65
laser distance measurement
，
The reflector includes prism,non-prism and reflector sheet. You can set by yourself
according to your need. KTS-442UT series Total Station has the unvisible laser distance measurement function
only, and the prism should match with the prism constant.
12. OFFSET MEASUREMENT
·
Offset measurements are performed in order to find a point where a target can not be installed directly or to find
the distance and angle to a point which can not be sighted. It is possible to find the distance and angle to a point
you wish to measure (target point) by installing the target at a location (offset point) a little distance from the
target point and measuring the distance and angle from the surveying point to the offset point.
·
The target point can be found in the three ways explained below:
Diagram
Method
1. Single distance offset measurement
·
When the offset point is positioned to the left or right of the
target point, make sure the angle formed by lines connecting
the offset point to the target point and to the instrument station
is approximately 90°.
·
When the offset point is positioned in front of or behind the
target point, install the offset point on a line linking the
instrument station with the target point.
2. Angle offset measurement
·
Install the offset point as close as possible to the target point to
its left or right.
