Classification of Vernier (With Diagram)| Theodolite Surveying | Surveying
After reading this article you will learn about the direct vernier and retrograde vernier . 1. Direct Vernier: Principle: If it is required to read 1/nth part of the smallest division on the main scale, (n-1) main divisions are taken and divided into n equal divisions on the vernier scale as shown in Fig. 9.2. Here 9 divisions on the [...]