【經(jing)緯儀軸線】經(jing)緯儀有哪些主要軸線 經(jing)緯儀主要軸線介紹

經緯(wei)儀(yi)主要軸線(xian)介紹(shao)

一、 經緯儀有哪些軸

經緯儀主要有：豎軸、橫軸、望遠鏡視準(zhun)軸、和照(zhao)準(zhun)水準(zhun)管軸。

二、應滿足條件

經(jing)緯儀(yi)是根據水(shui)(shui)(shui)平(ping)角(jiao)(jiao)和豎(shu)(shu)直(zhi)(zhi)(zhi)角(jiao)(jiao)的測角(jiao)(jiao)原理(li)制造的，當水(shui)(shui)(shui)準管器(qi)泡居中時，儀(yi)器(qi)旋轉軸(zhou)(zhou)(zhou)豎(shu)(shu)直(zhi)(zhi)(zhi)、水(shui)(shui)(shui)平(ping)度盤水(shui)(shui)(shui)平(ping)，則要(yao)(yao)求(qiu)水(shui)(shui)(shui)準管軸(zhou)(zhou)(zhou)垂(chui)直(zhi)(zhi)(zhi)豎(shu)(shu)軸(zhou)(zhou)(zhou)。測水(shui)(shui)(shui)平(ping)角(jiao)(jiao)要(yao)(yao)求(qiu)望(wang)遠鏡繞橫(heng)(heng)(heng)(heng)軸(zhou)(zhou)(zhou)旋轉為一(yi)個豎(shu)(shu)直(zhi)(zhi)(zhi)面，就必(bi)須(xu)保(bao)證視準軸(zhou)(zhou)(zhou)垂(chui)直(zhi)(zhi)(zhi)橫(heng)(heng)(heng)(heng)軸(zhou)(zhou)(zhou)。另一(yi)點保(bao)證豎(shu)(shu)軸(zhou)(zhou)(zhou)豎(shu)(shu)直(zhi)(zhi)(zhi)時，橫(heng)(heng)(heng)(heng)軸(zhou)(zhou)(zhou)水(shui)(shui)(shui)平(ping)，則要(yao)(yao)求(qiu)橫(heng)(heng)(heng)(heng)軸(zhou)(zhou)(zhou)垂(chui)直(zhi)(zhi)(zhi)豎(shu)(shu)軸(zhou)(zhou)(zhou)。照(zhao)準目標(biao)使用豎(shu)(shu)絲，只有橫(heng)(heng)(heng)(heng)軸(zhou)(zhou)(zhou)水(shui)(shui)(shui)平(ping)時豎(shu)(shu)絲豎(shu)(shu)直(zhi)(zhi)(zhi)，則要(yao)(yao)求(qiu)十字絲豎(shu)(shu)絲垂(chui)直(zhi)(zhi)(zhi)橫(heng)(heng)(heng)(heng)軸(zhou)(zhou)(zhou)。為使測角(jiao)(jiao)達(da)到一(yi)定(ding)精度，儀(yi)器(qi)其它狀(zhuang)態也應(ying)達(da)到一(yi)定(ding)標(biao)準。綜(zong)上所述，經(jing)緯儀(yi)應(ying)滿(man)足的基(ji)本幾(ji)何關系如圖所示(shi)：

1、照準部水準管軸應垂直于豎(shu)軸；LL⊥VV

2、十字絲(si)豎絲(si)應垂直于(yu)橫軸；

3、視(shi)準(zhun)軸(zhou)應垂直于橫軸(zhou)；CC⊥HH

4、橫軸應垂直于豎(shu)軸；HH⊥VV

5、豎盤指標應處(chu)于正(zheng)確位置；

6、光學對中(zhong)器(qi)視(shi)準軸應該與豎軸中(zhong)心線(xian)重合。