The rotor of the continuous wave pulse generator generates a sinusoidal pressure wave under the action of the mud, and the measured data encoded by the downhole probe causes the sine or cosine pressure wave to appear in time through the angular displacement of the stator controlled by the modulation system with respect to the rotor. Phase shift or angular displacement. These phase or frequency changes are continuously detected on the ground, and the measurement data is obtained by decoding and calculation, as shown in FIG. The advantages are: fast data transmission and high precision.
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