KEYBOARD AND DISPLAY
A total station is activated
through its control panel, which consists of a keyboard and multiple line LCD.
A number of instruments have two control panels, one on each face, which makes
them easier to use.
In addition to controlling the
total station, the keyboard is often used to code data generated by the
instrument - this code will be used to identify the
object being measured.
On some total stations it is possible to detach
the keyboard and interchange them with other total stations and with GPS
receivers.This is called integrated surveying .
SOFTWARE APPLICATIONS
The microprocessor built into the
total station is a small computer and its main function is controlling the
measurement of angles and distances. The LCD screen guides the operator while
taking these measurements.
The built in computer can be used
for the operator to carry out calibration checks on the instrument.
The software applications available on many total stations
include the following:
Slope corrections and reduced levels
Horizontal circle orientation
Coordinate measurement
Traverse measurements
Resection (or free stationing)
Missing line measurement
Remote elevation measurement
areas
Setting out.
Although all
manufacturers quote ranges of several kilometres to a single prism.
For
those construction projects where long distances are required to be measured,
GPS methods are used in preference to total stations. There is no standard
difference at which the change from one to the other occurs, as this will
depend on a number of factors, including the accuracy required and the site
topography.
Rapid
measurement reduces the measurement time to a prism to between 0.5 and 1's for both phase
shift and pulsed systems, but the accuracy for both may degrade slightly.
Tracking
measurements are taken
extensively when setting out or for machine control, since readings are
updated very quickly and vary in response to movements of the prism which is
usually pole-mounted.In this mode, the distance measurement is repeated
automatically at intervals of less than 0.5s.
For
reflector less measurements taken with a phase shift system, the range that can
be obtained is about 100m, with a similar accuracy to that obtained when using
a prism or foil.
Privacy Policy, Terms and Conditions, DMCA Policy and Compliant
Copyright © 2018-2023 BrainKart.com; All Rights Reserved. Developed by Therithal info, Chennai.