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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app:深圳市澤創偉業科技有限公司
為(wei)什么工控主板的價格比商用(yong)主板高?相信(xin)很多用(yong)戶朋友都有(you)這個疑(yi)問,下面澤(ze)創(chuang)偉業(ye)小編就(jiu)來給大家分(fen)析下。
一、保護功能
商用(yong)主板(ban)沒有提供的(de)任何的(de)保護功能;
工控(kong)主板通(tong)過特(te)殊設計,在遇到死機(ji)等異常情況,可以(yi)實現看門狗(gou)自動重新啟動、防浪涌沖擊等功能(neng),全(quan)力的(de)保證系統在惡(e)劣環(huan)境(jing)的(de)高穩定性的(de)要求。
二、工作溫度與散熱方式
商用(yong)主(zhu)板基本只能在5℃~38℃之間(jian)的環(huan)境溫度中使用(yong),對(dui)機構的散熱要(yao)求低,講(jiang)究外觀(guan)夠(gou)炫夠(gou)酷。
工(gong)(gong)控主(zhu)(zhu)板可以在-20℃~60℃之間(jian)的(de)(de)(de)環(huan)境中穩定、無故障的(de)(de)(de)工(gong)(gong)作(zuo),甚至某些工(gong)(gong)業主(zhu)(zhu)板采(cai)用特(te)(te)殊的(de)(de)(de)寬溫設計,溫度(du)(du)范圍可達-20度(du)(du)~70度(du)(du)。這對機構的(de)(de)(de)散(san)熱(re)方(fang)案,散(san)熱(re)效率(lv)都(dou)是一個嚴(yan)峻的(de)(de)(de)考驗。在工(gong)(gong)控主(zhu)(zhu)板機構的(de)(de)(de)散(san)熱(re)設計上,必須使用的(de)(de)(de)特(te)(te)殊散(san)熱(re)設計,甚至還采(cai)用全鋁(lv)制的(de)(de)(de)機構外殼,而且對CPU、南北橋和硬盤等發熱(re)大戶,進(jin)行特(te)(te)殊處(chu)理,保證工(gong)(gong)控主(zhu)(zhu)板和整機的(de)(de)(de)正常運行。
很多(duo)工控機由(you)于(yu)在惡(e)劣的(de)(de)應用(yong)(yong)環(huan)境下(例(li)如(ru)潮濕、振動、多(duo)塵(chen)、輻射、高溫(wen)等等應用(yong)(yong)環(huan)境)使(shi)(shi)用(yong)(yong),空氣中的(de)(de)塵(chen)埃和鹽分(fen),都(dou)會對主板(ban)造成(cheng)腐蝕,影響主板(ban)的(de)(de)正常使(shi)(shi)用(yong)(yong),因(yin)此(ci)很多(duo)工控機有(you)必要(yao)采用(yong)(yong)無風(feng)扇的(de)(de)機箱結構,防(fang)止惡(e)劣環(huan)境對系統(tong)造成(cheng)傷(shang)害。但(dan)是全(quan)密封(feng)無風(feng)扇的(de)(de)結構,因(yin)為熱源的(de)(de)互相干擾,對主板(ban)的(de)(de)性能和穩定性的(de)(de)要(yao)求(qiu)比較高,對機構的(de)(de)散熱方式和散熱效能的(de)(de)要(yao)求(qiu)很高,務必要(yao)將(jiang)積(ji)熱有(you)效散發出去。
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)主板(ban)由(you)于其更新換代(dai)的(de)速度比較快,且對產(chan)品的(de)穩定(ding)性及使(shi)用(yong)環境(jing)的(de)要求(qiu)(qiu)比較低,故此追求(qiu)(qiu)的(de)是產(chan)品的(de)時效性,以及本(ben)身產(chan)品的(de)市場定(ding)位,對元器(qi)(qi)件選擇(ze)要求(qiu)(qiu)上一(yi)般只需(xu)滿足系統運行(xing)2到(dao)3年的(de)使(shi)用(yong)壽命即可(ke)(3年之(zhi)后大部分已經更新換代(dai)了),元器(qi)(qi)件的(de)用(yong)料上使(shi)用(yong)普通級別的(de)就(jiu)可(ke)以了。例(li)如電(dian)(dian)容,商用(yong)主板(ban)都是大量(liang)使(shi)用(yong)普通的(de)電(dian)(dian)解電(dian)(dian)容,一(yi)是出于商用(yong)市場產(chan)品的(de)使(shi)用(yong)考(kao)慮,二是為(wei)降低主板(ban)的(de)成本(ben)考(kao)慮。
工控主板:
1)工控主(zhu)板的元器件
工(gong)控主(zhu)板選料會(hui)選用經過長時間,高要(yao)(yao)求驗證元(yuan)(yuan)器件(jian),用以保證產(chan)品在(zai)惡劣(lie)(lie)條件(jian)下高可靠性要(yao)(yao)求。例(li)如工(gong)控主(zhu)板的元(yuan)(yuan)器件(jian)需(xu)要(yao)(yao)適(shi)應寬溫環(huan)(huan)境(jing)(-20℃~60℃),如固態電容器,保證在(zai)惡劣(lie)(lie)環(huan)(huan)境(jing)下(壽命期(qi)內永久開機、氣候惡劣(lie)(lie)、潮濕(shi)、振動、多塵、輻射、高溫等(deng)(deng)等(deng)(deng))正常工(gong)作(zuo);主(zhu)板元(yuan)(yuan)器件(jian)需(xu)要(yao)(yao)耐高溫、抗潮濕(shi)等(deng)(deng)等(deng)(deng)。
2)工控主板(ban)的電容
工(gong)(gong)控(kong)主(zhu)(zhu)板(ban)(ban)采(cai)用(yong)的(de)(de)是(shi)高(gao)(gao)質量(liang)的(de)(de)貼(tie)片式的(de)(de)固態(tai)(tai)(tai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)、鉭(tan)、陶(tao)瓷電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong),即使(shi)使(shi)用(yong)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong),對其品質、性(xing)能及壽(shou)命要(yao)求也(ye)(ye)遠高(gao)(gao)于商用(yong)產(chan)品,現在(zai)的(de)(de)工(gong)(gong)控(kong)主(zhu)(zhu)板(ban)(ban)都基本(ben)上(shang)(shang)(shang)采(cai)用(yong)固態(tai)(tai)(tai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong),特(te)別中高(gao)(gao)端的(de)(de)工(gong)(gong)控(kong)主(zhu)(zhu)板(ban)(ban)。商用(yong)主(zhu)(zhu)板(ban)(ban)基本(ben)都是(shi)大量(liang)采(cai)用(yong)針(zhen)腳式的(de)(de)大電(dian)(dian)(dian)(dian)(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong),因為大電(dian)(dian)(dian)(dian)(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)成(cheng)本(ben)低、容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)值大一個可以頂(ding)多個貼(tie)片或坦電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)。從性(xing)質來說(shuo),電(dian)(dian)(dian)(dian)(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)穩定性(xing)不及鉭(tan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)、陶(tao)瓷電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)高(gao)(gao),壽(shou)命不及它們長,耐高(gao)(gao)溫程(cheng)度不及它們好。貼(tie)片式電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)比(bi)針(zhen)腳式電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)更加穩定。從價格上(shang)(shang)(shang),鉭(tan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)比(bi)普通(tong)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)要(yao)貴,且由于鉭(tan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)量(liang)較小,使(shi)用(yong)在(zai)主(zhu)(zhu)板(ban)(ban)上(shang)(shang)(shang)時(shi),需要(yao)使(shi)用(yong)更多數量(liang)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong),單(dan)單(dan)鉭(tan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)的(de)(de)成(cheng)本(ben)就是(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)的(de)(de)幾十倍,這也(ye)(ye)是(shi)導致工(gong)(gong)控(kong)主(zhu)(zhu)板(ban)(ban)比(bi)商用(yong)主(zhu)(zhu)板(ban)(ban)成(cheng)本(ben)價格高(gao)(gao)的(de)(de)原因之一。隨(sui)著(zhu)國產(chan)固態(tai)(tai)(tai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)器廠(chang)家越來越多,固態(tai)(tai)(tai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)器的(de)(de)價格的(de)(de)下降,現在(zai)的(de)(de)高(gao)(gao)檔次的(de)(de)商用(yong)主(zhu)(zhu)板(ban)(ban)都在(zai)使(shi)用(yong)固態(tai)(tai)(tai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)器。
3)工控主板的PCB
商用主板采用的(de)(de)是4層(ceng)(ceng)(ceng)PCB設計,一般的(de)(de)PCB線路(lu)板分有四層(ceng)(ceng)(ceng),最(zui)上和最(zui)下的(de)(de)兩層(ceng)(ceng)(ceng)是信號層(ceng)(ceng)(ceng),中間兩層(ceng)(ceng)(ceng)是接地層(ceng)(ceng)(ceng)和電(dian)源層(ceng)(ceng)(ceng),將接地和電(dian)源層(ceng)(ceng)(ceng)放在中間。工業主板采用的(de)(de)是6層(ceng)(ceng)(ceng)以上PCB線路(lu)板設計,其設計是為(wei)了加強主板的(de)(de)抗(kang)電(dian)磁干擾、電(dian)磁兼容(rong)能力,增強主板的(de)(de)穩(wen)定性等(deng)等(deng)。
4)工控主板的壽命
與商用(yong)主板(ban)2到3年(nian)使(shi)(shi)用(yong)壽(shou)命不同,大多數(shu)的工(gong)控主板(ban)壽(shou)命要求在3年(nian)以上(shang),部分高品質的工(gong)控主板(ban),使(shi)(shi)用(yong)壽(shou)命甚至達(da)到5—7年(nian)。
一、保護功能
商用(yong)主板(ban)沒有提供的(de)任何的(de)保護功能;
工控(kong)主板通(tong)過特(te)殊設計,在遇到死機(ji)等異常情況,可以(yi)實現看門狗(gou)自動重新啟動、防浪涌沖擊等功能(neng),全(quan)力的(de)保證系統在惡(e)劣環(huan)境(jing)的(de)高穩定性的(de)要求。
二、工作溫度與散熱方式
商用(yong)主(zhu)板基本只能在5℃~38℃之間(jian)的環(huan)境溫度中使用(yong),對(dui)機構的散熱要(yao)求低,講(jiang)究外觀(guan)夠(gou)炫夠(gou)酷。
工(gong)(gong)控主(zhu)(zhu)板可以在-20℃~60℃之間(jian)的(de)(de)(de)環(huan)境中穩定、無故障的(de)(de)(de)工(gong)(gong)作(zuo),甚至某些工(gong)(gong)業主(zhu)(zhu)板采(cai)用特(te)(te)殊的(de)(de)(de)寬溫設計,溫度(du)(du)范圍可達-20度(du)(du)~70度(du)(du)。這對機構的(de)(de)(de)散(san)熱(re)方(fang)案,散(san)熱(re)效率(lv)都(dou)是一個嚴(yan)峻的(de)(de)(de)考驗。在工(gong)(gong)控主(zhu)(zhu)板機構的(de)(de)(de)散(san)熱(re)設計上,必須使用的(de)(de)(de)特(te)(te)殊散(san)熱(re)設計,甚至還采(cai)用全鋁(lv)制的(de)(de)(de)機構外殼,而且對CPU、南北橋和硬盤等發熱(re)大戶,進(jin)行特(te)(te)殊處(chu)理,保證工(gong)(gong)控主(zhu)(zhu)板和整機的(de)(de)(de)正常運行。
很多(duo)工控機由(you)于(yu)在惡(e)劣的(de)(de)應用(yong)(yong)環(huan)境下(例(li)如(ru)潮濕、振動、多(duo)塵(chen)、輻射、高溫(wen)等等應用(yong)(yong)環(huan)境)使(shi)(shi)用(yong)(yong),空氣中的(de)(de)塵(chen)埃和鹽分(fen),都(dou)會對主板(ban)造成(cheng)腐蝕,影響主板(ban)的(de)(de)正常使(shi)(shi)用(yong)(yong),因(yin)此(ci)很多(duo)工控機有(you)必要(yao)采用(yong)(yong)無風(feng)扇的(de)(de)機箱結構,防(fang)止惡(e)劣環(huan)境對系統(tong)造成(cheng)傷(shang)害。但(dan)是全(quan)密封(feng)無風(feng)扇的(de)(de)結構,因(yin)為熱源的(de)(de)互相干擾,對主板(ban)的(de)(de)性能和穩定性的(de)(de)要(yao)求(qiu)比較高,對機構的(de)(de)散熱方式和散熱效能的(de)(de)要(yao)求(qiu)很高,務必要(yao)將(jiang)積(ji)熱有(you)效散發出去。
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)主板(ban)由(you)于其更新換代(dai)的(de)速度比較快,且對產(chan)品的(de)穩定(ding)性及使(shi)用(yong)環境(jing)的(de)要求(qiu)(qiu)比較低,故此追求(qiu)(qiu)的(de)是產(chan)品的(de)時效性,以及本(ben)身產(chan)品的(de)市場定(ding)位,對元器(qi)(qi)件選擇(ze)要求(qiu)(qiu)上一(yi)般只需(xu)滿足系統運行(xing)2到(dao)3年的(de)使(shi)用(yong)壽命即可(ke)(3年之(zhi)后大部分已經更新換代(dai)了),元器(qi)(qi)件的(de)用(yong)料上使(shi)用(yong)普通級別的(de)就(jiu)可(ke)以了。例(li)如電(dian)(dian)容,商用(yong)主板(ban)都是大量(liang)使(shi)用(yong)普通的(de)電(dian)(dian)解電(dian)(dian)容,一(yi)是出于商用(yong)市場產(chan)品的(de)使(shi)用(yong)考(kao)慮,二是為(wei)降低主板(ban)的(de)成本(ben)考(kao)慮。
工控主板:
1)工控主(zhu)板的元器件
工(gong)控主(zhu)板選料會(hui)選用經過長時間,高要(yao)(yao)求驗證元(yuan)(yuan)器件(jian),用以保證產(chan)品在(zai)惡劣(lie)(lie)條件(jian)下高可靠性要(yao)(yao)求。例(li)如工(gong)控主(zhu)板的元(yuan)(yuan)器件(jian)需(xu)要(yao)(yao)適(shi)應寬溫環(huan)(huan)境(jing)(-20℃~60℃),如固態電容器,保證在(zai)惡劣(lie)(lie)環(huan)(huan)境(jing)下(壽命期(qi)內永久開機、氣候惡劣(lie)(lie)、潮濕(shi)、振動、多塵、輻射、高溫等(deng)(deng)等(deng)(deng))正常工(gong)作(zuo);主(zhu)板元(yuan)(yuan)器件(jian)需(xu)要(yao)(yao)耐高溫、抗潮濕(shi)等(deng)(deng)等(deng)(deng)。
2)工控主板(ban)的電容
工(gong)(gong)控(kong)主(zhu)(zhu)板(ban)(ban)采(cai)用(yong)的(de)(de)是(shi)高(gao)(gao)質量(liang)的(de)(de)貼(tie)片式的(de)(de)固態(tai)(tai)(tai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)、鉭(tan)、陶(tao)瓷電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong),即使(shi)使(shi)用(yong)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong),對其品質、性(xing)能及壽(shou)命要(yao)求也(ye)(ye)遠高(gao)(gao)于商用(yong)產(chan)品,現在(zai)的(de)(de)工(gong)(gong)控(kong)主(zhu)(zhu)板(ban)(ban)都基本(ben)上(shang)(shang)(shang)采(cai)用(yong)固態(tai)(tai)(tai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong),特(te)別中高(gao)(gao)端的(de)(de)工(gong)(gong)控(kong)主(zhu)(zhu)板(ban)(ban)。商用(yong)主(zhu)(zhu)板(ban)(ban)基本(ben)都是(shi)大量(liang)采(cai)用(yong)針(zhen)腳式的(de)(de)大電(dian)(dian)(dian)(dian)(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong),因為大電(dian)(dian)(dian)(dian)(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)成(cheng)本(ben)低、容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)值大一個可以頂(ding)多個貼(tie)片或坦電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)。從性(xing)質來說(shuo),電(dian)(dian)(dian)(dian)(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)穩定性(xing)不及鉭(tan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)、陶(tao)瓷電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)高(gao)(gao),壽(shou)命不及它們長,耐高(gao)(gao)溫程(cheng)度不及它們好。貼(tie)片式電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)比(bi)針(zhen)腳式電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)更加穩定。從價格上(shang)(shang)(shang),鉭(tan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)比(bi)普通(tong)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)要(yao)貴,且由于鉭(tan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)量(liang)較小,使(shi)用(yong)在(zai)主(zhu)(zhu)板(ban)(ban)上(shang)(shang)(shang)時(shi),需要(yao)使(shi)用(yong)更多數量(liang)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong),單(dan)單(dan)鉭(tan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)的(de)(de)成(cheng)本(ben)就是(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)的(de)(de)幾十倍,這也(ye)(ye)是(shi)導致工(gong)(gong)控(kong)主(zhu)(zhu)板(ban)(ban)比(bi)商用(yong)主(zhu)(zhu)板(ban)(ban)成(cheng)本(ben)價格高(gao)(gao)的(de)(de)原因之一。隨(sui)著(zhu)國產(chan)固態(tai)(tai)(tai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)器廠(chang)家越來越多,固態(tai)(tai)(tai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)器的(de)(de)價格的(de)(de)下降,現在(zai)的(de)(de)高(gao)(gao)檔次的(de)(de)商用(yong)主(zhu)(zhu)板(ban)(ban)都在(zai)使(shi)用(yong)固態(tai)(tai)(tai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)(rong)器。
3)工控主板的PCB
商用主板采用的(de)(de)是4層(ceng)(ceng)(ceng)PCB設計,一般的(de)(de)PCB線路(lu)板分有四層(ceng)(ceng)(ceng),最(zui)上和最(zui)下的(de)(de)兩層(ceng)(ceng)(ceng)是信號層(ceng)(ceng)(ceng),中間兩層(ceng)(ceng)(ceng)是接地層(ceng)(ceng)(ceng)和電(dian)源層(ceng)(ceng)(ceng),將接地和電(dian)源層(ceng)(ceng)(ceng)放在中間。工業主板采用的(de)(de)是6層(ceng)(ceng)(ceng)以上PCB線路(lu)板設計,其設計是為(wei)了加強主板的(de)(de)抗(kang)電(dian)磁干擾、電(dian)磁兼容(rong)能力,增強主板的(de)(de)穩(wen)定性等(deng)等(deng)。
4)工控主板的壽命
與商用(yong)主板(ban)2到3年(nian)使(shi)(shi)用(yong)壽(shou)命不同,大多數(shu)的工(gong)控主板(ban)壽(shou)命要求在3年(nian)以上(shang),部分高品質的工(gong)控主板(ban),使(shi)(shi)用(yong)壽(shou)命甚至達(da)到5—7年(nian)。