Creation of wideband high frequency measuring amplifiers and systems of their research and metrological attestation
The performance behavior of amplifiers with series-additive operational amplifiers for voltages up to 1000 V has been determined. An automated system for research on broadband amplifiers has been designed. Experimental samples of the amplifier for voltages up to 1000 V in the frequency range up to 100 kHz and multi-channel measurement system for constant and alternating voltage and current, power, phase shifts, nonlinear distortion and temperature measurements have been designed and fabricated. Power transducer of absorption type with conversion of power, voltage and current in photo-EMF and electrical insulation of the measuring circuits was explored. The multi-channel, high-frequency transformers with minimized capacitive connections between the windings have been designed.