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Optical fiber grating static water level

A static level and optical fiber grating technology, applied in instruments, scientific instruments, and measurement of the change force of optical properties of materials when they are stressed, can solve problems such as leakage, low precision, and poor dynamic performance, and achieve Remote real-time reading of data, automatic temperature compensation, and easy networking

Inactive Publication Date: 2009-04-15
上海森首科技股份有限公司
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  • Abstract
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Problems solved by technology

[0002] The traditional static level adopts traditional measurement methods such as pressure type, capacitive type, and float type, all of which are based on electrical sensors, which have weak anti-interferenc

Method used

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  • Optical fiber grating static water level
  • Optical fiber grating static water level
  • Optical fiber grating static water level

Examples

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with specific examples.

[0018] Such as Figure 1~4 As shown, the fiber grating static level includes a bellows 1, an elastic beam 2, a fiber grating 3, a connector I 4, a connector II 5, a fiber grating temperature sensor 6, a threaded pipe 7, a limiter 9, and a buoy 12. The outer cylinder 13, the two ends of the bellows 1 are respectively connected with the connector I 4 and the connector II 5; the elastic beam 2 is set in the bellows 1, one end is connected with the connector I 4, and the other end Connected with the threaded pipe 7; the connector II 5 is connected with the fiber grating temperature sensor 6; one end of the fiber grating 3 is connected with the elastic beam 2, and the other end is fused with the fiber grating 18 in the fiber grating temperature sensor 6 and connected On the device II 5; the connector II 5 is fixed below the center of the bottom of the buoy 12, and the fiber gratin...

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Abstract

The invention relates to an optical fiber grating static force level which comprises a corrugated tube, an elastic beam, an optical fiber grating, a connector I, a connector II, an optical fiber grating temperature sensor, a screw tube, a limiter, a pontoon and an external cylinder. Compared with the prior art, the optical fiber grating static force level uses the theory that the reflection wavelength of the optical fiber grating varies with the change of the tensile force exerted on the grating, and obtains the change of the tensile force exerted on the fiber grating by monitoring the variance of the wavelength of light reflected by the optical fiber grating so as to calculate the buoyancy force exerted on the pontoon and the liquid level of the pontoon; the level of the liquid in the pontoon can be measured using the optical fiber grating with the characteristics; the structure also comprises an optical fiber grating temperature sensor which effectively monitors the temperature of the system to realize automatic temperature compensation; and the fiber grating static force level has the advantages of high precision of liquid level measurement, remote and real-time data reading, and simple and easy networking.

Description

technical field [0001] The invention relates to the technical field of fiber grating sensing, in particular to a fiber grating static level. Background technique [0002] The traditional static level adopts traditional measurement methods such as pressure type, capacitive type, and float type, all of which are based on electrical sensors, which have weak anti-interference ability, low precision, short service life, weak networking ability, and poor dynamic performance. It has disadvantages such as winding, blockage, leakage, medium corrosion, and inconvenient maintenance. Contents of the invention [0003] The object of the present invention is to provide a fiber grating static level instrument with high liquid level measurement accuracy in order to overcome the above-mentioned defects in the prior art. [0004] The object of the present invention can be achieved through the following technical solutions: a fiber grating static level, characterized in that the level inclu...

Claims

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Application Information

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IPC IPC(8): G01L1/24G01F23/292G01K11/32G01K11/3206
Inventor 曹春耕杜新民孙斌谢宇
Owner 上海森首科技股份有限公司
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