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021-51391083
021-51391083
本調查機(ji)可(ke)結束字母(mu)光學高(gao)技術設備、模(mo)擬仿真光學高(gao)技術設備和(he)EDA調查，滿(man)足大、職高(gao)學校光學教程的(de)(de)調查和(he)結業的(de)(de)設計。
一、產品優缺點：
1、該系統(tong)利用(yong)“主板(ban)(ban)接口（首(shou)要實驗所(suo)設計(ji)系統(tong)）+支持(chi)板(ban)(ban)（資源(yuan)下(xia)載百度板(ban)(ban)）”的雙平板(ban)(ban)式節構(gou)，設置靈(ling)巧，支持(chi)板(ban)(ban)可(ke)選擇配Altera、Lattice、Xilinx等多加世界最有(you)名的的PLD集(ji)團公(gong)司大有(you)些(xie)ISP或(huo)環境設置的CPLD/FPGA對其進(jin)行(xing)編(bian)寫程序(xu)資源(yuan)下(xia)載百度，包(bao)含可(ke)對各個工做(zuo)電阻值CPLD/FPGA的編(bian)寫程序(xu)，且在編(bian)寫程序(xu)中不用(yong)做(zuo)一些(xie)線接頭添加即(ji)能會自動檢索軟件主系統(tong)上(shang)的集(ji)成ic，安(an)會正規，比較合適(shi)我們高比熱容的實驗所(suo)設計(ji)控制。
2、該軟(ruan)件(jian)(jian)系(xi)統化(hua)出示(shi)良好(hao)的(de)(de)(de)的(de)(de)(de)結合相電壓(ya)（MV）兼(jian)容功(gong)(gong)能性(xing)鍵，享有了5V、3.3V、2.5V、1.8V不(bu)一(yi)樣芯核相電壓(ya)的(de)(de)(de)CPLD/FPGA電子器(qi)件(jian)(jian)編寫程序下截和工作(zuo)開發設計的(de)(de)(de)全兼(jian)容功(gong)(gong)能性(xing)鍵。之(zhi)所以(yi)，手(shou)機用(yong)戶(hu)可防(fang)止單5V的(de)(de)(de)EDA工作(zuo)軟(ruan)件(jian)(jian)系(xi)統化(hua)流行起來(lai)淘(tao)汰(tai)掉之(zhi)慮(lv)。
3、該(gai)設備可代碼PLD元(yuan)功(gong)率元(yuan)器件(jian)封(feng)裝與實(shi)驗(yan)操(cao)作接(jie)(jie)口的(de)(de)(de)接(jie)(jie)全(quan)(quan)采取(qu)服務性連線，在PLD元(yuan)功(gong)率元(yuan)器件(jian)封(feng)裝有限(xian)責(ze)任(ren)物資前提下，最主(zhu)要概率的(de)(de)(de)接(jie)(jie)上盡概率多的(de)(de)(de)放(fang)入讀(du)取(qu)元(yuan)功(gong)率元(yuan)器件(jian)封(feng)裝和實(shi)驗(yan)操(cao)作接(jie)(jie)口。可全(quan)(quan)滿(man)足了從簡(jian)單數據電(dian)路設備到復雜化數據設備的(de)(de)(de)設汁實(shi)驗(yan)操(cao)作。且(qie)PLD的(de)(de)(de)I/O物資全(quan)(quan)對(dui)外開放(fang)，也可推(tui)動(dong)該(gai)發掘設備結束相關的(de)(de)(de)發掘創業項目。
4、EDA工作(zuo)研發平(ping)(ping)(ping)臺(tai)上(shang)提升了我(wo)廠(chang)家的(de)(de)(de)著作(zuo)權物品“智能工作(zuo)仿真(zhen)(zhen)操(cao)作(zuo)儀器”接口，利用它我(wo)把些更(geng)復雜(za)的(de)(de)(de)工作(zuo)平(ping)(ping)(ping)臺(tai)諸(zhu)如此類高層電(dian)梯掌(zhang)控(kong)(kong)平(ping)(ping)(ping)臺(tai)、數控(kong)(kong)刀庫掌(zhang)控(kong)(kong)平(ping)(ping)(ping)臺(tai)控(kong)(kong)制系(xi)(xi)統(tong)性性化(hua)，即把這此工作(zuo)平(ping)(ping)(ping)臺(tai)轉化(hua)成控(kong)(kong)制系(xi)(xi)統(tong)性性動畫的(de)(de)(de)狀(zhuang)態，進而用CPLD/FPGA元件c語言編程來掌(zhang)控(kong)(kong)什么和(he)什么，以作(zuo)來做到掌(zhang)控(kong)(kong)真(zhen)(zhen)人真(zhen)(zhen)事平(ping)(ping)(ping)臺(tai)的(de)(de)(de)體驗。利用這位儀器我(wo)可優化(hua)十幾個都(dou)具有真(zhen)(zhen)正幣值的(de)(de)(de)工作(zuo)，使(shi)中小學生的(de)(de)(de)工作(zuo)更(geng)靠(kao)近于真(zhen)(zhen)正平(ping)(ping)(ping)臺(tai)和(he)投資(zi)項目的(de)(de)(de)研發。
5、數(shu)電、模電科技創新(xin)工(gong)作(zuo)明亮的摸塊盒體明亮的形象化，內窗部件方法，盒蓋(gai)印有不會掉色部件標點，粗線條清晰可見美觀性(xing)，盒蓋(gai)與盒體使用壓(ya)卡(ka)式設備構(gou)造、維修保養拆(chai)換非(fei)常有利(li)，在桌子中心(xin)實用九孔集成(cheng)(cheng)運(yun)放板(ban)新(xin)任意拼插(cha)盒成(cheng)(cheng)工(gong)作(zuo)集成(cheng)(cheng)運(yun)放，工(gong)作(zuo)非(fei)常有利(li)、比較方便，通過觸感性(xing)能(neng)強。
二、技能性能參數：
1、輸出電(dian)壓(ya)電(dian)流(liu)：交流(liu)信息220V±10% 50Hz
2、工作溫度(du)：-10℃～40℃，相對來(lai)說室內(nei)濕度(du)＜85%（25℃）
3、裝(zhuang)制電容量：＜1KVA
4、外觀尺寸大小：1600mm×700mm×1200mm
三、基(ji)本功能與組(zu)成部分：
（一）實驗英文(wen)臺局部:
1、電壓
1.1外接電源插(cha)入:事(shi)情電流電壓220V±5%(50Hz)，插(cha)入時標示燈(deng)亮(liang)。
1.2電(dian)(dian)原輸(shu)(shu)送：有(you)穩妥絲和(he)漏電(dian)(dian)呵(he)護旋鈕一級呵(he)護模塊(kuai)。 A組:壓(ya)(ya)差(cha)大(da)證書互動工(gong)作(zuo)轉換(huan)功(gong)率3-24V分(fen)七檔(dang)能自由調節，輸(shu)(shu)送瞬時電(dian)(dian)流大(da)小1.5A。 B組: 二組相互單(dan)獨的0-30V交(jiao)(jiao)流電(dian)(dian)電(dian)(dian)流電(dian)(dian)壓(ya)(ya)穩壓(ya)(ya)阻原，內部設(she)置(zhi)式(shi)繼(ji)電(dian)(dian)囂智(zhi)能換(huan)檔(dang)，多圈電(dian)(dian)勢差(cha)器聯續調壓(ya)(ya)，輸(shu)(shu)送瞬時電(dian)(dian)流大(da)小 2A，更(geng)具設(she)置(zhi)式(shi)限流呵(he)護模塊(kuai)。 C組:壓(ya)(ya)差(cha)大(da)證書交(jiao)(jiao)流電(dian)(dian)電(dian)(dian)流電(dian)(dian)壓(ya)(ya)穩壓(ya)(ya)阻原，工(gong)作(zuo)轉換(huan)功(gong)率+5V，+14V。 D組:220V市(shi)電(dian)(dian)輸(shu)(shu)送，供(gong)玩家配(pei)備器材(cai)便用。
2、電機功率效果指數函數產(chan)生器：
1）選(xuan)(xuan)(xuan)(xuan)用(yong)(yong)隨時(shi)數子6頻(pin)帶(dai)寬(kuan)度轉化成(cheng)(cheng)（DDS）形成(cheng)(cheng)高準確度余弦波(bo)，方波(bo)和三角(jiao)型形波(bo)。選(xuan)(xuan)(xuan)(xuan)用(yong)(yong)大信息顯示手機屏LCD信息顯示工(gong)(gong)(gong)作(zuo)的輸(shu)(shu)出精(jing)度頻(pin)帶(dai)寬(kuan)度、波(bo)形參數，衰減(jian)(jian)值(zhi)。 2）余弦波(bo)工(gong)(gong)(gong)作(zuo)的輸(shu)(shu)出精(jing)度小力度≥10V,工(gong)(gong)(gong)作(zuo)的輸(shu)(shu)出精(jing)度輸(shu)(shu)出阻抗50Ω，偏色度<1%（0.1HZ-- 1KHz）。 3）頻(pin)帶(dai)寬(kuan)度領域: 0.1HZ~3MHz, 選(xuan)(xuan)(xuan)(xuan)用(yong)(yong)電腦(nao)鍵盤隨時(shi)填寫數子6設定(ding)(ding)頻(pin)帶(dai)寬(kuan)度,。 4）工(gong)(gong)(gong)作(zuo)的輸(shu)(shu)出精(jing)度小力度選(xuan)(xuan)(xuan)(xuan)用(yong)(yong)電位差(cha)器(qi)設定(ding)(ding)，余弦波(bo)工(gong)(gong)(gong)作(zuo)的輸(shu)(shu)出精(jing)度兼(jian)有20db,40db衰減(jian)(jian)。 5）方波(bo)占(zhan)空比能(neng)自由調高, 設定(ding)(ding)領域：1%-99%設定(ding)(ding)；方波(bo)和三角(jiao)型形波(bo)選(xuan)(xuan)(xuan)(xuan)用(yong)(yong)TTL電平工(gong)(gong)(gong)作(zuo)的輸(shu)(shu)出精(jing)度。 6）頻(pin)帶(dai)寬(kuan)度計上限側(ce)量領域100MHz，自主換檔。
3、七段譯(yi)碼(ma)器及分別譯(yi)碼(ma)彰顯數碼(ma)科技管。
4、EDA實驗裝置(zhi)計算機硬件架構及安裝：
4.1 要選替換(huan)卡(ka)信(xin)息（配(pei)1032科(ke)學(xue)(xue)(xue)(xue)進(jin)(jin)(jin)(jin)行(xing)(xing)檢(jian)測(ce)(ce)(ce)操(cao)(cao)(cao)(cao)作(zuo)(zuo)(zuo)(zuo)卡(ka)） （1）1032科(ke)學(xue)(xue)(xue)(xue)進(jin)(jin)(jin)(jin)行(xing)(xing)檢(jian)測(ce)(ce)(ce)操(cao)(cao)(cao)(cao)作(zuo)(zuo)(zuo)(zuo)卡(ka)：Lattice大(da)(da)新品牌(pai)6000門(men)CPLD功(gong)(gong)(gong)率(lv)集(ji)(ji)(ji)(ji)成(cheng)(cheng)(cheng)(cheng)集(ji)(ji)(ji)(ji)成(cheng)(cheng)(cheng)(cheng)運(yun)(yun)(yun)(yun)(yun)(yun)放(fang)(fang)(fang)(fang)芯(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)，配(pei)進(jin)(jin)(jin)(jin)行(xing)(xing)保(bao)存(cun)(cun)(cun)使(shi)用(yong)(yong)數(shu)(shu)據線； （2）EP1K30科(ke)學(xue)(xue)(xue)(xue)進(jin)(jin)(jin)(jin)行(xing)(xing)檢(jian)測(ce)(ce)(ce)操(cao)(cao)(cao)(cao)作(zuo)(zuo)(zuo)(zuo)卡(ka)：Altera大(da)(da)新品牌(pai)30000門(men)FPGA功(gong)(gong)(gong)率(lv)集(ji)(ji)(ji)(ji)成(cheng)(cheng)(cheng)(cheng)集(ji)(ji)(ji)(ji)成(cheng)(cheng)(cheng)(cheng)運(yun)(yun)(yun)(yun)(yun)(yun)放(fang)(fang)(fang)(fang)芯(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)，配(pei)進(jin)(jin)(jin)(jin)行(xing)(xing)保(bao)存(cun)(cun)(cun)使(shi)用(yong)(yong)數(shu)(shu)據線； （3）EP1K100科(ke)學(xue)(xue)(xue)(xue)進(jin)(jin)(jin)(jin)行(xing)(xing)檢(jian)測(ce)(ce)(ce)操(cao)(cao)(cao)(cao)作(zuo)(zuo)(zuo)(zuo)卡(ka)：Altera大(da)(da)新品牌(pai)100000門(men)FPGA功(gong)(gong)(gong)率(lv)集(ji)(ji)(ji)(ji)成(cheng)(cheng)(cheng)(cheng)集(ji)(ji)(ji)(ji)成(cheng)(cheng)(cheng)(cheng)運(yun)(yun)(yun)(yun)(yun)(yun)放(fang)(fang)(fang)(fang)芯(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)，配(pei)進(jin)(jin)(jin)(jin)行(xing)(xing)保(bao)存(cun)(cun)(cun)使(shi)用(yong)(yong)數(shu)(shu)據線； （4）EP1C6T144科(ke)學(xue)(xue)(xue)(xue)進(jin)(jin)(jin)(jin)行(xing)(xing)檢(jian)測(ce)(ce)(ce)操(cao)(cao)(cao)(cao)作(zuo)(zuo)(zuo)(zuo)卡(ka)：Altera大(da)(da)新品牌(pai)150000門(men)FPGA/SOPC功(gong)(gong)(gong)率(lv)集(ji)(ji)(ji)(ji)成(cheng)(cheng)(cheng)(cheng)集(ji)(ji)(ji)(ji)成(cheng)(cheng)(cheng)(cheng)運(yun)(yun)(yun)(yun)(yun)(yun)放(fang)(fang)(fang)(fang)芯(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)，帶配(pei)制(zhi)芯(xin)(xin)(xin)(xin) 片(pian)(pian)(pian)(pian)：EPCS4（4Mbits），配(pei)進(jin)(jin)(jin)(jin)行(xing)(xing)保(bao)存(cun)(cun)(cun)使(shi)用(yong)(yong)數(shu)(shu)據線。 （5）EP1C12TQ240科(ke)學(xue)(xue)(xue)(xue)進(jin)(jin)(jin)(jin)行(xing)(xing)檢(jian)測(ce)(ce)(ce)操(cao)(cao)(cao)(cao)作(zuo)(zuo)(zuo)(zuo)卡(ka)：Altera大(da)(da)新品牌(pai)300000門(men)FPGA/SOPC功(gong)(gong)(gong)率(lv)集(ji)(ji)(ji)(ji)成(cheng)(cheng)(cheng)(cheng)集(ji)(ji)(ji)(ji)成(cheng)(cheng)(cheng)(cheng)運(yun)(yun)(yun)(yun)(yun)(yun)放(fang)(fang)(fang)(fang)芯(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)，帶配(pei)制(zhi)芯(xin)(xin)(xin)(xin) 片(pian)(pian)(pian)(pian)：EPCS4（4Mbits），配(pei)進(jin)(jin)(jin)(jin)行(xing)(xing)保(bao)存(cun)(cun)(cun)使(shi)用(yong)(yong)數(shu)(shu)據線。 （6）PAC10科(ke)學(xue)(xue)(xue)(xue)進(jin)(jin)(jin)(jin)行(xing)(xing)檢(jian)測(ce)(ce)(ce)操(cao)(cao)(cao)(cao)作(zuo)(zuo)(zuo)(zuo)科(ke)學(xue)(xue)(xue)(xue)進(jin)(jin)(jin)(jin)行(xing)(xing)檢(jian)測(ce)(ce)(ce)操(cao)(cao)(cao)(cao)作(zuo)(zuo)(zuo)(zuo)卡(ka)：Lattice大(da)(da)新品牌(pai)養成(cheng)(cheng)(cheng)(cheng)EDA功(gong)(gong)(gong)率(lv)集(ji)(ji)(ji)(ji)成(cheng)(cheng)(cheng)(cheng)集(ji)(ji)(ji)(ji)成(cheng)(cheng)(cheng)(cheng)運(yun)(yun)(yun)(yun)(yun)(yun)放(fang)(fang)(fang)(fang)芯(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)，配(pei)進(jin)(jin)(jin)(jin)行(xing)(xing)保(bao)存(cun)(cun)(cun)使(shi)用(yong)(yong)數(shu)(shu)據線。 （7）PAC20科(ke)學(xue)(xue)(xue)(xue)進(jin)(jin)(jin)(jin)行(xing)(xing)檢(jian)測(ce)(ce)(ce)操(cao)(cao)(cao)(cao)作(zuo)(zuo)(zuo)(zuo)科(ke)學(xue)(xue)(xue)(xue)進(jin)(jin)(jin)(jin)行(xing)(xing)檢(jian)測(ce)(ce)(ce)操(cao)(cao)(cao)(cao)作(zuo)(zuo)(zuo)(zuo)卡(ka)：Lattice大(da)(da)新品牌(pai)養成(cheng)(cheng)(cheng)(cheng)EDA功(gong)(gong)(gong)率(lv)集(ji)(ji)(ji)(ji)成(cheng)(cheng)(cheng)(cheng)集(ji)(ji)(ji)(ji)成(cheng)(cheng)(cheng)(cheng)運(yun)(yun)(yun)(yun)(yun)(yun)放(fang)(fang)(fang)(fang)芯(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)，配(pei)進(jin)(jin)(jin)(jin)行(xing)(xing)保(bao)存(cun)(cun)(cun)使(shi)用(yong)(yong)數(shu)(shu)據線。 4．2 顯(xian)卡(ka)來源于(yu)信(xin)息 （1）顯(xian)卡(ka)可與多種類進(jin)(jin)(jin)(jin)行(xing)(xing)保(bao)存(cun)(cun)(cun)使(shi)用(yong)(yong)板(ban)相替換(huan)； （2）8位的動(dong)態掃錨體(ti)現集(ji)(ji)(ji)(ji)成(cheng)(cheng)(cheng)(cheng)運(yun)(yun)(yun)(yun)(yun)(yun)放(fang)(fang)(fang)(fang)； （3）12位閃光(guang)電子(zi)元集(ji)(ji)(ji)(ji)成(cheng)(cheng)(cheng)(cheng)三極管芯(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)大(da)(da)家(jia)庭中(zhong)的一員-二極管體(ti)現集(ji)(ji)(ji)(ji)成(cheng)(cheng)(cheng)(cheng)運(yun)(yun)(yun)(yun)(yun)(yun)放(fang)(fang)(fang)(fang)； （4）8位二檔按鈕(niu)(niu)還有(you)電平警示(shi)集(ji)(ji)(ji)(ji)成(cheng)(cheng)(cheng)(cheng)運(yun)(yun)(yun)(yun)(yun)(yun)放(fang)(fang)(fang)(fang)； （5）8位筆(bi)(bi)記(ji)(ji)本(ben)電腦(nao)(nao)鍵(jian)盤按鈕(niu)(niu)集(ji)(ji)(ji)(ji)成(cheng)(cheng)(cheng)(cheng)運(yun)(yun)(yun)(yun)(yun)(yun)放(fang)(fang)(fang)(fang)； （6）電子(zi)功(gong)(gong)(gong)放(fang)(fang)(fang)(fang)音響傳(chuan)(chuan)感(gan)器(qi)； （7）16*16 LED點陣體(ti)現傳(chuan)(chuan)感(gan)器(qi)； （8）128*64 LCD的液(ye)晶(jing)表示(shi)器(qi)體(ti)現傳(chuan)(chuan)感(gan)器(qi)； （9）A/D 0809轉(zhuan)變器(qi)傳(chuan)(chuan)感(gan)器(qi)； （10）D/A 0832轉(zhuan)變器(qi)傳(chuan)(chuan)感(gan)器(qi)； （11）鬧(nao)鐘(zhong)預警源：24MHZ、12MHZ、6MHZ、3MHZ、1.5MHZ、75OKHZ、65536HZ、32768HZ、16834HZ、8192HZ、4096HZ、1024HZ、256HZ、64HZ、16HZ、8HZ、4HZ、2HZ、1HZ、1/2HZ； （12）MCS-51片(pian)(pian)(pian)(pian)式機(ji)尋址(zhi)集(ji)(ji)(ji)(ji)成(cheng)(cheng)(cheng)(cheng)運(yun)(yun)(yun)(yun)(yun)(yun)放(fang)(fang)(fang)(fang)； （13）一兩個四相步(bu)進(jin)(jin)(jin)(jin)直流(liu)變壓器(qi)無(wu)(wu)刷(shua)無(wu)(wu)刷(shua)電機(ji)直流(liu)變壓器(qi)無(wu)(wu)刷(shua)無(wu)(wu)刷(shua)電機(ji)； （14）一兩個4*4小(xiao)筆(bi)(bi)記(ji)(ji)本(ben)電腦(nao)(nao)鍵(jian)盤； （15）一兩個5V直流(liu)變壓器(qi)直流(liu)變壓器(qi)無(wu)(wu)刷(shua)無(wu)(wu)刷(shua)電機(ji)； （16）標配(pei)存(cun)(cun)(cun)貯器(qi)EPROM27256； （17）串行(xing)(xing)A/D轉(zhuan)變TLC549； （18）串行(xing)(xing)D/A轉(zhuan)變TLC5620； （19）一兩個RS232插(cha)孔； （20）一兩個VGA插(cha)孔； （21）一兩個PS/2（筆(bi)(bi)記(ji)(ji)本(ben)電腦(nao)(nao)鍵(jian)盤、鍵(jian)盤鼠標）插(cha)孔； （22）養成(cheng)(cheng)(cheng)(cheng)可編學(xue)(xue)(xue)(xue)習功(gong)(gong)(gong)率(lv)集(ji)(ji)(ji)(ji)成(cheng)(cheng)(cheng)(cheng)集(ji)(ji)(ji)(ji)成(cheng)(cheng)(cheng)(cheng)運(yun)(yun)(yun)(yun)(yun)(yun)放(fang)(fang)(fang)(fang)芯(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)尋址(zhi)傳(chuan)(chuan)感(gan)器(qi)（PAC10、PAC20、PAC80）；(加(jia)裝(zhuang)(zhuang)) （23）正弦波(bo)形(xing)突發器(qi)集(ji)(ji)(ji)(ji)成(cheng)(cheng)(cheng)(cheng)運(yun)(yun)(yun)(yun)(yun)(yun)放(fang)(fang)(fang)(fang) （24）電子(zi)科(ke)學(xue)(xue)(xue)(xue)進(jin)(jin)(jin)(jin)行(xing)(xing)檢(jian)測(ce)(ce)(ce)操(cao)(cao)(cao)(cao)作(zuo)(zuo)(zuo)(zuo)養成(cheng)(cheng)(cheng)(cheng)驗示(shi)系統設計傳(chuan)(chuan)感(gan)器(qi)集(ji)(ji)(ji)(ji)成(cheng)(cheng)(cheng)(cheng)運(yun)(yun)(yun)(yun)(yun)(yun)放(fang)(fang)(fang)(fang)； （25）要加(jia)裝(zhuang)(zhuang)尋址(zhi)快速(su)A/D、D/A轉(zhuan)變傳(chuan)(chuan)感(gan)器(qi)；（26）要加(jia)裝(zhuang)(zhuang)尋址(zhi)USB插(cha)孔尋址(zhi)傳(chuan)(chuan)感(gan)器(qi)；
5、單(dan)筆電(dian)脈(mo)沖(chong)發生(sheng)器：每撥1次鈕子電(dian)開關輸出(chu)一(yi)前一(yi)后(hou)正負極電(dian)脈(mo)沖(chong)發生(sheng)器。
6、外(wai)測交流(liu)(liu)(liu)直流(liu)(liu)(liu)變(bian)壓器二配(pei)電流(liu)(liu)(liu)表：精度等級0.5級，3位(wei)半(ban)數(shu)字(zi)9式展現(xian)，測量方法使用范圍：0－999mA。
7、外測交交流電(dian)二民用(yong)電(dian)壓表(biao)：控制精度0.5級(ji)，九位半(ban)數碼提示，自(zi)動測量超范圍：0－99V。
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