Planimeter - Types of planimeter, Advantages & disadvantages, Characteristics, Components and functions, Procedure, Working principle
What is planimeter in surveying? A planimeter is a mechanical device that is used to measure the area of an irregularly shaped two-dimensional object. It consists of a flat plate that is connected to a measuring wheel by a linkage arm. To use a planimeter, the plate is placed on the surface to be measured and the measuring wheel is moved around the perimeter of the object. As the wheel rotates, the linkage arm transfers the measurement to a scale on the planimeter that indicates the area of the object in square units. Planimeters are commonly used in fields such as surveying, engineering, and architecture to measure land areas, floor plans, and other geometric shapes. Types of planimeter: - There are three main types of planimeters: 1. Amsler polar Planimeter - Also known as the linear planimeter, this type of planimeter measures the area enclosed by a curve. It consists of three main parts - the tracer arm, the measuring wheel, and the fixed reference point. The tracer arm follows th