This compass differs from modern compasses, as it utilizes magnetic induction damping rather than fluid to dampen needle oscillation. It is widely used by geologists and surveyors to make accurate....
This compass differs from modern compasses, as it utilizes magnetic induction damping rather than fluid to dampen needle oscillation. It is widely used by geologists and surveyors to make accurate degree and angle measurements. The compass may be adjusted for declination angle according to one's location on the earth, in order used by geologists and surveyors to make accurate degree and angle measurements. bruton compass, precision instrument for a variety of surveying functions such as preliminary surveys, mining works etc. 50 mm needle with jewelled pivot, vertical graduation 0-90 in both directions with vernier reading direct to 10' contains a damper for magnetic needle movement, graduated 0 to 360. Complete in leather sling case. The specifications of brunton compass are: ·used by surveyors to make accurate degree and angle measurements ·utilizes magnetic induction damping. technical data: damping time of needle:
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