EITRA編碼器EH53A1024Z5L10X6PRN翊霈供應
發布日期:2023-12-20
簡要描述:
電(dian)(dian)流(liu)(liu)(liu)(liu)(liu)表是根(gen)據(ju)通(tong)(tong)電(dian)(dian)導體在(zai)磁(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)(chang)中(zhong)受磁(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)(chang)力的(de)作(zuo)用(yong)而(er)(er)制成的(de)。電(dian)(dian)流(liu)(liu)(liu)(liu)(liu)表內(nei)部(bu)有(you)(you)一(yi)(yi)(yi)永(yong)磁(ci)(ci)(ci)(ci)(ci)(ci)體,在(zai)極間(jian)產(chan)生(sheng)磁(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)(chang),在(zai)磁(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)(chang)中(zhong)有(you)(you)一(yi)(yi)(yi)個(ge)(ge)(ge)(ge)線(xian)(xian)圈(quan),線(xian)(xian)圈(quan)兩(liang)端(duan)(duan)(duan)各有(you)(you)一(yi)(yi)(yi)個(ge)(ge)(ge)(ge)游絲彈(dan)(dan)簧(huang)(huang),彈(dan)(dan)簧(huang)(huang)各連接(jie)(jie)(jie)電(dian)(dian)流(liu)(liu)(liu)(liu)(liu)表的(de)一(yi)(yi)(yi)個(ge)(ge)(ge)(ge)接(jie)(jie)(jie)線(xian)(xian)柱(zhu)(zhu),在(zai)彈(dan)(dan)簧(huang)(huang)與(yu)(yu)線(xian)(xian)圈(quan)間(jian)由(you)(you)一(yi)(yi)(yi)個(ge)(ge)(ge)(ge)轉(zhuan)軸連接(jie)(jie)(jie),在(zai)轉(zhuan)軸相(xiang)(xiang)(xiang)對(dui)于電(dian)(dian)流(liu)(liu)(liu)(liu)(liu)表的(de)前(qian)端(duan)(duan)(duan),有(you)(you)一(yi)(yi)(yi)個(ge)(ge)(ge)(ge)指針(zhen)。當有(you)(you)電(dian)(dian)流(liu)(liu)(liu)(liu)(liu)通(tong)(tong)過時,電(dian)(dian)流(liu)(liu)(liu)(liu)(liu)沿彈(dan)(dan)簧(huang)(huang)、轉(zhuan)軸通(tong)(tong)過磁(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)(chang),電(dian)(dian)流(liu)(liu)(liu)(liu)(liu)切磁(ci)(ci)(ci)(ci)(ci)(ci)感線(xian)(xian),所(suo)以(yi)受磁(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)(chang)力的(de)作(zuo)用(yong),使線(xian)(xian)圈(quan)發生(sheng)偏(pian)(pian)轉(zhuan),帶動(dong)轉(zhuan)軸、指針(zhen)偏(pian)(pian)轉(zhuan)。由(you)(you)于磁(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)(chang)力的(de)大(da)小(xiao)隨(sui)電(dian)(dian)流(liu)(liu)(liu)(liu)(liu)增大(da)而(er)(er)增大(da),所(suo)以(yi)就可以(yi)通(tong)(tong)過指針(zhen)的(de)偏(pian)(pian)轉(zhuan)程度(du)來(lai)觀(guan)察電(dian)(dian)流(liu)(liu)(liu)(liu)(liu)的(de)大(da)小(xiao)。這叫(jiao)磁(ci)(ci)(ci)(ci)(ci)(ci)電(dian)(dian)式(shi)電(dian)(dian)流(liu)(liu)(liu)(liu)(liu)表,就是我們(men)平時實驗室里用(yong)的(de)那(nei)種。在(zai)初中(zhong)時期,所(suo)用(yong)電(dian)(dian)流(liu)(liu)(liu)(liu)(liu)表量(liang)(liang)程一(yi)(yi)(yi)般為(wei)(wei)0~0.6A和(he)0~3A數(shu)(shu)(shu)(shu)顯(xian)電(dian)(dian)流(liu)(liu)(liu)(liu)(liu)表分為(wei)(wei)單(dan)(dan)相(xiang)(xiang)(xiang)數(shu)(shu)(shu)(shu)顯(xian)電(dian)(dian)流(liu)(liu)(liu)(liu)(liu)表和(he)三(san)相(xiang)(xiang)(xiang)數(shu)(shu)(shu)(shu)顯(xian)電(dian)(dian)流(liu)(liu)(liu)(liu)(liu)表,該表具有(you)(you)變送、LED(或(huo)(huo)LCD)顯(xian)示和(he)數(shu)(shu)(shu)(shu)字接(jie)(jie)(jie)口等功能,通(tong)(tong)過對(dui)電(dian)(dian)網中(zhong)各參量(liang)(liang)的(de)交流(liu)(liu)(liu)(liu)(liu)采樣,以(yi)數(shu)(shu)(shu)(shu)字形式(shi)顯(xian)示測量(liang)(liang)結果(guo)。經CPU進(jin)行數(shu)(shu)(shu)(shu)據(ju)處理(li).將三(san)相(xiang)(xiang)(xiang)(或(huo)(huo)單(dan)(dan)相(xiang)(xiang)(xiang))電(dian)(dian)流(liu)(liu)(liu)(liu)(liu)、電(dian)(dian)壓、功率(lv)、功率(lv)因數(shu)(shu)(shu)(shu)、頻率(lv)等電(dian)(dian)參量(liang)(liang)由(you)(you)LED(或(huo)(huo)液晶(jing))直接(jie)(jie)(jie)顯(xian)示,同時輸(shu)出0~5V、0—20mA或(huo)(huo)4—20mA相(xiang)(xiang)(xiang)應的(de)模擬電(dian)(dian)量(liang)(liang),與(yu)(yu)遠動(dong)裝置RTU相(xiang)(xiang)(xiang)連;并帶有(you)(you)RS--232或(huo)(huo)485接(jie)(jie)(jie)口。電(dian)(dian)流(liu)(liu)(liu)(liu)(liu)表是根(gen)據(ju)通(tong)(tong)電(dian)(dian)導體在(zai)磁(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)(chang)中(zhong)受磁(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)(chang)力的(de)作(zuo)用(yong)而(er)(er)制成的(de)。電(dian)(dian)流(liu)(liu)(liu)(liu)(liu)表內(nei)部(bu)有(you)(you)一(yi)(yi)(yi)永(yong)磁(ci)(ci)(ci)(ci)(ci)(ci)體,在(zai)極間(jian)產(chan)生(sheng)磁(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)(chang),在(zai)磁(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)(chang)中(zhong)有(you)(you)一(yi)(yi)(yi)個(ge)(ge)(ge)(ge)線(xian)(xian)圈(quan),線(xian)(xian)圈(quan)兩(liang)端(duan)(duan)(duan)各有(you)(you)一(yi)(yi)(yi)個(ge)(ge)(ge)(ge)游絲彈(dan)(dan)簧(huang)(huang),彈(dan)(dan)簧(huang)(huang)各連接(jie)(jie)(jie)電(dian)(dian)流(liu)(liu)(liu)(liu)(liu)表的(de)一(yi)(yi)(yi)個(ge)(ge)(ge)(ge)接(jie)(jie)(jie)線(xian)(xian)柱(zhu)(zhu),在(zai)彈(dan)(dan)簧(huang)(huang)與(yu)(yu)線(xian)(xian)圈(quan)間(jian)由(you)(you)一(yi)(yi)(yi)個(ge)(ge)(ge)(ge)轉(zhuan)軸連接(jie)(jie)(jie),在(zai)轉(zhuan)軸相(xiang)(xiang)(xiang)對(dui)于電(dian)(dian)流(liu)(liu)(liu)(liu)(liu)表的(de)前(qian)端(duan)(duan)(duan),有(you)(you)一(yi)(yi)(yi)個(ge)(ge)(ge)(ge)指針(zhen)。指針(zhen)偏(pian)(pian)轉(zhuan)。由(you)(you)于磁(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)(chang)力的(de)大(da)小(xiao)隨(sui)電(dian)(dian)流(liu)(liu)(liu)(liu)(liu)增大(da)而(er)(er)增大(da),所(suo)以(yi)就可以(yi)通(tong)(tong)過指針(zhen)的(de)偏(pian)(pian)轉(zhuan)程度(du)來(lai)觀(guan)察電(dian)(dian)流(liu)(liu)(liu)(liu)(liu)的(de)大(da)小(xiao)。
編碼器(encoder)是將信號(如比特流)或數據進行編制、轉換為可用以通訊、傳輸和存儲的信號形式的設備。編碼器把角位移或直線位移轉換成電信號,前者稱為碼盤,后者稱為碼尺。按照讀出方式編碼器可以分為接觸式和非接觸式兩種;
由一個中心有軸的光電碼盤,其上有環形通、暗的刻線,有光電發射和接收器件讀取,獲得四組正弦波信號組合成A、B、C、D,每個正弦波相差90度相位差(相對于一個周波為360度),將C、D信號反向,疊加在A、B兩相上,可增強穩定信號;另每轉輸出一個Z相脈沖以代表零位參考位。
由于(yu)A、B兩相(xiang)相(xiang)差(cha)(cha)90度(du),可通(tong)過比較A相(xiang)在(zai)前(qian)還是(shi)(shi)B相(xiang)在(zai)前(qian),以判別編碼器(qi)的(de)(de)正轉(zhuan)與反轉(zhuan),通(tong)過零位脈沖(chong),可獲(huo)得編碼器(qi)的(de)(de)零位參考位。編碼器(qi)碼盤(pan)(pan)的(de)(de)材料有(you)玻璃(li)、金屬、塑(su)料,玻璃(li)碼盤(pan)(pan)是(shi)(shi)在(zai)玻璃(li)上沉積(ji)很薄的(de)(de)刻線,其(qi)熱(re)穩(wen)定性好(hao),精度(du)高(gao),金屬碼盤(pan)(pan)直(zhi)接以通(tong)和不(bu)通(tong)刻線,不(bu)易碎,但由于(yu)金屬有(you)一(yi)(yi)定的(de)(de)厚度(du),精度(du)就有(you)限制,其(qi)熱(re)穩(wen)定性就要(yao)比玻璃(li)的(de)(de)差(cha)(cha)一(yi)(yi)個數(shu)量級,塑(su)料碼盤(pan)(pan)是(shi)(shi)經濟型的(de)(de),其(qi)成本低,但精度(du)、熱(re)穩(wen)定性、壽(shou)命均要(yao)差(cha)(cha)一(yi)(yi)些。
絕緣(yuan)耐電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)測(ce)試(shi)儀(yi)又叫電(dian)(dian)(dian)(dian)氣(qi)絕緣(yuan)強度試(shi)驗儀(yi)或(huo)叫介質(zhi)強度測(ce)試(shi)儀(yi)。將(jiang)一(yi)(yi)規定(ding)(ding)交流或(huo)直流高(gao)壓(ya)(ya)(ya)施加在(zai)電(dian)(dian)(dian)(dian)器(qi)帶電(dian)(dian)(dian)(dian)部(bu)(bu)分和非帶電(dian)(dian)(dian)(dian)部(bu)(bu)分(一(yi)(yi)般(ban)為(wei)外(wai)殼)之間(jian)以(yi)檢查電(dian)(dian)(dian)(dian)器(qi)的(de)絕緣(yuan)材料(liao)所能(neng)(neng)承受耐壓(ya)(ya)(ya)能(neng)(neng)力的(de)試(shi)驗。電(dian)(dian)(dian)(dian)器(qi)在(zai)長期(qi)工(gong)(gong)作(zuo)(zuo)中,不僅(jin)要(yao)承受規定(ding)(ding)的(de)工(gong)(gong)作(zuo)(zuo)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)的(de)作(zuo)(zuo)用,還要(yao)承受操作(zuo)(zuo)過(guo)程中引起(qi)短時間(jian)的(de)高(gao)于額定(ding)(ding)工(gong)(gong)作(zuo)(zuo)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)的(de)過(guo)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(過(guo)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)值可能(neng)(neng)會高(gao)于額定(ding)(ding)工(gong)(gong)作(zuo)(zuo)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)值的(de)好幾倍)。在(zai)這些電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)的(de)作(zuo)(zuo)用下(xia),電(dian)(dian)(dian)(dian)氣(qi)絕緣(yuan)材料(liao)的(de)內部(bu)(bu)結構將(jiang)發(fa)生變化(hua)。當過(guo)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)強度達到某(mou)一(yi)(yi)定(ding)(ding)值時,就會使材料(liao)的(de)絕緣(yuan)擊穿,電(dian)(dian)(dian)(dian)器(qi)將(jiang)不能(neng)(neng)正(zheng)常運行,操作(zuo)(zuo)者(zhe)就可能(neng)(neng)觸(chu)電(dian)(dian)(dian)(dian),危(wei)及人身安全。
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EITRA編碼器EH53A1024Z5L10X6PRN翊霈供應
EITRA編碼器EH53A1024Z5L10X6PRN翊霈供應