User guide

Trimble M3 Total Station User Guide 153
Glossary
.28 Glossary of terms
This glossary describes surveying terms used in the manual.
th/ih
Set or change the target height/instrument height.
V%
Percentage grade between two points.
V-ft
The unit is currently set to meters. Press the softkey to set the unit to US-feet.
xSet
Input offset x.
XY
Input XY coordinates.
y
Input offset y.
Z
Set the Z coordinate.
2D observation
Two-dimensional observation, X and Y.
3D observation
Three-dimensional observation, X, Y, and Z.
accuracy
The closeness of a measurement to the actual (true) value of the quantity being
measured.
adjusted values
Values derived from observed data (measurement) by applying a process of
eliminating errors in that data in a network adjustment.
adjustment
The process of determining and applying corrections to observations for the
purpose of reducing errors in a network adjustment.
algebraic sign
The sign (+ or -) associated with a value that shows whether it is a positive or
negative number.
algorithm
A set of rules for solving a problem in a finite number of steps
alidade
In this manual, alidade refers to the housing part of the instrument. It includes die
cast body part, H/V encorders, optical plummet, circular/plate levels, display and
keyboard, and H/V tangent screw and clamp.
The EDM part is independent from the alidade part.
ambient temperature
The current overall temperature.
angles and distance
Conventional measurement of horizontal and vertical angles and a slope distance.
attribute value
A particular value for a feature, chosen from the domain of an attribute. For
example: surface type is an attribute; bitumen, gravel, and concrete are domains;
and gravel is an attribute value.
axis
One of the reference lines of a coordinate system.
azimuth
The horizontal direction reckoned clockwise from the meridian (north) plane.