Total Station

Angle measurement 

Angle measurement Most modern total station instruments measure angles by means of electro-optical scanning of extremely precise digital bar-codes etched on rotating glass cylinders or discs within the instrument. The best quality total stations are capable of measuring angles to 0.5 arc-second. Inexpensive "construction grade" total stations can generally measure angles to 5 or 10 arc-seconds.

Measure the distance 

Measure the distance Main article: distance measurement 

Tool to measure distances within a small solid-state optical path created by a Modulated Emitter microwave or infrared carrier signal, complete with, and a PRISM reflector or reflected by the object under study is . Modulation

pattern in the returning signal is read and interpreted by the station's computer. Distance emitting and receiving multiple frequencies, and each frequency numerical target for determining the number of wavelength is determined by. The most EDM total stations to signal the use of purpose-built glass corner cube prism reflectors. A typical total station up to 1,500 meters (4,900 feet) at a distance of about 1.5 mm per million (0.0049 ft) + 2 parts can measure distances with accuracy. [2]
reflectorless total stations a few hundred meters, reasonably light in color that can measure the distance to any object.

Coordinate measuring 

کچھ کل اسٹیشنوں پر جب تک نظر کی ایک براہ راست لائن کے دو پوائنٹس کے درمیان قائم کیا جا سکتا ہے کے طور پر کل اسٹیشن کا استعمال کرتے ہوئے مقرر کیا جا سکتا محدد جانا جاتا ہے ایک کے رشتہ دار ایک نامعلوم نقطہ کے نقاط کی پیمائش only. Angles and distances measured from the total station to points under survey, and total station survey points relative to the position coordinates (X, Y, and Z or easting, northing and elevation) calculated using trigonometry and triangulation are.کل اسٹیشن نظر مشاہدے کی لائن کی ضرورت ہے اور ایک معین نقطہ پر یا کے نام سے جانا جاتا کے محل وقوع کے ساتھ 2 یا اس سے زیادہ پوائنٹس تک نظر کی لائن کے ساتھ قائم ہو جائے ضروری ایک مطلق محل وقوع کا تعین کرنے کے. [3]
For this reason, some total stations also have a Global Navigation Satellite System receiver to determine coordinates do not have a direct line of sight. However, GNSS measurements require long periods of possession and the vertical axis may offer relatively poor accuracy. [3]

Data Processing 

Data processing Other models, such as a hand-held computer, these measurements to an external data collector, while
some models are equipped to write, record distance internal electronic data storage, horizontal angle, and vertical angle are measured.
Data downloaded to a computer when a total station, survey software map of the area and the number of results can be used to create. The new generation of total stations measure the points on the map can show the device's touch screen.