guangdianbianmaqi,shiyizhongtongguoguangdianzhuanhuanjiangshuchuzhoushangdejixiejiheweiyiliangzhuanhuanchengmaichonghuoshuziliangdechuanganqi。zheshimuqianyingyongduodechuanganqi,guangdianbianmaqishiyouguangzhapanheguangdianjiancezhuangzhizucheng。
(一)增量式編碼器
增量式編碼器是直接利用光電轉換原理輸出三組方波脈衝A、B和Z相;A、B兩組脈衝相位差90o,從而可方便地判斷出旋轉方向,而Zxiangweimeizhuanyigemaichong,yongyujizhundiandingwei。tadeyoudianshiyuanligouzaojiandan,jixiepingjunshoumingkezaijiwanxiaoshiyishang,kangganraonengliqiang,kekaoxinggao,shiheyuchangjulichuanshu。qiquedianshiwufashuchuzhouzhuandongdejueduiweizhixinxi。
(二)絕對式編碼器
絕(jue)對(dui)編(bian)碼(ma)器(qi)是(shi)直(zhi)接(jie)輸(shu)出(chu)數(shu)字(zi)量(liang)的(de)傳(chuan)感(gan)器(qi),在(zai)它(ta)的(de)圓(yuan)形(xing)碼(ma)盤(pan)上(shang)沿(yan)徑(jing)向(xiang)有(you)若(ruo)幹(gan)同(tong)心(xin)碼(ma)道(dao),每(mei)條(tiao)道(dao)上(shang)由(you)透(tou)光(guang)和(he)不(bu)透(tou)光(guang)的(de)扇(shan)形(xing)區(qu)相(xiang)間(jian)組(zu)成(cheng),相(xiang)鄰(lin)碼(ma)道(dao)的(de)扇(shan)區(qu)數(shu)目(mu)是(shi)雙(shuang)倍(bei)關(guan)係(xi),碼(ma)盤(pan)上(shang)的(de)碼(ma)道(dao)數(shu)就(jiu)是(shi)它(ta)的(de)二(er)進(jin)製(zhi)數(shu)碼(ma)的(de)位(wei)數(shu),在(zai)碼(ma)盤(pan)的(de)一(yi)側(ce)是(shi)光(guang)源(yuan),另(ling)一(yi)側(ce)對(dui)應(ying)每(mei)一(yi)碼(ma)道(dao)有(you)一(yi)光(guang)敏(min)元(yuan)件(jian);dangmapanchuyubutongweizhishi,geguangminyuanjiangenjushouguangzhaoyufouzhuanhuanchuxiangyingdedianpingxinhao,xingchengerjinzhishu。zhezhongbianmaqidetedianshibuyaojishuqi,zaizhuanzhouderenyiweizhidoukeduchuyigegudingdeyuweizhixiangduiyingdeshuzima。xianran,madaoyueduo,fenbianlvjiuyuegao,duiyuyigejuyou N位二進製分辨率的編碼器,其碼盤必須有N條碼道。目前國內已有16位(wei)的(de)絕(jue)對(dui)編(bian)碼(ma)器(qi)產(chan)品(pin)。絕(jue)對(dui)式(shi)編(bian)碼(ma)器(qi)是(shi)利(li)用(yong)自(zi)然(ran)二(er)進(jin)製(zhi)或(huo)循(xun)環(huan)二(er)進(jin)製(zhi)方(fang)式(shi)進(jin)行(xing)光(guang)電(dian)轉(zhuan)換(huan)的(de)。絕(jue)對(dui)式(shi)編(bian)碼(ma)器(qi)與(yu)增(zeng)量(liang)式(shi)編(bian)碼(ma)器(qi)不(bu)同(tong)之(zhi)處(chu)在(zai)於(yu)圓(yuan)盤(pan)上(shang)透(tou)光(guang)、不透光的線條圖形,絕對編碼器可有若幹編碼,根據讀出碼盤上的編碼,檢測絕對位置。編碼的設計可采用二進製碼、循環碼、二進製補碼等。
標簽:編碼器
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