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A cost-efficient all fiber temperature sensor based on a Sagnac interferometer is proposed and experimentally demonstrated. The sensor proposed comprises a section of thin core fiber (TCF) in combination with Panda type polarization maintaining fiber (PMF). The key point is that the core of TCF is intentionally aligned to one of two stress areas of Panda type PMF in order to change the mode transmission...
For temperature control question in hyperthermia, temperature field is simulated and a two-dimension fuzzy temperature control system is designed. And control algorithm of this system and its realization on FPGA(Field??|Programmable Gate Array) is provided. The optical fiber temperature sensor is used to ensure accuracy of temperature measurement. The results indicated that the fuzzy control can effectively...
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