Specification :

DJF— 10A induced polarization transmitter, an induced polarization sending system composed of DJF— 10A main set and DZ— 10A commutation supply, is an automatic power supply device matched with DWJ— 3A ( or 2, 3) microcomputer induced polarization instrument. It offers a maximum supply voltage of 1200V, a maximum supply electric current of 10A, as the latest-developed high-power IPT following DJF— 10. The device uses computer-on-a-chip to control and has the features of accurate timing, high reliability, large LCD, totally English menu, digital display of output voltage, current, power supply resistance, power supply time, power supply period, the battery voltage. The main set of DJF— 10A transforms the DC rectified from DZ— 10A commutation supply to satisfy induced polarization in both positive direction of power supply and power off and reverse direction of power and power off with a duty ratio of 1: 1 which has five common periods of 43
83
163
323
643 and other periods such as 1283
2563
5123 can be input by hand.
In addition, there is an external controller where the power-on time and period is controlled by the DWJ— 3A ( or 2) microcomputer induced polarization instrument, which especially applies to IP Groundwater Prospecting, IP sounding, IP in near field sourer, IP oil finding, even in strong interference environment. The high voltage power supply can be provided by the DC from DZ-10A( dummy load equipped with balancing generator) , or by dry cell and storage cell in case of low power, which indicates a strong adaptability. The main circuit works steadily and reliably by reason that it has adopted silicon controlled rectifier Commutation Bridge and DC switch without mechanic contacts.
II. Main technological specifications
1. The transmitter is the power supply device which automatically transmit successive square wave with duty ratio of 1: 1 to circuit AB. The power supply procedure is: positive direction-power off-reverse direction-power off. The power supply periods of 4’ ’ , 8’ ’ , 16’ ’ , 32’ ’ and 64’ ’ ( also can input 0-996 by hand) are available for option, and external control can be operated by MIPI.
2. Precision of time control: 100M©