A measuring device for distributed optical fiber water body temperature and flow velocity distribution

A distributed optical fiber, flow velocity distribution technology, applied in measurement devices, fluid velocity measurement, velocity/acceleration/impact measurement, etc., can solve problems such as water environment impact, reduce adhesion and radiation, extend test effectiveness, and reduce cost effect

Active Publication Date: 2020-09-22
沈银峰
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The invention proposes a distributed optical fiber water body temperature and flow velocity distribution measuring device, which solves the problem of the influence of the water body environment on the measurement

Method used

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  • A measuring device for distributed optical fiber water body temperature and flow velocity distribution
  • A measuring device for distributed optical fiber water body temperature and flow velocity distribution
  • A measuring device for distributed optical fiber water body temperature and flow velocity distribution

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Embodiment Construction

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

[0041] See attached Figure 1-4 , an example of a measuring device utilizing distributed optical fibers to realize water body temperature and flow velocity distribution in the present invention is Figure 1 ~ Figure 2 As shown, the device can measure the temperature, flow velocity and their distribution in the depth direction of the water body. The entire measurement mechanism is attached to the carrier 1 with a hollow shuttle-shaped streamlined structure. The carrier 1 is connected to the base 6 through the rotating shaft 2. The base 6 stabilizes the entire measuring device in the water body. The hollow structure of the carrier 1 can be suspended in the water body. ...

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Abstract

The invention discloses a distributed optical fiber water body temperature and flow velocity distribution measuring device, which relates to fluid structure design and distributed optical fiber sensing measurement technology. Aiming at the problem of measuring the existing water body environment, the following scheme is proposed, which includes a carrier , the carrier is connected with a rotating fulcrum, one end of the rotating fulcrum is connected with a base, the carrier is provided with a temperature measuring device and a flow rate measuring device, and the carrier is provided with an optical fiber hollow winding structure, the present invention can Effectively obtain the distribution of flow velocity and temperature of the water body in depth, and it is completed by a single test optical fiber, which improves the test efficiency and reduces the test cost; the Teflon coating method on the surface of the carrier structure can effectively reduce the adhesion and radiation of various substances in the water body, Extended device testing effectiveness.

Description

technical field [0001] The invention relates to fluid structure design and distributed optical fiber sensing measurement technology, in particular to a measuring device for distributed optical fiber water body temperature and flow velocity distribution. Background technique [0002] Since the development of laser technology and optical fiber technology, while using optical fiber as a transmission medium, it can also be used as a sensing medium. The developed optical fiber sensing technology can use the wave propagating in the optical fiber as a carrier to compare the state of the optical fiber with the environment. The state of the environment is associated with the change of the light wave or the effect, including physical parameters such as temperature and strain, which will affect the refractive index and deformation of the optical fiber itself, and make the transmitted optical signal or the effect caused by the optical signal Changes, through the demodulation and analysi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01K11/32G01P5/26G01K11/322
Inventor 沈银峰
Owner 沈银峰
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