| 简介 |
1. The device of nuclear-magnetic logging, which consists besides, at least, one long magnet, magnetized perpendicularly down its longitudinal axis, and radio-frequency coil for creating the field, perpendicular down the field of magnet, the generator of radio-frequency pulses, receiver of signals of nuclear-magnetic resonance and [soglasuyushchego] device, down first entrance of which is connected the beginning of the radio-frequency coil, whose end is connected with the common point of the [soglasuyushchego] device, down second entrance of which is connected the output of the generator of radio-frequency pulses, and the output of the [soglasuyushchego] device it is connected with the entrance of the receiver of signals of nuclear-magnetic resonance, that is characterized by the fact that the magnet is made from the conducting rare-earth material Of smCo in the form of the long cylinder, magnetized perpendicularly down its longitudinal axis, radio-frequency coil it is wound on the cylinder, whose diameter is not less than the cross-section diameter of magnet, which is been located inside the cylinder, the turns of coil lying in the planes, parallel to the long axis of magnet, and perpendicular down its poles in the symmetrical sectors, which are been located opposite the magnet poles, and above the radio-frequency coil is located shielding [ustroystvo].2. Device on [p].1, which is characterized by the fact that above the shielding device is located the jacket of the probe of the nuclear-magnetic of [karotazha].3. Device on [p].1, which is characterized by the fact that the diameter of radio-frequency coil is maximally approximating the diameter of [kozhukha].4. Device on [p].1, which is characterized by the fact that the shielding device is the solenoid coil, whose turns with one of the lateral sides are cut and do not concern each other, but based on the other side - they are connected together about |
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