Each type of theodolite is peculiar in its construction and mode of operation. However, inherent fundamentals of all are same. In this course, the details will be considered for vernier type theodolite which is most popular and is being widely used. The salient parts of a vernier theodolite have been discussed below (Figure 20.4).
- Leveling Head
- Shifting Head
- Lower Plate
- Upper Plate
- Plate Levels
- Standard (or a Frame)
- Vernier Frame
- Telescope
- Vertical Circle
- Altitude Bubble
- Screws
- Tripod Stand
