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A mass flow sensor

A mass flow and sensor technology, applied in the direction of direct mass flow meter, mass flow measurement device, etc., can solve the problems of poor stability and low sensitivity, and achieve the effects of good stability, simplified overall structure, and reduced flow field influence.

Active Publication Date: 2018-04-10
锦州天辰博锐仪表有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the mass flow sensors commonly used at present often have the problems of poor stability and low sensitivity.

Method used

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with accompanying drawing.

[0027] figure 1 A perspective view of a mass flow sensor 100 according to the invention is shown. Such as figure 1 As shown, the flow sensor 100 includes two measuring tubes 1 , an exciter 3 and two detectors 4 . Two measuring tubes 1 are arranged in parallel, that is, both are in figure 1 Intermediate and front-to-back spaced overlapping arrangements. And each measuring tube 1 is configured to be symmetrical about the longitudinal center type, which has two straight pipe sections 11, an intermediate straight pipe section 12 respectively connected to the two straight pipe sections 11, and an arc section 13 for smoothly connecting the two straight pipe sections 11 and the intermediate straight pipe section 12. That is, the two straight pipe sections 11 and the middle straight pipe section 12 are substantially perpendicular, and a smooth transition arc section 13 is pro...

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Abstract

The invention relates to a mass flowmeter. The mass flowmeter comprises two metering tubes, a vibration exciter and two detectors, the metering tubes are arranged in parallel and are identical in structure, each metering tube is symmetrically U-shaped around a longitudinal center and is provided with two straight tube sections, a middle straight tube section and arced tube sections, two ends of each middle straight tube section are vertically connected with the corresponding straight tube sections, the arched tube sections are used for smooth connection with the corresponding straight tube sections and middle straight tube section, the vibration exciter is arranged at the centers of the middle straight tube sections, a coil and a magnetic steel of the vibration exciter are positioned on different metering tubes respectively, the detectors are symmetrically arranged on two sides of the vibration exciter, and a coil and a magnetic steel of each detector are arranged on different metering tubes respectively. When fluid flows through the two metering tubes at identical mass flow, the vibration exciter vibrates the two metering tubes to trigger the Coriolis effect, and the detectors detect vibration signals so as to obtain the mass flow of the fluid. The mass flowmeter has the advantages of high sensitivity, low-pressure loss, easiness in processing and matching and the like.

Description

technical field [0001] The invention belongs to the field of testing and measuring instruments, and in particular relates to a mass flow sensor. Background technique [0002] Flow measuring instrument is an important tool for production, saving energy, improving product quality, and increasing economic benefits, and occupies an important position in the national economy. Widely used in various fields such as petroleum, chemical industry, natural gas, environmental protection, medicine, hygiene, food, trade settlement, various machinery and equipment, etc. At the same time, with the development of biology, medical treatment, food hygiene, micro-chemical and other fields, these industries put forward strict requirements for the precise measurement and control of small flow, thus promoting the rapid development of small flow measurement technology. [0003] The Coriolis Mass Flowmeter (CMF) has attracted widespread attention for its excellent advantages of directly measuring m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01F1/84
Inventor 杨云博
Owner 锦州天辰博锐仪表有限公司
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