Current measuring method and device based on electromagnetic force and through optical fibers
A fiber optic current and measuring device technology, applied in measuring devices, voltage/current isolation, measuring electrical variables, etc., can solve problems such as inconvenient equipment installation, maintenance, unsatisfactory measurement accuracy, and threat to the life of operators. Simple, easy to implement, good insulation effect
Active Publication Date: 2012-12-12
安徽龙联智能光电有限公司
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Problems solved by technology
[0003] With the urgent need for high-current measurement in fields such as high-voltage power transmission, electroplating, electrometallurgy, motor manufacturing and maintenance, batteries, electric locomotives, railway locomotives, aerospace, lightning current monitoring, etc., the power system is developing in the direction of large capacity and high voltage. , the traditional current measuring device has become increasingly unable to adapt to this development trend, there are: 1, the insulation structure is complex, the size is large, and the cost is high; 2, the measurement accuracy cannot be satisfied; 3, the equipment installation and maintenance are inconvenient; 4, There are potential dangers that pose a threat to the lives of operators, so it is necessary for us to develop and develop new current measurement devices, and technical innovations in current measurement are urgently needed
Method used
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Embodiment 1
[0035] Example 1, see figure 1 and figure 2 , a fiber optic current measuring device based on electromagnetic force, which includes a metal solenoid 1 connected to a measured current 14 through a metal wire 13, a metal push rod 5 is arranged in the metal solenoid 1, and the The right side of the metal push rod 5 passes through the metal fixed iron 2 and the return spring 4 in turn, and then connects with the metal moving iron 3. The metal moving iron 3 is provided with an adjustment between the metal fixed iron 2 and the metal moving iron 3. The adjusting screw 7 of the size of the air gap, the adjusting screw 7 passes through the right side plate of the auxiliary positioning device 10, and the left side of the metal push rod 5 passes through the first left side plate of the auxiliary positioning device 10 and connects with the elastic element 6 connected, the elastic element 6 is provided with an optical fiber stress sensing probe 8, the optical fiber stress sensing probe 8...
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The invention relates to a current measuring method and a device based on electromagnetic force and through optical fibers. The device comprises a metal solenoid connected with a current to be measured through a metal wire, a metal push rod is arranged in the metal solenoid, the right side of the metal push rod sequentially penetrates through metal static iron and a return spring and then is connected with metal moving iron, an adjusting screw is arranged on the metal moving iron and penetrates through a right side plate of an auxiliary positioning device, the left side of the metal push rod penetrates through a first left side plate of the auxiliary positioning device and then is connected with an elastic element, an optical fiber stress sensing probe is arranged on the elastic element and connected with a data and analysis processing device through transmission optical fibers, and an optical fiber temperature sensing probe is arranged nearby the optical fiber stress sensing probe and connected with the data and analysis processing device through transmission optical fibers. The measuring device is simple in structure and capable of measuring current values accurately.
Description
technical field [0001] The invention relates to the fields of current measurement, current control and current relay protection, in particular to an optical fiber current measurement method and device based on electromagnetic force. Background technique [0002] As an important parameter of electric energy and the basic quantity of electrical measurement, the current value is widely used in AC and DC transmission, electroplating, electrometallurgy, motor manufacturing and maintenance, nuclear physics, batteries, electric locomotives, aerospace and other fields. The current value ranges from a few amps, dozens of amps to hundreds of amps, thousands of amps or even tens of thousands of amps. The accurate measurement of these current values is directly related to the system operation effect, product quality, and even the entire system engineering. success or failure. [0003] With the urgent need for high-current measurement in fields such as high-voltage power transmission,...
Claims
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Patent Timeline
Login to View More IPC IPC(8): G01R19/00G01R15/24G01R19/32
Inventor 周次明姚远童杏林张文举王东礼
Owner 安徽龙联智能光电有限公司