STRING WAVE RECORDER Russian patent published in 2018 - IPC G01C13/00 G01F23/00 

FIELD: measuring equipment.

SUBSTANCE: invention relates to the field of oceanographic measurements. Feature of the claimed string wave recorder is that a RC oscillator with a phase control of the frequency of generated sinusoidal oscillations is included in the measurement circuit, that converts the voltage of the measured signal from the resistive sensor to the frequency of the control signal, which is fed to the input of a controlled current generator that generates predetermined sinusoidal signals fed to the resistive sensor. Between the resistive sensor and the RC-generator, the zero-potential stabilizer of the resistive sensor is turned on. Supply of the measuring circuit is carried out through a stabilized power supply unit, galvanically isolating the resistive sensor from external supply circuits.

EFFECT: increase the accuracy of measurements, noise immunity and increase the resource of stable operation.

1 cl, 1 dwg