DEVICE TO COMPENSATE ERROR OF MEASUREMENT OF ULTRASONIC WELL DEPTH GAUGE Russian patent published in 2015 - IPC G01N29/36 

FIELD: measurement equipment.

SUBSTANCE: device to compensate error of measurement of an ultrasonic locator comprises a generator of ultrasonic pulses connected to an emitter, and the following serially connected components: a receiver, an amplifier, a threshold device, a time interval generation unit, a unit of time interval measurement and a unit of control and indication, the output of which is connected to the generator and input of the time interval generation unit, a source of reference voltage, connected to the input of the threshold device, a quartz generator connected to the unit of time interval measurement, at the same time the second generator of ultrasonic pulses is connected to the second emitter, the following components are connected in series: the second receiver, the second amplifier, the second threshold device, the second unit of time interval generation and the second unit of time interval measurement, besides, the source of reference voltage is connected to the second input of the second threshold device, the input of the second unit of time interval measurement is connected to the quartz generator, and the output of the second unit of time interval measurement is connected to the unit of control and indication, outputs of which are connected to the second generator and the second unit of time interval generation.

EFFECT: reduced error and increased stability of measurements in waveguide distribution of ultrasonic oscillations.

2 dwg