MZ interference SPR chemical and biological sensor and system with fibre-optical microstructure
A biosensor and microstructure technology, applied in the fields of biology, chemistry, and optical fiber sensing, can solve problems such as difficult alignment and debugging, large stray light interference, and difficulties, and achieve good controllability of production quality, low signal light noise, The effect of simple external structure
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 The following is an example of the measurement of the concentration of glucose solution to illustrate the implementation of the above-mentioned sensor and system in conjunction with the accompanying drawings. The composition of the biomolecule and chemical composition measurement system and the sensor in the form of gas or other solutions is similar, and the difference is only in the optical fiber. A different chemical or biomolecule sensitive film layer is cured on the metal film layer outside the cladding layer.
 See Figure 4 , The structure of the sensor consists of: optical fiber coating layer 1, optical fiber cladding layer 2, optical fiber core 3, long-period fiber grating LPFG14, metal film layer 5, chemical or biological molecule absorption or sensitive film layer 6, long-period fiber grating LPFG27, protective cover 8, curing glue 9, plastic transition buffer cover 10. Its production method is: (1) remove a small section of plastic protective coating of an...
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