A Device for Measuring Lightning Current Parameters Using Optical Fiber
A technology for optical fiber measurement and lightning current, which is applied in the direction of measuring devices, measuring current/voltage, measuring electrical variables, etc., can solve problems such as limiting development, achieve good reliability, simple circuit design, and large dynamic range of measurement
Inactive Publication Date: 2016-08-24
江苏煌恒通信设备制造有限公司
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Problems solved by technology
The structure of the above method is simple, but when designing the Rogowski coil, the linear relationship must be considered, especially when the lightning current is directly measured, the insulation withstand voltage problem must also be considered. When there is a magnetic ring in the Rogowski coil, the magnetic core insulation problem must also be considered. To a large extent, the development of this method is limited
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[0037] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0038] Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the description of the present invention refers to the presence of said features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, Integers, steps, operations, elements, components, and / or groups thereof. It will be understoo...
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The invention discloses a device for measuring lightning current parameters by using an optical fiber, which comprises a light emitting module, an optical sensing module, a light receiving module and a signal processing module. The invention utilizes the Faraday magneto-optical effect principle, uses optical fiber as the medium, and measures the angle at which the polarization plane of light waves rotates under the action of the lightning current magnetic field when the light wave passes through the magneto-optic material, so as to inversely estimate the magnitude of the measured current. This device has high sensitivity and immunity. It can be installed on the lightning terminal to monitor the lightning current data and perform statistical analysis on the lightning current data. It is also suitable for the measurement of the lightning current generated by the lightning current simulation generator.
Description
technical field [0001] The invention relates to a device for measuring lightning current parameters by using an optical fiber, which belongs to the field of lightning science and technology. Background technique [0002] Thunder and lightning is a rapid natural discharge phenomenon that occurs between the clouds and the ground. The discharge process will release huge energy, resulting in dazzling lightning, thunder and powerful electromagnetic pulses. Lightning not only seriously threatens the safety of human life, but also has a huge impact on aviation, traffic, electricity, and construction, resulting in direct and indirect economic losses. Therefore, the generation and formation mechanism of lightning and lightning protection work have always been an important research content, and the monitoring of lightning current plays an important role in lightning protection technology. [0003] Lightning research scholars at home and abroad have achieved certain results by monitor...
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IPC IPC(8): G01R19/00
Inventor 李祥超陈璞阳周中山叶挺
Owner 江苏煌恒通信设备制造有限公司