Weighing apparatus based on giant magnetostriction and chirped moire fiber grating demodulation
A technology of giant magnetostriction and giant magnetostrictive rod, which is applied in the demodulation of light, cladding optical fiber, weighing equipment using elastically deformable parts, etc. Small measurement range, complex structure and other problems, to achieve the effect of expanding the demodulation range, large magnetostrictive value, and simple production process
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[0021] The present invention will be further described in conjunction with accompanying drawings.
[0022] A weighing instrument based on giant magnetostriction and chirped fiber moire demodulation, such as figure 1 . The device includes: a broadband light source 10 , a first coupler, a second coupler, a sensor head 30 , and a signal processing system 50 .
[0023] The broadband light source 10 is connected to the first port 11 of the first coupler, the second port 12 of the first coupler is connected to the sensor head 30, and the third port 13 of the first coupler is connected to the first port 21 of the second coupler , the second port 22 of the second coupler is connected to the demodulation system; the third port 23 of the second coupler is connected to the signal processing system 50 .
[0024] The demodulation system includes: optical fiber 40 , chirped fiber moire 41 , giant magnetostrictive rod 42 , solenoid 43 and power supply 44 .
[0025] It constitutes the con...
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