METER OF DETUNING OF SHF RESONATOR Russian patent published in 1994 - IPC

FIELD: measurement technology. SUBSTANCE: meter of detuning of SHF resonator has controlled SHF switch, dual waveguide tee one output of which is output for connection of input of SHF resonator, SHF balance mixer, band-pass filter, amplitude detector, selective amplifier, phase-sensitive rectifier and indicator connected in series, high-frequency quartz generator, frequency multiplier, SHF balance modulator connected in series. Output of SHF balance modulator is connected to inputs of waveguide tee and inputs of controlled SHF switch through SHF filters of low-and high-pass filters coupled in parallel. Second input of SHF balance modulator is connected to output of high-frequency generator through first frequency divider. Controlling inputs of SHF switch are connected to output of first frequency divider through second frequency divider, controlled voltage divider and wide-band amplifier placed between output of amplitude detector and input of selective amplifier. Meter also includes differential amplifier, source of reference voltage and integrator. EFFECT: improved accuracy of measurement of detuning.