【經緯儀軸(zhou)線(xian)(xian)】經緯儀有哪些主(zhu)要軸(zhou)線(xian)(xian) 經緯儀主(zhu)要軸(zhou)線(xian)(xian)介紹

經緯儀(yi)主要軸線介紹

一、 經緯儀有哪些軸

經緯儀主要(yao)有：豎軸(zhou)、橫軸(zhou)、望遠鏡(jing)視準軸(zhou)、和照準水(shui)準管(guan)軸(zhou)。

二、應滿足條件

經(jing)緯儀(yi)是根據水(shui)(shui)(shui)(shui)平(ping)角(jiao)和豎(shu)(shu)(shu)(shu)直(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)角(jiao)的(de)測角(jiao)原理制造的(de)，當水(shui)(shui)(shui)(shui)準管器(qi)泡(pao)居(ju)中時(shi)，儀(yi)器(qi)旋(xuan)轉軸(zhou)豎(shu)(shu)(shu)(shu)直(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)、水(shui)(shui)(shui)(shui)平(ping)度盤水(shui)(shui)(shui)(shui)平(ping)，則要(yao)求水(shui)(shui)(shui)(shui)準管軸(zhou)垂(chui)直(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)豎(shu)(shu)(shu)(shu)軸(zhou)。測水(shui)(shui)(shui)(shui)平(ping)角(jiao)要(yao)求望(wang)遠(yuan)鏡繞(rao)橫(heng)軸(zhou)旋(xuan)轉為(wei)一個豎(shu)(shu)(shu)(shu)直(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)面，就必(bi)須保證視準軸(zhou)垂(chui)直(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)橫(heng)軸(zhou)。另一點(dian)保證豎(shu)(shu)(shu)(shu)軸(zhou)豎(shu)(shu)(shu)(shu)直(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)時(shi)，橫(heng)軸(zhou)水(shui)(shui)(shui)(shui)平(ping)，則要(yao)求橫(heng)軸(zhou)垂(chui)直(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)豎(shu)(shu)(shu)(shu)軸(zhou)。照準目(mu)標使用豎(shu)(shu)(shu)(shu)絲(si)，只有橫(heng)軸(zhou)水(shui)(shui)(shui)(shui)平(ping)時(shi)豎(shu)(shu)(shu)(shu)絲(si)豎(shu)(shu)(shu)(shu)直(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)，則要(yao)求十字(zi)絲(si)豎(shu)(shu)(shu)(shu)絲(si)垂(chui)直(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)橫(heng)軸(zhou)。為(wei)使測角(jiao)達到一定精度，儀(yi)器(qi)其(qi)它狀態(tai)也(ye)應達到一定標準。綜上(shang)所述，經(jing)緯儀(yi)應滿足(zu)的(de)基本幾何(he)關系如圖所示：

1、照準(zhun)部水準(zhun)管軸應垂直(zhi)于豎軸；LL⊥VV

2、十字絲豎絲應垂直于橫軸；

3、視準軸應垂直于橫軸；CC⊥HH

4、橫軸應垂直于(yu)豎(shu)軸；HH⊥VV

5、豎盤(pan)指標應處于(yu)正確位置(zhi)；

6、光(guang)學對中(zhong)器視準(zhun)軸應該與豎軸中(zhong)心線重合。