Sensor parameter optimization method and device, controller and medium

Abstract

The invention relates to a sensor parameter optimization method and device, a controller and a medium, which are applied to an electromagnetic flow sensor. The method includes: obtaining the electromagnetic flow sensor under a certain total flow, electrode lateral spacing and electrode longitudinal spacing to measure the flow rate in the pipeline. Average flow velocity and relative flow velocity; obtain the error rate of the relative flow velocity and average flow velocity; take the electrode lateral spacing and electrode longitudinal spacing as input parameters, and the corresponding error rates under multiple total flow rates as output parameters, and build parameter optimization model; the parameter optimization model is weighted to obtain the optimal horizontal electrode spacing and longitudinal electrode spacing of the electromagnetic flow sensor. The invention obtains the optimal parameters of the electromagnetic flow sensor by analyzing the error rate of the relative flow velocity and the average flow velocity under a plurality of total flow rates, with short time and low cost.

Description

technical field [0001] The invention relates to the technical field of electromagnetic flow sensors, in particular to a method and device for optimizing sensor parameters, a controller and a medium. Background technique [0002] An electromagnetic flow sensor is an instrument that detects the volume flow of fluid flowing through the sensor based on Faraday's law of electromagnetic induction, for example, it can be used to measure downhole flow. Since the inside of the electromagnetic flowmeter pipeline is smooth and unobstructed, it will not interfere with the fluid flow, and will not produce pressure loss, and the measurement results have nothing to do with the physical parameters such as the temperature, viscosity, and pressure of the measured fluid. Therefore, the electromagnetic flow sensor is an accurate measurement of downhole Multiphase flow provides effective technical support, such as downhole oil, gas and water three-phase flow. The correlation method can be used ...

AI Technical Summary

Problems solved by technology

The horizontal distance and vertical distance between the detection electrodes of the electromagnetic flow sensor, that is, the horizontal spacing of the electrodes and the longitudinal spacing of the electrodes is one of the key technologies to realize the electromagnetic flow sensor. The setting of the horizontal spacing of the electrodes and the longitudinal spacing of the electrodes will directly affect the electromagnetic flow sensor. For example, when the distance between the upstream electrode and the downstream electrode is large, the upstream electrode and the downstream electrode will not be in the same magnetic field, and eddy currents will be generated, resulting in measurement errors

Simply changing the electrode structure parameters through experience to optimize the parameters of the electromagnetic flow sensor will consume a lot of material and financial resources, and the accuracy is difficult to grasp. Therefore, how to realize the parameter optimization of the electromagnetic flow sensor has become an urgent technical problem to be solved.

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