For convenience, we assume that while the elevation deviation angle varies, the azimuth deviation angle remains unchanged, and vice versa.
However, in Figure 9(b), the higher the CNRs are, the greater the decreasing degrees of Y[re | A2] with the increase of the azimuth deviation angle are.
The position of Rx is changed, to make the azimuth deviation
angle with respect to the maximum radiation direction gradually increase from 0[degrees] to 25[degrees].
The Electronic Multi-Shot (EMS) is a three-in-one tool from Reflex Instrument AB that measures drill-hole dip and azimuth deviation
, hole temperature, and three components of the hole magnetism.