shi)用壽(shou)命甚至達(da)到5—7年。
一、保護功能
商用主板沒有提供的(de)任何的(de)保護功(gong)能(neng);
工控主板通(tong)過特殊設(she)計,在遇到死機等異常情況,可(ke)以實現看(kan)門狗自動(dong)重(zhong)新啟動(dong)、防浪涌(yong)沖(chong)擊等功能,全力的(de)保證系(xi)統在惡劣環(huan)境的(de)高穩定性(xing)的(de)要求(qiu)。
二、工作溫度與散熱方式
商(shang)用主(zhu)板基本只能在5℃~38℃之間的環(huan)境溫度(du)中使用,對機構(gou)的散熱要求低,講究外觀夠炫夠酷。
工(gong)控(kong)主(zhu)板(ban)可以在(zai)-20℃~60℃之間的(de)環境(jing)中(zhong)穩定(ding)、無故障的(de)工(gong)作,甚至(zhi)(zhi)某(mou)些工(gong)業主(zhu)板(ban)采用特殊的(de)寬溫(wen)設計,溫(wen)度(du)范圍可達-20度(du)~70度(du)。這對(dui)機構(gou)的(de)散(san)熱(re)(re)(re)方案,散(san)熱(re)(re)(re)效率(lv)都是一個嚴(yan)峻的(de)考驗。在(zai)工(gong)控(kong)主(zhu)板(ban)機構(gou)的(de)散(san)熱(re)(re)(re)設計上,必須(xu)使用的(de)特殊散(san)熱(re)(re)(re)設計,甚至(zhi)(zhi)還采用全鋁制的(de)機構(gou)外殼(ke),而且(qie)對(dui)CPU、南北橋和硬(ying)盤等發熱(re)(re)(re)大(da)戶,進行(xing)特殊處(chu)理,保證工(gong)控(kong)主(zhu)板(ban)和整機的(de)正常運行(xing)。
很(hen)(hen)多(duo)工控機由(you)于在惡劣的(de)(de)(de)(de)應用(yong)環境(jing)(jing)下(例如潮濕、振動、多(duo)塵(chen)、輻射(she)、高溫等等應用(yong)環境(jing)(jing))使(shi)用(yong),空氣(qi)中的(de)(de)(de)(de)塵(chen)埃(ai)和鹽分(fen),都會對主板造(zao)成腐蝕,影響主板的(de)(de)(de)(de)正常使(shi)用(yong),因此(ci)很(hen)(hen)多(duo)工控機有必要(yao)(yao)采用(yong)無風扇的(de)(de)(de)(de)機箱(xiang)結構,防(fang)止(zhi)惡劣環境(jing)(jing)對系統造(zao)成傷害。但(dan)是全密封(feng)無風扇的(de)(de)(de)(de)結構,因為熱源的(de)(de)(de)(de)互相干擾,對主板的(de)(de)(de)(de)性(xing)能(neng)和穩定性(xing)的(de)(de)(de)(de)要(yao)(yao)求比較高,對機構的(de)(de)(de)(de)散熱方(fang)式和散熱效能(neng)的(de)(de)(de)(de)要(yao)(yao)求很(hen)(hen)高,務必要(yao)(yao)將積熱有效散發(fa)出去。
三、使用環境
工控主板常在惡劣環境下工作(壽命期內永久開機、氣候惡劣、潮濕、振動、多塵、輻射、高溫等等),而這些環境下是商用主板無法勝任,當今商業主板大部分只能運行在安定的環境下(工作時間短、室內、常溫等等)。
四、主板元器件的用料與設計:
商用主板:
商用(yong)(yong)主板(ban)(ban)由(you)于(yu)其更(geng)新換代的(de)(de)(de)(de)速(su)度比較(jiao)快,且對產(chan)品(pin)(pin)的(de)(de)(de)(de)穩(wen)定性及使(shi)用(yong)(yong)環境的(de)(de)(de)(de)要求比較(jiao)低(di),故此追求的(de)(de)(de)(de)是(shi)產(chan)品(pin)(pin)的(de)(de)(de)(de)時效(xiao)性,以及本身產(chan)品(pin)(pin)的(de)(de)(de)(de)市(shi)場定位(wei),對元(yuan)器件選擇要求上一般只需(xu)滿足系統運行(xing)2到3年(nian)的(de)(de)(de)(de)使(shi)用(yong)(yong)壽命即(ji)可(ke)(ke)(3年(nian)之后大部(bu)分(fen)已經(jing)更(geng)新換代了),元(yuan)器件的(de)(de)(de)(de)用(yong)(yong)料上使(shi)用(yong)(yong)普通級別的(de)(de)(de)(de)就可(ke)(ke)以了。例如(ru)電容,商用(yong)(yong)主板(ban)(ban)都是(shi)大量使(shi)用(yong)(yong)普通的(de)(de)(de)(de)電解電容,一是(shi)出于(yu)商用(yong)(yong)市(shi)場產(chan)品(pin)(pin)的(de)(de)(de)(de)使(shi)用(yong)(yong)考慮,二是(shi)為降(jiang)低(di)主板(ban)(ban)的(de)(de)(de)(de)成(cheng)本考慮。
工(gong)控主板:
1)工控主板的元器(qi)件
工控(kong)主(zhu)板選(xuan)料會(hui)選(xuan)用(yong)(yong)經過(guo)長時間(jian),高要求驗證元器(qi)(qi)件(jian),用(yong)(yong)以保(bao)證產(chan)品在惡(e)劣條件(jian)下(xia)高可靠性要求。例如工控(kong)主(zhu)板的元器(qi)(qi)件(jian)需要適(shi)應寬溫環境(-20℃~60℃),如固態(tai)電容器(qi)(qi),保(bao)證在惡(e)劣環境下(xia)(壽命(ming)期內(nei)永久開機、氣候惡(e)劣、潮濕、振動(dong)、多塵(chen)、輻射、高溫等(deng)等(deng))正常(chang)工作(zuo);主(zhu)板元器(qi)(qi)件(jian)需要耐(nai)高溫、抗潮濕等(deng)等(deng)。
2)工控主板的電容(rong)
工控(kong)主(zhu)(zhu)板(ban)(ban)采(cai)用(yong)(yong)的(de)(de)(de)(de)(de)(de)是高(gao)質(zhi)量的(de)(de)(de)(de)(de)(de)貼片(pian)式(shi)的(de)(de)(de)(de)(de)(de)固(gu)態電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)、鉭(tan)(tan)、陶瓷電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong),即使(shi)使(shi)用(yong)(yong)的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong),對(dui)其品質(zhi)、性能及(ji)壽命要求也(ye)遠高(gao)于商用(yong)(yong)產(chan)品,現在的(de)(de)(de)(de)(de)(de)工控(kong)主(zhu)(zhu)板(ban)(ban)都基(ji)本(ben)上(shang)采(cai)用(yong)(yong)固(gu)態電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong),特別中(zhong)高(gao)端的(de)(de)(de)(de)(de)(de)工控(kong)主(zhu)(zhu)板(ban)(ban)。商用(yong)(yong)主(zhu)(zhu)板(ban)(ban)基(ji)本(ben)都是大量采(cai)用(yong)(yong)針腳(jiao)式(shi)的(de)(de)(de)(de)(de)(de)大電(dian)(dian)(dian)(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong),因為大電(dian)(dian)(dian)(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)成(cheng)本(ben)低、容(rong)(rong)(rong)(rong)值(zhi)大一個可以頂多個貼片(pian)或坦(tan)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)。從性質(zhi)來說,電(dian)(dian)(dian)(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)穩(wen)定性不(bu)及(ji)鉭(tan)(tan)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)、陶瓷電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)高(gao),壽命不(bu)及(ji)它(ta)們長,耐高(gao)溫程度不(bu)及(ji)它(ta)們好(hao)。貼片(pian)式(shi)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)比(bi)針腳(jiao)式(shi)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)更(geng)加穩(wen)定。從價格(ge)(ge)上(shang),鉭(tan)(tan)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)比(bi)普(pu)通的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)要貴(gui),且由于鉭(tan)(tan)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)量較(jiao)小,使(shi)用(yong)(yong)在主(zhu)(zhu)板(ban)(ban)上(shang)時,需要使(shi)用(yong)(yong)更(geng)多數量的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong),單單鉭(tan)(tan)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)的(de)(de)(de)(de)(de)(de)成(cheng)本(ben)就是電(dian)(dian)(dian)(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)的(de)(de)(de)(de)(de)(de)幾十倍,這也(ye)是導致(zhi)工控(kong)主(zhu)(zhu)板(ban)(ban)比(bi)商用(yong)(yong)主(zhu)(zhu)板(ban)(ban)成(cheng)本(ben)價格(ge)(ge)高(gao)的(de)(de)(de)(de)(de)(de)原因之一。隨著國產(chan)固(gu)態電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)器(qi)廠家越(yue)來越(yue)多,固(gu)態電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)器(qi)的(de)(de)(de)(de)(de)(de)價格(ge)(ge)的(de)(de)(de)(de)(de)(de)下(xia)降(jiang),現在的(de)(de)(de)(de)(de)(de)高(gao)檔次的(de)(de)(de)(de)(de)(de)商用(yong)(yong)主(zhu)(zhu)板(ban)(ban)都在使(shi)用(yong)(yong)固(gu)態電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)器(qi)。
3)工控主板的PCB
商用(yong)主(zhu)板采用(yong)的(de)(de)是(shi)4層(ceng)(ceng)PCB設(she)計,一般的(de)(de)PCB線(xian)路板分有四層(ceng)(ceng),最(zui)(zui)上和最(zui)(zui)下的(de)(de)兩(liang)(liang)層(ceng)(ceng)是(shi)信號層(ceng)(ceng),中(zhong)間(jian)兩(liang)(liang)層(ceng)(ceng)是(shi)接(jie)地(di)層(ceng)(ceng)和電(dian)源層(ceng)(ceng),將接(jie)地(di)和電(dian)源層(ceng)(ceng)放(fang)在中(zhong)間(jian)。工業主(zhu)板采用(yong)的(de)(de)是(shi)6層(ceng)(ceng)以上PCB線(xian)路板設(she)計,其設(she)計是(shi)為了加(jia)強(qiang)主(zhu)板的(de)(de)抗電(dian)磁干擾、電(dian)磁兼(jian)容能力,增強(qiang)主(zhu)板的(de)(de)穩定(ding)性(xing)等(deng)等(deng)。
4)工控主板的壽命
與商用主(zhu)板2到3年使(shi)用壽(shou)命不同,大多數(shu)的(de)工控(kong)主(zhu)板壽(shou)命要求在3年以上,部(bu)分高品質的(de)工控(kong)主(zhu)板,使(shi)用壽(shou)命甚至達(da)到5—7年。