DEVICE measurement and control of radioactive elements With self-correction

摘要

The invention relates to measuring and automatic control and is designed to measure radioactive parameters with self-correction. The source 19 of reference voltage, an inverting amplifier 12 with unity gain summing amplifier 9, the inverting amplifier 11 with high gain, scaling amplifier 10 and digital to analog multiplying converter (CAF) 8 form a complex impedance of the power supply circuit Z ₁ standing in the feedback loop of the amplifier 11. The source 20 of reference voltage, phase-shifting circuit 13, CAF 14 and 15, summing amplifier 16 form a power supply circuit of the impedance Z _2, standing in direct amplifier circuit 11. Cl Yuchi 6, 7, 17 and 18 are elements for switching modes of measurement parameters of capacitors, inductors and resistors. Controlled element 1 is connected to the measuring circuit via terminals 2 and 3. With the transmission 26 driven coefficients CAF processing and control unit sets 8, 14 and 15. The apparatus also comprises a reference resistors 4 and 5, an analog-digital converter 25, phase-sensitive rectifiers 21 and 22. The technical effect is to extend the field of application and improving the accuracy of the transformation parameters of controlled elements. 2 yl., 1 tab.