Reflective fiber sensor for simultaneous measurement of seawater salinity and temperature
A fiber optic sensor and seawater salt technology, which is applied in the direction of transmitting sensing components, converting sensor output, thermometers, etc. by using optical devices, can solve problems such as unsatisfactory performance, inability to use long-distance transmission, complicated sensor production, etc., and achieve low cost , The preparation process is simple, and the effect of reducing the impact
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[0018] In order to make the object, technical solution and advantages of the present invention clearer, the specific structure, principle and working process of the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.
[0019] Such as figure 1 Shown is a reflective optical fiber sensor for simultaneous measurement of seawater salinity and temperature proposed by the present invention. Its working process is as follows: the light emitted by the halogen light source 1 is first transmitted to the multimode fiber 21 through the Y-shaped fiber 2 and then enters the single-mode fiber 22, and then reflected at the end face of the single-mode fiber 22 at 23 and then enters the Y-shaped fiber 2 and is transmitted to the spectrometer 4 Monitor the amount of spectral shift. Among them, the multimode fiber 21 and the single-mode fiber 22 are fused by a fusion splicer. The length of the single...
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