What is Philadelphia genus?

A pair of Philadelphia is a type of leveling rod used by inspectors. Made of metal or wood consists of two sections, each of which was measured in specific gradients. Both sections are arranged side by side and are connected together at one point with a small metal sleeve that can slip the pieces. This makes it possible to use Philadelphia for larger or smaller extensions, allowing its function in a wide range of terrain types and at shorter and longer distances. The ability to extend and insert, which also facilitates transport, is the reason why many consider the genus Philadelphia the most popular pole balanced survey. For an accurate survey, the survey team needs a fixed point of Obernation, a balancing survey that held up vertically at the second point and reading devices, similar to a telescope combined with a level with which the inspector can on the spot from the first fixed point to the leveling rod.

konsPhiladelphia wooden rods often use maple painted white with black numerals and gradations. Philadelphia metal rods are often made of aluminum with grades of embossed and painted black. It is traditional to have a brass sleeve through which both sections can slide. In both types of rod construction, extremes of heat or cold can cause metal or wood to expand or withdraw and can affect the accuracy of deductions.

Philadelphia Rods use metric or American standard measuring systems. If the metric is, the rod is graded in meters and centimeters, with a bold mark on each 10th place of the meter. If it is measured in the legs, Zdiladelphia Gored is deleted100. Segments of the foot with a bold mark for every 10/100. Stop. The Philadelphia standard rod has two sections of 7 feet (2,134 meters) and can be used at a height of 13 feet (3.96 meters).

Philadelphia Rod enhancement includes removable sorted facial boards. Extensive use over time can wear and blur numbers andgradation. Removable facial boards can be replaced as needed to make it visible.