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Flow velocity detection device, method and system

A flow velocity detection and flow velocity technology, which is used in measurement devices, fluid velocity measurement, velocity/acceleration/impact measurement, etc., can solve the problems of bulky and expensive, and achieve the effect of small size, high sensitivity and simple structure

Pending Publication Date: 2022-01-28
SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
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Problems solved by technology

[0004] In view of this, the present invention aims to provide a flow velocity detection device, a flow velocity detection method and a flow velocity detection system, which are used to improve the problems of expensive and bulky measuring instruments for measuring fluid velocity

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  • Flow velocity detection device, method and system
  • Flow velocity detection device, method and system
  • Flow velocity detection device, method and system

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Embodiment Construction

[0032] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0033] see figure 1 , figure 1 It is a structural block diagram of a flow velocity detection device provided in an embodiment of the present application. The flow velocity detection device 100 includes: a light emitting element 110 , a reflective foil 120 and a photoelectric conversion element 130 .

[0034] The light emitting element 110 is used for emitting light.

[0035] In this embodiment, in order to reduce the volume of the flow velocity detection device 100, the light emitting element 110 should have a small volume, for example, it may be an LED (Light Emitting D...

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Abstract

The invention provides a flow velocity detection device, method and system, and relates to the field of instruments and meters. The flow velocity detection device comprises: a light-emitting element used for emitting light; a reflecting foil which directly faces the light-emitting element, wherein the reflecting foil and the light-emitting element are arranged at intervals, the reflecting foil is an elastic foil, and the reflecting foil is used for reflecting the light rays; and a photoelectric conversion element, wherein the photoelectric conversion element is arranged around the light-emitting element and is used for receiving the light reflected by the reflecting foil and generating an electric signal for measuring and calculating the flow velocity. The flow velocity detection device has the advantages of being simple in structure, small in size, low in manufacturing cost and high in sensitivity to flow velocity changes.

Description

technical field [0001] The present application relates to the field of instruments and meters, in particular to a flow velocity detection device, a flow velocity detection method and a flow velocity detection system. Background technique [0002] There are many existing detection methods for fluid (including gas and liquid) velocity. For example, wind speed detection methods include wind cup measurement method based on rotational speed signal, hot wire measurement method based on heat dissipation rate, and ultrasonic measurement method. Velocity detection methods include a measurement method using a current meter, a buoy method, a volumetric method, and the like. [0003] However, in the existing measurement of flow velocity, because the measuring instrument is bulky and expensive, the applicable conditions of the measurement method are limited, and there are too many factors affecting the result, it cannot be widely used. Contents of the invention [0004] In view of thi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01P5/26
CPCG01P5/26
Inventor 李携曦罗雨萌陈亮
Owner SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
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