Techometry surve

 Techometery survey

"immediate action" from the Greek), relative to other points on the Earth's surface, both horizontal and vertical positions without using a chain or tape are determined by the speed surveying is a system, or to a separate device.

Beautiful earth stood clear of obstructions and is not a theodolite, chain, and applying common methods of surveying tools are fairly satisfactory, but the ground is covered with bush, or once it is broken by ravines becomes extremely cumbersome. The slow and responsible enough range measurement error, leveling, too, though without serious loss of accuracy, speed is great harm in point.

Employed to mark a point in which, instead tacheometry Pole led to the introduction of these difficulties, a level similar to that of the staff used a staff. It is marked with foot heights, and the certificate in the form of tacheometer. As the previous azimuth angle is determined. Two staff well-defined points on the horizontal distance and the distance between them was known vertical angle, or a telescope diaphragm (reticle) i by two permanent stadium wires indicated by readings of staff or so is inferred. Height difference staff already achieved a certain point and the horizontal distance from depression or elevation angle is calculated. All measurements tacheometer staff to hold such a man without any help after the device are determined by an observer is the center point of where to find a point in both vertical and horizontal necessary.

Professional measurement nowadays usually done using total stations and data collectors are recorded using as Western countries, tacheometry, mainly historical interest in the survey. The location using GNSS positions are determined. Traditional methods and tools used in many areas of the world and mainly by users who are not Surveyors are still.