Traditional Culture Encyclopedia - Traditional culture - How much is a theodolite?
How much is a theodolite?
Domestic optical theodolite is generally within 3000 seconds, and there are 1002 factory, Beijing Bofei, Nanjing Daily Chemical; Domestic optical theodolite is within 2 seconds 10000, with Suzhou Yiguang, Beijing Bofei and laser beam.
The domestic electronic theodolite takes about 3,500 seconds, and there are many brands such as Suzhou Yiguang, Bofei, Nanfang, Kelida, Ruide, Sanding, Dida, Zhonghaida, Ou Bo, Serra, Socaya and so on. Domestic laser electronic theodolite takes about 5000 seconds.
Theodolite classification
Accuracy is divided into precision theodolite and ordinary theodolite; According to the reading equipment can be divided into optical theodolite and vernier theodolite; According to the shafting structure, it can be divided into retest theodolite and direction theodolite. In addition, there is a coded dial theodolite, which can automatically record dial readings according to coded perforations; An automatic tracking theodolite capable of continuously and automatically aiming at air targets.
Gyro theodolite and laser theodolite that can determine the orientation of ground points quickly and independently by using gyro orientation principle; Universal theodolite for astronomical observation with three functions: theodolite, meridian instrument and zenith instrument; Phototheodolite, who combined the camera and theodolite for ground photogrammetry.
Refer to the above? Baidu encyclopedia-theodolite
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