Linear Measurement Instruments :
surveying can be performed in different methods they are direct method, electromagnetic methods and optical methods.
1. Tapes - are used in surveying to measure horizontal, vertical, and slope distances
and are of two types - Fiber and Steel at Different sizes like- 3M-5M-15M-30M
2. Passometer.: instrument is like a watch that is carried on the person's pocket
3. Pedometers : Instrument to measure the number of steps and provide an estimate of
distance walked
4. Survey Chains :are commonly used to directly measure the linear distance between two
points on earth's surface. Types of Survey Chains: Metric, Steel Band, Gunter's,
Engineers and Revenue Chain.
5. Compass : Used to find direction and Location , Where as Prismatic compass is used to find out
Bearings of the traversing and included angles between them. Brunton compass used in
Geological Applications. Types of Compass used for survey purpose are Surveyors
Compass, Prismatic Compass, Brinton Compass
6. Cross Staff : Used to mark a straight line and 90 degree while moving with a offset road there are Open,
French and Adjustable cross staffs.
7. Ranging Rod : Straight Rods in 2 to 5 M Length used in the field to mark straight Lines and Are
calculation in a survey work.
