Фазометр

Abstract

The proposed phasemeter contains two amplitude-limiting amplifiers, two triggers, two detectors, an AND logic element, a phase inverter, a bridge measuring circuit, a resistor, a capacitor, an indicator, two analog-to-digital converters, a microprocessor computing unit, two pulse-width converters, a gate signal former, a pulse-frequency converter, and differentiators. The inputs of the amplitude-limiting amplifiers are connected to the corresponding inputs of the phasemeter, and the outputs are connected to the outputs of the first trigger. The inputs of the detectors are connected to the outputs of the amplitude-limiting amplifiers, and the outputs are connected to the inputs of the AND logic elements. The output of the logic element is connected to the control inputs of the elements of the bridge measuring circuit. The bridge measuring circuit is inserted between the resistor and the input of the indicator. The capacitor is inserted between the input of the indicator and the common connection point of the phasemeter. The outputs of the analog-to-digital converters are connected to the input of the computing unit. The inputs of the pulse-width converters are connected to the outputs of the detectors, and the outputs are connected to the inputs of the corresponding analog-to-digital converters. The first input of the gate signal former is connected to the output of the first amplitude-limiting amplifier, and the second input is connected to the output of the second detector. The input of the pulse-frequency converter is connected to the output of the gate signal former, and the outputs are connected to the inputs of the analog-to-digital converters. The inputs of the first two differentiators are connected to the corresponding inputs of the phasemeter, ant the outputs are connected to the inputs of the third and the fourth differentiators. The outputs of the third and the fourth differentiators are connected to the inputs of the amplitude-limiting amplifiers.