Single-port device for detecting temperature and refractive index of flowing water at the same time

• Main Authors: HE RUSHUANG, ZHANG BIN, WANG QIANLONG, QIAN MENG, ZHANG LINGFEN, BAI MEI, TAO WEIDONG
• Format: Patent
• Language: Chinese; English
• Published: 05.11.2014
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; MEASURING QUANTITY OF HEAT; MEASURING TEMPERATURE; PHYSICS; TESTING; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR

The utility model discloses a single-port device for detecting the temperature and the refractive index of flowing water at the same time. The single-port device comprises a constant temperature water tank, a water pump, a fiber grating sensor, an optical circulator, an ASE light source and a fiber spectrometer. The fiber grating sensor is composed of a double layer protective casing and a single-mode fiber provided with cascaded fiber grating which is sensitive to temperatures and refractive indexes, the upper portion of the double layer protective casing is provided with an inlet pipe and an outlet pipe, the end face of the tail end of the single-mode fiber is plated with a silver film, the upper end of the single-mode fiber is fixed on the top of the double layer protective casing, and the part, of the single-mode fiber, arranged in the double layer protective casing is completely sealed and suspended in the double layer protective casing, the constant temperature water tank is connected with the inlet pip