本(ben)進行(xing)工作(zuo)所(suo)儀器可(ke)順利完成數子智(zhi)(zhi)能光(guang)電無(wu)線信息(xi)方(fang)法(fa)水平(ping)、模擬機智(zhi)(zhi)能光(guang)電無(wu)線信息(xi)方(fang)法(fa)水平(ping)和EDA進行(xing)工作(zuo)所(suo)，可(ke)以大、中專(zhuan)班本(ben)科學(xue)校智(zhi)(zhi)能光(guang)電無(wu)線課程培訓的進行(xing)工作(zuo)所(suo)和文憑設計構思。

一、成品顯著特點：

1、該體(ti)統(tong)(tong)做(zuo)出“主板(ban)基(ji)(ji)帶芯片（基(ji)(ji)礎檢(jian)(jian)測(ce)(ce)體(ti)統(tong)(tong)）+適應板(ban)（安(an)裝板(ban)）”的(de)雙平板(ban)式型式，分配機靈，適應板(ban)能選(xuan)配Altera、Lattice、Xilinx等(deng)余家國際級(ji)舉世聞名的(de)PLD品牌(pai)大局部ISP或場地分配的(de)CPLD/FPGA做(zuo)出語(yu)言代(dai)碼(ma)編(bian)程(cheng)(cheng)序安(an)裝，以及可對各種工作的(de)電阻值CPLD/FPGA的(de)語(yu)言代(dai)碼(ma)編(bian)程(cheng)(cheng)序，且在語(yu)言代(dai)碼(ma)編(bian)程(cheng)(cheng)序中不需要(yao)做(zuo)任何的(de)漏線切回即能電腦自動分辨主體(ti)統(tong)(tong)上的(de)基(ji)(ji)帶芯片，安(an)全管理耐用(yong)，適考(kao)生高(gao)密集度計算的(de)檢(jian)(jian)測(ce)(ce)基(ji)(ji)本(ben)操作。

2、該軟(ruan)件(jian)模式兼具優良的(de)(de)相混電(dian)壓(ya)值(zhi)（MV）兼容(rong)技能，兼具了5V、3.3V、2.5V、1.8V與眾不同芯(xin)核電(dian)廠壓(ya)值(zhi)的(de)(de)CPLD/FPGA配件(jian)編寫程序進行下載(zai)和實驗操作設計的(de)(de)開發的(de)(de)全兼容(rong)技能。那么(me)，用戶組(zu)可防(fang)止單5V的(de)(de)EDA實驗操作設計軟(ruan)件(jian)模式過期(qi)淘汰出(chu)局之慮。

3、該裝(zhuang)置(zhi)化可代(dai)碼PLD配件與科(ke)(ke)學進(jin)行(xing)實(shi)驗英(ying)文轉換模(mo)塊圖片的(de)(de)無線連結所有 主要采用自(zi)行(xing)連線，在PLD配件有限的(de)(de)產品(pin)條件下，最大(da)的(de)(de)容許的(de)(de)無線連結上(shang)更性(xing)多的(de)(de)填寫轉換配件和科(ke)(ke)學進(jin)行(xing)實(shi)驗英(ying)文轉換模(mo)塊圖片。可全部滿意(yi)從單純自(zi)然數1集成運放到(dao)非常復雜自(zi)然數1裝(zhuang)置(zhi)化的(de)(de)設計(ji)制作科(ke)(ke)學進(jin)行(xing)實(shi)驗英(ying)文。且(qie)PLD的(de)(de)I/O產品(pin)全部開放性(xing)，也可只依靠該發(fa)掘裝(zhuang)置(zhi)化實(shi)現(xian)相(xiang)應發(fa)掘新(xin)項目。

4、EDA調查(cha)室(shi)(shi)所(suo)激發整(zheng)體(ti)小軟(ruan)(ruan)(ruan)件(jian)(jian)上增高了我工司(si)(si)的(de)專屬了物(wu)料“電子元元件(jian)(jian)調查(cha)室(shi)(shi)所(suo)模(mo)似(si)演試傳動裝(zhuang)置設備(bei)”輸出模(mo)塊，完成它(ta)我門公司(si)(si)把(ba)(ba)有(you)一些復雜(za)性的(de)調查(cha)室(shi)(shi)所(suo)整(zheng)體(ti)小軟(ruan)(ruan)(ruan)件(jian)(jian)如(ru)升降機(ji)把(ba)(ba)控好(hao)整(zheng)體(ti)小軟(ruan)(ruan)(ruan)件(jian)(jian)、數控刀庫把(ba)(ba)控好(hao)整(zheng)體(ti)小軟(ruan)(ruan)(ruan)件(jian)(jian)小軟(ruan)(ruan)(ruan)件(jian)(jian)化，即把(ba)(ba)這此調查(cha)室(shi)(shi)所(suo)整(zheng)體(ti)小軟(ruan)(ruan)(ruan)件(jian)(jian)制作(zuo)小軟(ruan)(ruan)(ruan)件(jian)(jian)動畫片的(de)樣式，第二步用CPLD/FPGA元件(jian)(jian)編(bian)寫程序來把(ba)(ba)控好(hao)什(shen)么和(he)什(shen)么，以來達到了把(ba)(ba)控好(hao)真(zhen)人(ren)真(zhen)事整(zheng)體(ti)小軟(ruan)(ruan)(ruan)件(jian)(jian)的(de)治療效果。完成這些傳動裝(zhuang)置設備(bei)我門公司(si)(si)應該拓張(zhang)十(shi)幾個更(geng)具(ju)(ju)具(ju)(ju)體(ti)商(shang)業價(jia)值的(de)調查(cha)室(shi)(shi)所(suo)，使同學(xue)們的(de)調查(cha)室(shi)(shi)所(suo)更(geng)靠近于具(ju)(ju)體(ti)整(zheng)體(ti)小軟(ruan)(ruan)(ruan)件(jian)(jian)和(he)活(huo)動的(de)激發。

5、數電、模電創(chuang)新技術檢(jian)測半公開方(fang)案(an)盒體半公開直接，玻璃采光頂(ding)電氣部件洞若觀火(huo)，盒蓋(gai)印有永遠(yuan)腿色電氣部件標(biao)記，粗(cu)線(xian)條清晰明了(le)漂亮，盒蓋(gai)與盒體分為壓卡(ka)式設(she)備構造、售(shou)后維修拆(chai)御(yu)利于(yu)，在主屏(ping)幕(mu)中央(yang)軍事萬能九孔控制(zhi)電路系統(tong)板就職(zhi)意拼插盒成(cheng)檢(jian)測控制(zhi)電路系統(tong)，檢(jian)測利于(yu)、高效，動手拆(chai)裝(zhuang)工作能力強。

二、新技術機械(xie)性(xing)能：

1、讀取電阻值：交流(liu)溝(gou)通220V±10% 50Hz

2、溫(wen)暖(nuan)：-10℃～40℃，相對(dui)的溫(wen)度(du)濕(shi)度(du)＜85%（25℃）

3、器(qi)儲存量：＜1KVA

4、看上去(qu)長寬(kuan)高：1600mm×700mm×1200mm

三、技能與構成：

（一）實驗操作臺那(nei)部(bu)分:

1、電源開關

1.1電源開關鍵盤(pan)插入:事情輸(shu)出功率(lv)220V±5%(50Hz)，鍵盤(pan)插入時指示箭(jian)頭(tou)燈(deng)亮。

1.2學(xue)(xue)習交(jiao)流(liu)(liu)(liu)開(kai)關(guan)電(dian)(dian)(dian)(dian)(dian)源(yuan)線(xian)導(dao)出(chu)：有(you)穩(wen)妥絲和漏電(dian)(dian)(dian)(dian)(dian)守護(hu)旋(xuan)鈕二(er)次元守護(hu)性(xing)能。 A組(zu)(zu)(zu):高壓(ya)(ya)(ya)(ya)證書學(xue)(xue)習交(jiao)流(liu)(liu)(liu)瞬(shun)時(shi)(shi)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)降3-24V分七檔(dang)隨意調(diao)節(jie)，導(dao)出(chu)功率1.5A。 B組(zu)(zu)(zu): 二(er)組(zu)(zu)(zu)之間單(dan)獨的(de)0-30V瞬(shun)時(shi)(shi)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)穩(wen)壓(ya)(ya)(ya)(ya)學(xue)(xue)習交(jiao)流(liu)(liu)(liu)開(kai)關(guan)電(dian)(dian)(dian)(dian)(dian)源(yuan)線(xian)，原機(ji)式繼物品自動的(de)換檔(dang)，多(duo)圈電(dian)(dian)(dian)(dian)(dian)勢差器連著調(diao)壓(ya)(ya)(ya)(ya)，導(dao)出(chu)功率 2A，具有(you)著預置(zhi)式限流(liu)(liu)(liu)守護(hu)性(xing)能。 C組(zu)(zu)(zu):高壓(ya)(ya)(ya)(ya)證書瞬(shun)時(shi)(shi)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)穩(wen)壓(ya)(ya)(ya)(ya)學(xue)(xue)習交(jiao)流(liu)(liu)(liu)開(kai)關(guan)電(dian)(dian)(dian)(dian)(dian)源(yuan)線(xian)，瞬(shun)時(shi)(shi)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)降+5V，+14V。 D組(zu)(zu)(zu):二(er)相市電(dian)(dian)(dian)(dian)(dian)導(dao)出(chu)，供手機(ji)用戶配(pei)備(bei)實驗儀器選用。

2、電機功率輸入函(han)數公式發生了器：

1）進(jin)(jin)行(xing)(xing)隨便自(zi)然數(shu)(shu)(shu)(shu)頻(pin)(pin)點(dian)煉制(zhi)（DDS）引起高精密度(du)正弦函(han)數(shu)(shu)(shu)(shu)函(han)數(shu)(shu)(shu)(shu)交(jiao)流電(dian)(dian)波(bo)，方(fang)波(bo)和(he)四角波(bo)。進(jin)(jin)行(xing)(xing)大出現(xian)手(shou)機屏LCD出現(xian)錄(lu)入(ru)(ru)(ru)頻(pin)(pin)點(dian)、波(bo)形參(can)數(shu)(shu)(shu)(shu)，衰減(jian)值。 2）正弦函(han)數(shu)(shu)(shu)(shu)函(han)數(shu)(shu)(shu)(shu)交(jiao)流電(dian)(dian)波(bo)錄(lu)入(ru)(ru)(ru)比率≥10V,錄(lu)入(ru)(ru)(ru)阻抗(kang)匹(pi)配50Ω，失(shi)幀(zhen)度(du)<1%（0.1HZ-- 1KHz）。 3）頻(pin)(pin)點(dian)面積: 0.1HZ~3MHz, 進(jin)(jin)行(xing)(xing)健(jian)盤隨便錄(lu)入(ru)(ru)(ru)自(zi)然數(shu)(shu)(shu)(shu)選用頻(pin)(pin)點(dian),。 4）錄(lu)入(ru)(ru)(ru)比率進(jin)(jin)行(xing)(xing)電(dian)(dian)位差器控制(zhi)，正弦函(han)數(shu)(shu)(shu)(shu)函(han)數(shu)(shu)(shu)(shu)交(jiao)流電(dian)(dian)波(bo)錄(lu)入(ru)(ru)(ru)更(geng)具20db,40db衰減(jian)。 5）方(fang)波(bo)占空(kong)比可手(shou)動轉(zhuan)換(huan), 控制(zhi)面積：1%-99%控制(zhi)；方(fang)波(bo)和(he)四角波(bo)進(jin)(jin)行(xing)(xing)TTL電(dian)(dian)平錄(lu)入(ru)(ru)(ru)。 6）頻(pin)(pin)點(dian)計最(zui)低衡(heng)量面積100MHz，全自(zi)動換(huan)檔。

3、七段譯碼器及分別譯碼顯示(shi)信(xin)息電子數碼管。

4、EDA測試平臺硬件(jian)設備組成部(bu)分及選配：

4.1 要選(xuan)兼(jian)容性測(ce)試卡(ka)市場(chang)（標(biao)(biao)準(zhun)(zhun)(zhun)搭配(pei)1032實(shi)(shi)(shi)(shi)踐卡(ka)） （1）1032實(shi)(shi)(shi)(shi)踐卡(ka)：Lattice平(ping)(ping)(ping)臺(tai)6000門(men)CPLD集(ji)(ji)(ji)成(cheng)(cheng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)線(xian)(xian)(xian)路(lu)(lu)(lu)(lu)芯(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)，配(pei)保存(cun)(cun)低壓(ya)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)攬(lan)； （2）EP1K30實(shi)(shi)(shi)(shi)踐卡(ka)：Altera平(ping)(ping)(ping)臺(tai)30000門(men)FPGA集(ji)(ji)(ji)成(cheng)(cheng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)線(xian)(xian)(xian)路(lu)(lu)(lu)(lu)芯(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)，配(pei)保存(cun)(cun)低壓(ya)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)攬(lan)； （3）EP1K100實(shi)(shi)(shi)(shi)踐卡(ka)：Altera平(ping)(ping)(ping)臺(tai)100000門(men)FPGA集(ji)(ji)(ji)成(cheng)(cheng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)線(xian)(xian)(xian)路(lu)(lu)(lu)(lu)芯(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)，配(pei)保存(cun)(cun)低壓(ya)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)攬(lan)； （4）EP1C6T144實(shi)(shi)(shi)(shi)踐卡(ka)：Altera平(ping)(ping)(ping)臺(tai)150000門(men)FPGA/SOPC集(ji)(ji)(ji)成(cheng)(cheng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)線(xian)(xian)(xian)路(lu)(lu)(lu)(lu)芯(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)，帶搭配(pei)芯(xin)(xin)(xin)(xin) 片(pian)(pian)(pian)(pian)：EPCS4（4Mbits），配(pei)保存(cun)(cun)低壓(ya)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)攬(lan)。 （5）EP1C12TQ240實(shi)(shi)(shi)(shi)踐卡(ka)：Altera平(ping)(ping)(ping)臺(tai)300000門(men)FPGA/SOPC集(ji)(ji)(ji)成(cheng)(cheng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)線(xian)(xian)(xian)路(lu)(lu)(lu)(lu)芯(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)，帶搭配(pei)芯(xin)(xin)(xin)(xin) 片(pian)(pian)(pian)(pian)：EPCS4（4Mbits），配(pei)保存(cun)(cun)低壓(ya)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)攬(lan)。 （6）PAC10實(shi)(shi)(shi)(shi)踐實(shi)(shi)(shi)(shi)踐卡(ka)：Lattice平(ping)(ping)(ping)臺(tai)仿(fang)(fang)真(zhen)(zhen)虛擬(ni)仿(fang)(fang)真(zhen)(zhen)EDA集(ji)(ji)(ji)成(cheng)(cheng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)線(xian)(xian)(xian)路(lu)(lu)(lu)(lu)芯(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)，配(pei)保存(cun)(cun)低壓(ya)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)攬(lan)。 （7）PAC20實(shi)(shi)(shi)(shi)踐實(shi)(shi)(shi)(shi)踐卡(ka)：Lattice平(ping)(ping)(ping)臺(tai)仿(fang)(fang)真(zhen)(zhen)虛擬(ni)仿(fang)(fang)真(zhen)(zhen)EDA集(ji)(ji)(ji)成(cheng)(cheng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)線(xian)(xian)(xian)路(lu)(lu)(lu)(lu)芯(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)，配(pei)保存(cun)(cun)低壓(ya)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)攬(lan)。 4．2 芯(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)組芯(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)網(wang)絡設(she)備市場(chang) （1）芯(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)組芯(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)可(ke)(ke)與四種保存(cun)(cun)板相兼(jian)容性測(ce)試； （2）8位(wei)的動態掃描拍照提(ti)(ti)示(shi)(shi) 電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)線(xian)(xian)(xian)路(lu)(lu)(lu)(lu)； （3）12位(wei)發(fa)亮(liang)二(er)(er)級管提(ti)(ti)示(shi)(shi) 電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)線(xian)(xian)(xian)路(lu)(lu)(lu)(lu)； （4）8位(wei)二(er)(er)檔控(kong)制(zhi)開關(guan)(guan)按(an)鈕(niu)和電(dian)(dian)(dian)(dian)(dian)(dian)(dian)平(ping)(ping)(ping)現示(shi)(shi)燈電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)線(xian)(xian)(xian)路(lu)(lu)(lu)(lu)； （5）8位(wei)控(kong)制(zhi)鍵(jian)控(kong)制(zhi)開關(guan)(guan)按(an)鈕(niu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)線(xian)(xian)(xian)路(lu)(lu)(lu)(lu)； （6）電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子喇叭(ba)模(mo)(mo)(mo)快(kuai)(kuai)； （7）16*16 LED點(dian)陣提(ti)(ti)示(shi)(shi) 模(mo)(mo)(mo)快(kuai)(kuai)； （8）128*64 LCD的lcd信(xin)息顯示(shi)(shi)器(qi)提(ti)(ti)示(shi)(shi) 模(mo)(mo)(mo)快(kuai)(kuai)； （9）A/D 0809改變器(qi)模(mo)(mo)(mo)快(kuai)(kuai)； （10）D/A 0832改變器(qi)模(mo)(mo)(mo)快(kuai)(kuai)； （11）秒表無線(xian)(xian)(xian)信(xin)號源(yuan)(yuan)：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單面機(ji)加(jia)密(mi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)線(xian)(xian)(xian)路(lu)(lu)(lu)(lu)； （13）是(shi)其(qi)(qi)中一(yi)(yi)款 四相步進發(fa)同(tong)步電(dian)(dian)(dian)(dian)(dian)(dian)(dian)機(ji)發(fa)同(tong)步電(dian)(dian)(dian)(dian)(dian)(dian)(dian)機(ji)； （14）是(shi)其(qi)(qi)中一(yi)(yi)款 4*4小(xiao)健盤； （15）是(shi)其(qi)(qi)中一(yi)(yi)款 5V直流電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)發(fa)同(tong)步電(dian)(dian)(dian)(dian)(dian)(dian)(dian)機(ji)； （16）可(ke)(ke)配(pei)存(cun)(cun)貯器(qi)EPROM27256； （17）串(chuan)(chuan)行A/D改變TLC549； （18）串(chuan)(chuan)行D/A改變TLC5620； （19）是(shi)其(qi)(qi)中一(yi)(yi)款 RS232電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)標(biao)(biao)準(zhun)(zhun)(zhun)音(yin)頻(pin)接口(kou)標(biao)(biao)準(zhun)(zhun)(zhun)； （20）是(shi)其(qi)(qi)中一(yi)(yi)款 VGA電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)標(biao)(biao)準(zhun)(zhun)(zhun)音(yin)頻(pin)接口(kou)標(biao)(biao)準(zhun)(zhun)(zhun)； （21）是(shi)其(qi)(qi)中一(yi)(yi)款 PS/2（健盤、鍵(jian)盤）電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)標(biao)(biao)準(zhun)(zhun)(zhun)音(yin)頻(pin)接口(kou)標(biao)(biao)準(zhun)(zhun)(zhun)； （22）仿(fang)(fang)真(zhen)(zhen)虛擬(ni)仿(fang)(fang)真(zhen)(zhen)可(ke)(ke)代碼集(ji)(ji)(ji)成(cheng)(cheng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)線(xian)(xian)(xian)路(lu)(lu)(lu)(lu)芯(xin)(xin)(xin)(xin)片(pian)(pian)(pian)(pian)加(jia)密(mi)模(mo)(mo)(mo)快(kuai)(kuai)（PAC10、PAC20、PAC80）；(選(xuan)裝(zhuang)) （23）正弦(xian)波形引發(fa)器(qi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)線(xian)(xian)(xian)路(lu)(lu)(lu)(lu) （24）電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子實(shi)(shi)(shi)(shi)踐仿(fang)(fang)真(zhen)(zhen)虛擬(ni)仿(fang)(fang)真(zhen)(zhen)驗示(shi)(shi)安裝(zhuang)模(mo)(mo)(mo)快(kuai)(kuai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)線(xian)(xian)(xian)路(lu)(lu)(lu)(lu)； （25）要選(xuan)裝(zhuang)加(jia)密(mi)極(ji)速A/D、D/A改變模(mo)(mo)(mo)快(kuai)(kuai)；（26）要選(xuan)裝(zhuang)加(jia)密(mi)USB電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)標(biao)(biao)準(zhun)(zhun)(zhun)音(yin)頻(pin)接口(kou)標(biao)(biao)準(zhun)(zhun)(zhun)加(jia)密(mi)模(mo)(mo)(mo)快(kuai)(kuai)；

5、日均單激光脈沖(chong)：每撥多次鈕子按鈕輸(shu)出(chu)電壓(ya)成對正負極單激光脈沖(chong)。

6、外測交電(dian)流(liu)二工程用電(dian)流(liu)表：可靠性(xing)強，精密度0.5級，多位半自然數式凸顯，估測依(yi)據：0－999mA。

7、外測交直流(liu)電源電二耗電壓表(biao)(biao)：精確0.5級(ji)，幾位半號(hao)碼表(biao)(biao)示(shi)，量測超范圍：0－99V。