PHASE GENERATOR SENSOR FOR MONITORING HIGH-SPEED CONDUCTIVE OBJECTS Russian patent published in 2021 - IPC G01D5/22 

FIELD: sensors.

SUBSTANCE: invention relates to contactless inductive phase generator sensors for monitoring the approach of high-speed conductive objects. The phase generator sensor for monitoring high-speed conductive objects consists of two interconnected inductive generators, the first is made on the first inverter and the logic circuit 2AND-NOT, the second-on the second and third inverters, the input of the first and output of the second inverters are connected each through its own resistor to its output and through a separation capacitor with its parallel oscillating circuit. The output of the first inverter is connected to the first input of the logic circuit 2AND-NOT, the output of which is connected via a resistor to the capacitive divider of its oscillating circuit; the output of the second inverter is connected to the second input of the logic circuit 2AND-NOT and to the input of the third inverter, the output of which is connected via a resistor to the capacitive divider of its parallel oscillatory circuit, and a phase detector containing a D-trigger is used as a recording device. A hysteresis generation circuit is introduced into the device in the form of a resistive divider connected between the inverting output of the D-trigger and the common bus of the device, and a resistor connected between the output of the resistive divider and the input of the inverter of the first generator.

EFFECT: technical result is increased hysteresis.

1 cl, 1 dwg