High-precision magnetoelectric vortex shedding flowmeter

Abstract

The invention discloses a high-precision magnetoelectric vortex shedding flowmeter which comprises a measuring pipe, upper magnetic steel, lower magnetic steel, a vortex generating body, a sensor probe, a supporting guide pipe and an integrating instrument. The upper magnetic steel and the lower magnetic steel are arranged on the upper side and the lower side of the measuring pipe respectively, the vortex generating body and the sensor probe are arranged in the measuring pipe and oppositely mounted, the supporting guide pipe is arranged above the measuring pipe and communicated with a shell, and the integrating instrument is arranged at the upper end of the supporting guide pipe. The sensor probe is inserted into the measuring pipe from the supporting guide pipe, a magnetoelectric convertor and a signal amplifier are arranged in the stainless steel guide pipe, the sensor probe is connected with the integrating instrument sequentially through the magnetoelectric convertor and the signal amplifier, and a T-shaped probe sleeve is arranged on the outer side of the sensor probe. The design that the Karman Vortex Street theory and the electromagnetic induction theory are combined is adopted, measuring errors caused by vibration of the measuring pipe are effectively eliminated, the anti-interference capacity is improved, and the measuring precision of the flowmeter is greatly improved.

Description

technical field [0001] The invention relates to the technical field of measuring instruments, in particular to a high-precision magnetoelectric vortex flowmeter. Background technique [0002] At present, the vortex flowmeter has become one of the indispensable equipment in the detection process. It is researched and produced according to the principle of Karman vortex street. It is mainly used for the flow measurement of medium fluid in industrial pipelines. There are no moving mechanical parts, so it has high reliability. , the amount of maintenance is small, and it can work stably for a long time. With the continuous development of vortex flowmeters, vortex flowmeters have been widely used due to their unique advantages. [0003] However, the measurement tube of the existing vortex flowmeter vibrates during the measurement process, causing measurement errors and poor anti-interference ability; moreover, its structure is complex, the volume is large, the resolution and sen...

AI Technical Summary

Problems solved by technology

[0003] However, the measurement tube of the existing vortex flowmeter vibrates during the measurement process, causing measurement errors and poor anti-interference ability; moreover, its structure is complex, the volume is large, the resolution and sensitivity are poor, and it cannot work in harsh environments. A vortex flowmeter is needed to solve the above problems

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