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Optical fiber flow meter with fluorescent material and control method

A fluorescent material and optical fiber flow technology, applied in the direction of indirect mass flowmeters, mass flow measurement devices, etc., can solve the problems of inapplicability, and achieve the effects of miniaturization, integration, and high commercial value

Pending Publication Date: 2020-08-04
SHANGHAI GND ETECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is not suitable for harsh narrow spaces (such as toxic, flammable, explosive, high temperature and high pressure, strong electromagnetic interference, etc.)
[0004] How to overcome the above-mentioned technical defects so as to be able to accurately calculate the mass flow rate of the fluid has become a technical problem to be solved urgently. However, in the current prior art, there is no technical solution that can effectively solve the above-mentioned technical problems, that is, there is no one Optical fiber flowmeter with fluorescent material and control method

Method used

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  • Optical fiber flow meter with fluorescent material and control method
  • Optical fiber flow meter with fluorescent material and control method
  • Optical fiber flow meter with fluorescent material and control method

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Embodiment Construction

[0038] In order to better clearly express the technical solution of the present invention, the present invention will be further described below in conjunction with the accompanying drawings.

[0039] figure 1 According to a specific embodiment of the present invention, a schematic diagram of the structural connection of an optical fiber flowmeter with a fluorescent material, figure 2 According to the first embodiment of the present invention, a schematic diagram of the structural connection of an optical fiber flowmeter with fluorescent materials is shown. In order to better describe the connection, structure, shape, material, etc. of each component in the present invention in detail, this invention will combine figure 1 as well as figure 2 Let's further describe the optical fiber flowmeter with fluorescent material.

[0040] The present invention shows a fiber optic flowmeter with fluorescent material, which is used to determine the mass flow rate of the fluid in the fl...

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Abstract

The invention provides an optical fiber flow meter with a fluorescent material, which is used for determining a mass flow rate of a fluid in a fluid pipe. The optical fiber flow meter comprises two fluorescent materials (1) arranged at an interval, two optical fibers (3) arranged at intervals of the two fluorescent materials (1) and used for transmitting a light source, a photoelectric module (5)and an upper computer (7), wherein the photoelectric module (5) is connected with two optical fibers (3) and used for emitting high-energy light beams, receiving optical signals from the optical fibers (3) and converting the optical signals into electric signals; the upper computer (7) is connected with the photoelectric module (5) and used for determining and storing the mass flow of the fluid; and the two fluorescent materials (1) which are arranged at the interval are attached to an outer pipe wall of the fluid pipe (4). Geometric dimensions of an optical probe and the fluorescent materialsadopted by the invention can be very small, a corresponding heat capacity is also very small, measurement responsivity is high, and miniaturization and integration are facilitated. The flow meter issimple in structure, convenient to use and accurate in measurement, and has an extremely high commercial value.

Description

technical field [0001] The invention belongs to the technical field of flow detection and optical fiber sensing, and relates to a thermal mass flowmeter, in particular to an optical fiber flowmeter with fluorescent material and a control method. Background technique [0002] A thermal mass flowmeter is an instrument that uses the principle of heat conduction to measure mass flow, and usually consists of two reference thermal resistors placed on the pipe wall. The commonly used measurement method is to apply a specified voltage or flow a specified current to the two thermal resistors to make them generate heat and transfer the heat to the fluid in the tube. When the fluid is static, the temperature of the thermal resistances on the upstream and downstream is equal. When the fluid flows, the temperature on the downstream is higher than that on the upstream, and increases approximately linearly with the increase of the mass flow rate of the fluid. Since the resistance value of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F1/86
CPCG01F1/86
Inventor 夏子奂王秋瑾
Owner SHANGHAI GND ETECH CO LTD
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