Cross microbridge fiber magnetic field sensing probe based on giant magnetostrictive effect
A technology of giant magnetostriction and sensor probe, which is applied in the use of magneto-optical equipment for magnetic field measurement, magnetic field size/direction, measurement of magnetic variables, etc. The effect of range, increasing range, and simple device structure
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[0020] combine figure 1 , 2 As shown, the technical solution adopted in the present invention: a cross micro-suspension bridge optical fiber magnetic field sensing probe based on the giant magnetostrictive effect, including: an optical fiber 1, a symmetrical fixed support end 2, and a cross micro-suspension bridge based on the giant magnetostriction effect 3. Chromium metal film 4, giant magnetostrictive film 5.
[0021] The optical fiber end face cross micro-suspension bridge 3 with an intermediate reflector is located at the end face of the optical fiber 1 and has a length of 95 μm-105 μm, wherein the length of the intermediate reflector is 30 μm-40 μm, the width is 30 μm-40 μm, and the thickness of the micro-suspension bridge is 3 μm- 5 μm, forming an optical fiber integrated structure.
[0022] The length of the fixed support end 2 is 10 μm-15 μm, the width of the fixed support end is 15 μm-25 μm the same as the width of the optical fiber micro-suspension bridge 3, and ...
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