Passive multi-point liquid leakage monitoring device and method
A monitoring device and liquid leakage technology, which is applied in the application of light to test the fluid tightness, etc., can solve the problems of narrow application area and weakened sensor performance, and achieve wide application area, simple device structure and signal demodulation, and strong practicability Effect
Inactive Publication Date: 2018-07-24
ANDOL TECH
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Problems solved by technology
There are monitoring blind spots in this method of manual inspection, and the risk of leakage still exists; however, most of the existing liquid leakage monitoring devices use sensors based on electrical characteristics, which are difficult to monitor the leakage of flammable and explosive liquids. In a strong electromagnetic environment, the working performance of the main component sensor will be greatly weakened, and the traditional liquid leakage sensor is often only for a specific liquid, and the applicable area is narrow
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[0019] Below in conjunction with accompanying drawing and specific embodiment, further illustrate the present invention, should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various aspects of the present invention Modifications in equivalent forms all fall within the scope defined by the appended claims of this application.
[0020] Such as figure 1 As shown, the passive multi-point liquid leakage monitoring device of the present invention includes a demodulation host 1 capable of resolving the position of the optical fiber coupler. The demodulation host 1 has the ability of resolving the position of the optical fiber coupler. demodulation. A single-mode optical fiber is connected to the interface of the demodulation host 1. A plurality of fiber couplers are connected in series on the fiber...
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The invention discloses a passive multi-point liquid leakage monitoring device and method. The device comprises a demodulation host, a transmission optical fiber and optical fiber couplers; the optical fiber couplers are connected in series through the transmission optical fiber; one end of the transmission optical fiber is connected with the demodulation host, and the other end of the transmission optical fiber is suspended; one end of each optical fiber coupler is a flattened optical fiber end surface that acts as a sensing probe; and the normal of the flattened optical fiber end surface isparallel to the axis of the optical fiber. According to the passive multi-point liquid leakage monitoring device and method of the invention, liquid leakage monitoring is realized through analyzing the reflected light power of the optical fiber end surfaces on the basis of correlation between the reflected light power of the optical fiber end surfaces and the refractive index of a medium where theoptical fiber end surfaces are located.
Description
technical field [0001] The invention relates to a liquid leakage monitoring device, in particular to a passive multi-point liquid leakage monitoring device and method. Background technique [0002] In the process of storage or transmission of various liquids such as water, alcohol, oil, chemical solutions, etc., with the increase of the service time of the container or transmission pipeline, there will inevitably be leakage. If the liquid leakage is not detected in time, it will inevitably Cause economic losses, for some flammable and explosive liquids, there will be fires, explosions and other accidents that endanger people's property and life safety. [0003] At present, the main means to deal with this situation is to use some monitoring devices on the market to monitor, in addition to artificially checking the health status of containers and transmission pipelines on a regular basis. There are monitoring blind spots in this method of manual inspection, and the risk of l...
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IPC IPC(8): G01M3/38
CPCG01M3/38
Inventor 刘冲冲刘得光钱亦非耿开胜陆海东
Owner ANDOL TECH