Learning Outcomes
At the end of the session, learners of this program are expected to:
a. Measure horizontal distances by Subtense bar Method.
b. Measure horizontal distances by Taping
c. Adjustments of horizontal distances by
c.1 Slope corrections (adjustments)
c.2 Temperature corrections
c.3 Sag corrections
Lesson Proper/ Discussion
Measurement of Horizontal Distances by Subtense Bar Method.
This method is a convenient and practical device used for quick and accurate measurement of horizontal distance. It is a 2 meters long rounded steel tube through which runs a thin invar rod. At each end of the frame the target marks are housed.
Share with your friends: |