| 摘要 |
An apparatus for automatic control of current electrodes in a measuring system for an electrical resistivity survey includes: a circuit where one pair of metal oxide semiconductor field effect transistors (MOSFETs) are connected to upper and lower terminals of n current electrodes and the one pair of MOSFETs are connected in parallel with each other; and a controller which controls ON/OFF of each MOSFET. A method for automatic control of current electrodes in a measuring system for an electrical resistivity survey includes: (a) by a controller, selecting two current electrodes C1, C2 from a circuit where one pair of MOSFETs are connected to upper and lower terminals of n current electrodes and the one pair of MOSFETs are connected in parallel with each other; (b) by the controller, controlling the upper MOSFET of the current electrode C1 and the lower MOSFET of the current electrode C2 to be ON and standing by for a predetermined period of time; (c) by the controller, controlling the upper MOSFET of the current electrode C1 and the lower MOSFET of the current electrode C2 to be OFF and standing by for a predetermined period of time; (d) by the controller, controlling the lower MOSFET of the current electrode C1 and the upper MOSFET of the current electrode C2 to be ON and standing by for a predetermined period of time; and (e) by the controller, controlling the lower MOSFET of the current electrode C1 and the upper MOSFET of the current electrode C2 to be OFF and standing by for a predetermined period of time. With this, the present invention provides a stable and semipermanent apparatus for automatic control of current electrodes, which is capable of bipolar high-speed switching, and a method thereof.
|
