VERIFICATION OF TEMPERATURE OF ULTRASONIC FLOW METERS Russian patent published in 2016 - IPC G01F1/66 

FIELD: measuring equipment.

SUBSTANCE: apparatus and methods for verification of temperature measurements in an ultrasonic flowmeter. In one version of measuring system for ultrasonic measurement of flow rate has a channel for fluid medium flow, temperature sensor and ultrasonic flowmeter. Temperature sensor is arranged for temperature measurement of fluid medium flowing in channel. Ultrasonic flowmeter comprises a plurality of pairs of ultrasonic transducers and control electronic devices. Each pair of converters is configured to generate chordal trajectory through channel between transducers. Control electronic devices are connected to ultrasonic transducers. Control electronic devices are configured to measure sound speed between each pair of transducers on basis of ultrasonic signals passing between pairs of transducers. Method includes detecting presence of a temperature gradient on basis of measured velocities, by which it is determined whether measured temperature accurately output by temperature sensor reflects temperature of fluid flowing in channel.

EFFECT: technical result is high accuracy of determining flow rate of medium.

22 cl, 8 dwg