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四、最新的发展 1.游标式编码测角技术微电子技术落后的苏联在82年研制成一种TT_(11)型编码经纬仪,该仪器在体积、重量、精度上同西方最新的电子经纬仪十分接近,而且除具有测量结果数字显示功能外,同样也可自动记录、存储。但结构结简、制造容易、成本低廉。 TT_(11)型编码经纬仪成功的关键在于:它应用了一种游标式编码度盘和光楔测微尺式的光电脉冲扫描计数装置。首先,这种编码度盘只有三圈400条左右刻线组成的编码,本文前面提到编码度盘一般码道达十多圈,就是最新的美国H.P公司的3820A电子经纬仪的度盘也要
Fourth, the latest development 1. Vernier code angle measurement technology Microelectronics technology behind the Soviet Union in 82 developed a TT_ (11) type coding theodolite, the instrument in terms of volume, weight, accuracy with the latest electronic theodolite in the West is very close , But also with the digital display measurement results, the same can also be automatically recorded, stored. But the structure knot, easy to manufacture, low cost. The key to the success of the TT_ (11) coded theodolite lies in its application of a cursor-type encoder and optical wedge micrometer-scale photoelectric pulse scanning and counting device. First of all, this code plate only three laps about 400 engraved line coding, the code mentioned earlier in this article code plate up to a dozen laps, is the latest US H.P 3828 electronic theodolite dial