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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
為什么工控(kong)主板(ban)的價格(ge)比商用主板(ban)高(gao)?相信很多用戶朋友都(dou)有這個疑(yi)問(wen)，下面澤創偉業(ye)小編就來給大家分析下。
一、保護功能
商用(yong)主板沒有提供的任何(he)的保護功能;
工控主板通過特殊設計，在遇到(dao)死機等異常情況(kuang)，可(ke)以實(shi)現看門狗自動(dong)重新(xin)啟(qi)動(dong)、防浪涌沖擊(ji)等功能，全力的(de)保證系統(tong)在惡劣環境(jing)的(de)高穩定性的(de)要(yao)求。
二、工作溫度與散熱方式
商用主板基(ji)本(ben)只能在5℃~38℃之間的環境溫度中(zhong)使用，對機構的散熱(re)要(yao)求(qiu)低，講究外觀夠炫夠酷。
工(gong)控主(zhu)板可以(yi)在(zai)-20℃~60℃之間(jian)的(de)環境中(zhong)穩定(ding)、無(wu)故(gu)障的(de)工(gong)作(zuo)，甚至某些(xie)工(gong)業主(zhu)板采用特(te)殊的(de)寬溫設計(ji)，溫度范(fan)圍可達-20度~70度。這對機構的(de)散(san)熱(re)方案(an)，散(san)熱(re)效率都是一個嚴峻的(de)考驗(yan)。在(zai)工(gong)控主(zhu)板機構的(de)散(san)熱(re)設計(ji)上，必須使用的(de)特(te)殊散(san)熱(re)設計(ji)，甚至還(huan)采用全鋁(lv)制(zhi)的(de)機構外殼(ke)，而且對CPU、南(nan)北橋和硬盤(pan)等發(fa)熱(re)大戶，進行特(te)殊處理，保證工(gong)控主(zhu)板和整機的(de)正常(chang)運行。
很(hen)多工(gong)控機(ji)由于在惡劣的應(ying)用(yong)(yong)環境下(例如潮濕、振動、多塵(chen)、輻射(she)、高(gao)溫等等應(ying)用(yong)(yong)環境)使用(yong)(yong)，空氣中的塵(chen)埃和鹽分，都(dou)會對主板(ban)造(zao)成腐蝕，影(ying)響主板(ban)的正常使用(yong)(yong)，因此很(hen)多工(gong)控機(ji)有必要采(cai)用(yong)(yong)無風扇(shan)的機(ji)箱結(jie)(jie)構(gou)，防止惡劣環境對系統(tong)造(zao)成傷(shang)害。但是全密封無風扇(shan)的結(jie)(jie)構(gou)，因為熱(re)(re)源的互相干擾(rao)，對主板(ban)的性(xing)(xing)能和穩定性(xing)(xing)的要求(qiu)(qiu)比較高(gao)，對機(ji)構(gou)的散熱(re)(re)方式和散熱(re)(re)效能的要求(qiu)(qiu)很(hen)高(gao)，務必要將積熱(re)(re)有效散發出去。
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(zhu)板：
商(shang)用(yong)主板(ban)由于其更新(xin)(xin)換(huan)代的(de)(de)速度比較(jiao)快，且對產品(pin)(pin)(pin)的(de)(de)穩定(ding)性及(ji)使用(yong)環境的(de)(de)要求(qiu)比較(jiao)低(di)，故此追求(qiu)的(de)(de)是(shi)產品(pin)(pin)(pin)的(de)(de)時效(xiao)性，以及(ji)本(ben)身產品(pin)(pin)(pin)的(de)(de)市場(chang)定(ding)位，對元(yuan)器(qi)件選擇要求(qiu)上一般只需滿足系統運行(xing)2到3年的(de)(de)使用(yong)壽命即(ji)可(ke)(3年之后(hou)大部分已經更新(xin)(xin)換(huan)代了(le))，元(yuan)器(qi)件的(de)(de)用(yong)料上使用(yong)普(pu)通級(ji)別的(de)(de)就可(ke)以了(le)。例如電容，商(shang)用(yong)主板(ban)都是(shi)大量(liang)使用(yong)普(pu)通的(de)(de)電解電容，一是(shi)出于商(shang)用(yong)市場(chang)產品(pin)(pin)(pin)的(de)(de)使用(yong)考(kao)慮，二是(shi)為降低(di)主板(ban)的(de)(de)成本(ben)考(kao)慮。
工控主板(ban)：
1)工(gong)控(kong)主板的元器件
工控(kong)主板選料會選用經過長(chang)時(shi)間(jian)，高(gao)要求驗(yan)證元(yuan)器(qi)(qi)件，用以(yi)保證產品在(zai)惡劣條件下高(gao)可(ke)靠性(xing)要求。例(li)如工控(kong)主板的(de)元(yuan)器(qi)(qi)件需要適應(ying)寬溫環境(-20℃~60℃)，如固態電容器(qi)(qi)，保證在(zai)惡劣環境下(壽命期(qi)內永久開機、氣候(hou)惡劣、潮濕、振(zhen)動(dong)、多塵、輻射、高(gao)溫等等)正(zheng)常工作;主板元(yuan)器(qi)(qi)件需要耐高(gao)溫、抗(kang)潮濕等等。
2)工(gong)控主板的電容
工控主(zhu)板(ban)采(cai)(cai)用(yong)(yong)(yong)(yong)的(de)(de)是(shi)高(gao)(gao)(gao)質量(liang)的(de)(de)貼片(pian)式的(de)(de)固(gu)(gu)態電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)、鉭(tan)(tan)、陶瓷(ci)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)，即使(shi)(shi)使(shi)(shi)用(yong)(yong)(yong)(yong)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)，對(dui)其品質、性能及(ji)壽命要求也遠高(gao)(gao)(gao)于(yu)商(shang)用(yong)(yong)(yong)(yong)產品，現(xian)在(zai)的(de)(de)工控主(zhu)板(ban)都(dou)基(ji)本(ben)上(shang)采(cai)(cai)用(yong)(yong)(yong)(yong)固(gu)(gu)態電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)，特別中高(gao)(gao)(gao)端的(de)(de)工控主(zhu)板(ban)。商(shang)用(yong)(yong)(yong)(yong)主(zhu)板(ban)基(ji)本(ben)都(dou)是(shi)大量(liang)采(cai)(cai)用(yong)(yong)(yong)(yong)針腳式的(de)(de)大電(dian)(dian)(dian)(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(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)(rong)成(cheng)本(ben)低(di)、容(rong)(rong)(rong)(rong)(rong)值大一個可以頂多(duo)個貼片(pian)或坦電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)。從性質來(lai)說，電(dian)(dian)(dian)(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)穩定(ding)(ding)性不(bu)及(ji)鉭(tan)(tan)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)、陶瓷(ci)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)高(gao)(gao)(gao)，壽命不(bu)及(ji)它們(men)長，耐高(gao)(gao)(gao)溫程度不(bu)及(ji)它們(men)好。貼片(pian)式電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)比針腳式電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)更加穩定(ding)(ding)。從價(jia)格上(shang)，鉭(tan)(tan)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)比普通的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)要貴，且由(you)于(yu)鉭(tan)(tan)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)量(liang)較小，使(shi)(shi)用(yong)(yong)(yong)(yong)在(zai)主(zhu)板(ban)上(shang)時，需要使(shi)(shi)用(yong)(yong)(yong)(yong)更多(duo)數量(liang)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)，單單鉭(tan)(tan)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)的(de)(de)成(cheng)本(ben)就是(shi)電(dian)(dian)(dian)(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)的(de)(de)幾(ji)十倍，這也是(shi)導(dao)致工控主(zhu)板(ban)比商(shang)用(yong)(yong)(yong)(yong)主(zhu)板(ban)成(cheng)本(ben)價(jia)格高(gao)(gao)(gao)的(de)(de)原(yuan)因之一。隨著國產固(gu)(gu)態電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)器廠(chang)家越來(lai)越多(duo)，固(gu)(gu)態電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)器的(de)(de)價(jia)格的(de)(de)下降，現(xian)在(zai)的(de)(de)高(gao)(gao)(gao)檔次的(de)(de)商(shang)用(yong)(yong)(yong)(yong)主(zhu)板(ban)都(dou)在(zai)使(shi)(shi)用(yong)(yong)(yong)(yong)固(gu)(gu)態電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)器。
3)工控主板的PCB
商用(yong)(yong)主板(ban)(ban)采用(yong)(yong)的(de)(de)是4層(ceng)(ceng)PCB設(she)(she)計(ji)，一般(ban)的(de)(de)PCB線路板(ban)(ban)分有四層(ceng)(ceng)，最上和(he)最下的(de)(de)兩(liang)層(ceng)(ceng)是信號(hao)層(ceng)(ceng)，中(zhong)間(jian)兩(liang)層(ceng)(ceng)是接地層(ceng)(ceng)和(he)電(dian)(dian)源層(ceng)(ceng)，將接地和(he)電(dian)(dian)源層(ceng)(ceng)放(fang)在(zai)中(zhong)間(jian)。工業主板(ban)(ban)采用(yong)(yong)的(de)(de)是6層(ceng)(ceng)以(yi)上PCB線路板(ban)(ban)設(she)(she)計(ji)，其設(she)(she)計(ji)是為了加強主板(ban)(ban)的(de)(de)抗電(dian)(dian)磁(ci)干(gan)擾、電(dian)(dian)磁(ci)兼容能(neng)力，增(zeng)強主板(ban)(ban)的(de)(de)穩(wen)定(ding)性等(deng)等(deng)。
4)工控(kong)主板(ban)的壽命
與商用主板2到(dao)(dao)3年(nian)使用壽(shou)命不同(tong)，大多數的(de)工控(kong)(kong)主板壽(shou)命要求在3年(nian)以上(shang)，部分高(gao)品質的(de)工控(kong)(kong)主板，使用壽(shou)命甚至達到(dao)(dao)5—7年(nian)。
一、保護功能
商用(yong)主板沒有提供的任何(he)的保護功能;
工控主板通過特殊設計，在遇到(dao)死機等異常情況(kuang)，可(ke)以實(shi)現看門狗自動(dong)重新(xin)啟(qi)動(dong)、防浪涌沖擊(ji)等功能，全力的(de)保證系統(tong)在惡劣環境(jing)的(de)高穩定性的(de)要(yao)求。
二、工作溫度與散熱方式
商用主板基(ji)本(ben)只能在5℃~38℃之間的環境溫度中(zhong)使用，對機構的散熱(re)要(yao)求(qiu)低，講究外觀夠炫夠酷。
工(gong)控主(zhu)板可以(yi)在(zai)-20℃~60℃之間(jian)的(de)環境中(zhong)穩定(ding)、無(wu)故(gu)障的(de)工(gong)作(zuo)，甚至某些(xie)工(gong)業主(zhu)板采用特(te)殊的(de)寬溫設計(ji)，溫度范(fan)圍可達-20度~70度。這對機構的(de)散(san)熱(re)方案(an)，散(san)熱(re)效率都是一個嚴峻的(de)考驗(yan)。在(zai)工(gong)控主(zhu)板機構的(de)散(san)熱(re)設計(ji)上，必須使用的(de)特(te)殊散(san)熱(re)設計(ji)，甚至還(huan)采用全鋁(lv)制(zhi)的(de)機構外殼(ke)，而且對CPU、南(nan)北橋和硬盤(pan)等發(fa)熱(re)大戶，進行特(te)殊處理，保證工(gong)控主(zhu)板和整機的(de)正常(chang)運行。
很(hen)多工(gong)控機(ji)由于在惡劣的應(ying)用(yong)(yong)環境下(例如潮濕、振動、多塵(chen)、輻射(she)、高(gao)溫等等應(ying)用(yong)(yong)環境)使用(yong)(yong)，空氣中的塵(chen)埃和鹽分，都(dou)會對主板(ban)造(zao)成腐蝕，影(ying)響主板(ban)的正常使用(yong)(yong)，因此很(hen)多工(gong)控機(ji)有必要采(cai)用(yong)(yong)無風扇(shan)的機(ji)箱結(jie)(jie)構(gou)，防止惡劣環境對系統(tong)造(zao)成傷(shang)害。但是全密封無風扇(shan)的結(jie)(jie)構(gou)，因為熱(re)(re)源的互相干擾(rao)，對主板(ban)的性(xing)(xing)能和穩定性(xing)(xing)的要求(qiu)(qiu)比較高(gao)，對機(ji)構(gou)的散熱(re)(re)方式和散熱(re)(re)效能的要求(qiu)(qiu)很(hen)高(gao)，務必要將積熱(re)(re)有效散發出去。
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(zhu)板：
商(shang)用(yong)主板(ban)由于其更新(xin)(xin)換(huan)代的(de)(de)速度比較(jiao)快，且對產品(pin)(pin)(pin)的(de)(de)穩定(ding)性及(ji)使用(yong)環境的(de)(de)要求(qiu)比較(jiao)低(di)，故此追求(qiu)的(de)(de)是(shi)產品(pin)(pin)(pin)的(de)(de)時效(xiao)性，以及(ji)本(ben)身產品(pin)(pin)(pin)的(de)(de)市場(chang)定(ding)位，對元(yuan)器(qi)件選擇要求(qiu)上一般只需滿足系統運行(xing)2到3年的(de)(de)使用(yong)壽命即(ji)可(ke)(3年之后(hou)大部分已經更新(xin)(xin)換(huan)代了(le))，元(yuan)器(qi)件的(de)(de)用(yong)料上使用(yong)普(pu)通級(ji)別的(de)(de)就可(ke)以了(le)。例如電容，商(shang)用(yong)主板(ban)都是(shi)大量(liang)使用(yong)普(pu)通的(de)(de)電解電容，一是(shi)出于商(shang)用(yong)市場(chang)產品(pin)(pin)(pin)的(de)(de)使用(yong)考(kao)慮，二是(shi)為降低(di)主板(ban)的(de)(de)成本(ben)考(kao)慮。
工控主板(ban)：
1)工(gong)控(kong)主板的元器件
工控(kong)主板選料會選用經過長(chang)時(shi)間(jian)，高(gao)要求驗(yan)證元(yuan)器(qi)(qi)件，用以(yi)保證產品在(zai)惡劣條件下高(gao)可(ke)靠性(xing)要求。例(li)如工控(kong)主板的(de)元(yuan)器(qi)(qi)件需要適應(ying)寬溫環境(-20℃~60℃)，如固態電容器(qi)(qi)，保證在(zai)惡劣環境下(壽命期(qi)內永久開機、氣候(hou)惡劣、潮濕、振(zhen)動(dong)、多塵、輻射、高(gao)溫等等)正(zheng)常工作;主板元(yuan)器(qi)(qi)件需要耐高(gao)溫、抗(kang)潮濕等等。
2)工(gong)控主板的電容
工控主(zhu)板(ban)采(cai)(cai)用(yong)(yong)(yong)(yong)的(de)(de)是(shi)高(gao)(gao)(gao)質量(liang)的(de)(de)貼片(pian)式的(de)(de)固(gu)(gu)態電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)、鉭(tan)(tan)、陶瓷(ci)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)，即使(shi)(shi)使(shi)(shi)用(yong)(yong)(yong)(yong)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)，對(dui)其品質、性能及(ji)壽命要求也遠高(gao)(gao)(gao)于(yu)商(shang)用(yong)(yong)(yong)(yong)產品，現(xian)在(zai)的(de)(de)工控主(zhu)板(ban)都(dou)基(ji)本(ben)上(shang)采(cai)(cai)用(yong)(yong)(yong)(yong)固(gu)(gu)態電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)，特別中高(gao)(gao)(gao)端的(de)(de)工控主(zhu)板(ban)。商(shang)用(yong)(yong)(yong)(yong)主(zhu)板(ban)基(ji)本(ben)都(dou)是(shi)大量(liang)采(cai)(cai)用(yong)(yong)(yong)(yong)針腳式的(de)(de)大電(dian)(dian)(dian)(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(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)(rong)成(cheng)本(ben)低(di)、容(rong)(rong)(rong)(rong)(rong)值大一個可以頂多(duo)個貼片(pian)或坦電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)。從性質來(lai)說，電(dian)(dian)(dian)(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)穩定(ding)(ding)性不(bu)及(ji)鉭(tan)(tan)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)、陶瓷(ci)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)高(gao)(gao)(gao)，壽命不(bu)及(ji)它們(men)長，耐高(gao)(gao)(gao)溫程度不(bu)及(ji)它們(men)好。貼片(pian)式電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)比針腳式電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)更加穩定(ding)(ding)。從價(jia)格上(shang)，鉭(tan)(tan)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)比普通的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)要貴，且由(you)于(yu)鉭(tan)(tan)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)量(liang)較小，使(shi)(shi)用(yong)(yong)(yong)(yong)在(zai)主(zhu)板(ban)上(shang)時，需要使(shi)(shi)用(yong)(yong)(yong)(yong)更多(duo)數量(liang)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)，單單鉭(tan)(tan)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)的(de)(de)成(cheng)本(ben)就是(shi)電(dian)(dian)(dian)(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)的(de)(de)幾(ji)十倍，這也是(shi)導(dao)致工控主(zhu)板(ban)比商(shang)用(yong)(yong)(yong)(yong)主(zhu)板(ban)成(cheng)本(ben)價(jia)格高(gao)(gao)(gao)的(de)(de)原(yuan)因之一。隨著國產固(gu)(gu)態電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)器廠(chang)家越來(lai)越多(duo)，固(gu)(gu)態電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)器的(de)(de)價(jia)格的(de)(de)下降，現(xian)在(zai)的(de)(de)高(gao)(gao)(gao)檔次的(de)(de)商(shang)用(yong)(yong)(yong)(yong)主(zhu)板(ban)都(dou)在(zai)使(shi)(shi)用(yong)(yong)(yong)(yong)固(gu)(gu)態電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)器。
3)工控主板的PCB
商用(yong)(yong)主板(ban)(ban)采用(yong)(yong)的(de)(de)是4層(ceng)(ceng)PCB設(she)(she)計(ji)，一般(ban)的(de)(de)PCB線路板(ban)(ban)分有四層(ceng)(ceng)，最上和(he)最下的(de)(de)兩(liang)層(ceng)(ceng)是信號(hao)層(ceng)(ceng)，中(zhong)間(jian)兩(liang)層(ceng)(ceng)是接地層(ceng)(ceng)和(he)電(dian)(dian)源層(ceng)(ceng)，將接地和(he)電(dian)(dian)源層(ceng)(ceng)放(fang)在(zai)中(zhong)間(jian)。工業主板(ban)(ban)采用(yong)(yong)的(de)(de)是6層(ceng)(ceng)以(yi)上PCB線路板(ban)(ban)設(she)(she)計(ji)，其設(she)(she)計(ji)是為了加強主板(ban)(ban)的(de)(de)抗電(dian)(dian)磁(ci)干(gan)擾、電(dian)(dian)磁(ci)兼容能(neng)力，增(zeng)強主板(ban)(ban)的(de)(de)穩(wen)定(ding)性等(deng)等(deng)。
4)工控(kong)主板(ban)的壽命
與商用主板2到(dao)(dao)3年(nian)使用壽(shou)命不同(tong)，大多數的(de)工控(kong)(kong)主板壽(shou)命要求在3年(nian)以上(shang)，部分高(gao)品質的(de)工控(kong)(kong)主板，使用壽(shou)命甚至達到(dao)(dao)5—7年(nian)。
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