Answers are grounded in this paper and cite their sources.
A newly developed bore-hole inclinometer permits the determination of bore-hole configurations with greater accuracy and efficiency in comparison with earlier systems of inclinometry. Instrument orientation is given to within 0.1° in magnitude of tilt and 10° in azimuth of tilt by an electrical output which can be read remotely from the surface.
No takes yet. Share an insight, caveat, or question.
C. F. Raymond (1971) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: