Optical fiber Bragg grating sensor for simultaneously measuring concentration and temperature of petroleum hydrocarbon and manufacturing method of optical fiber Bragg grating sensor

• Main Authors: BIAN CHAO, ZHANG JIANWEI, ZHONG NIANBING, FENG CANGXU
• Format: Patent
• Language: Chinese; English
• Published: 01.03.2022
• Subjects: ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS; MEASURING; MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR; PHYSICS; TARIFF METERING APPARATUS; TESTING

The invention relates to an optical fiber Bragg grating sensor for simultaneously measuring the concentration and temperature of petroleum hydrocarbon and a manufacturing method, and belongs to the technical field of electronic measuring devices. The sensor comprises an optical fiber Bragg grating area and an optical fiber area connected with the optical fiber Bragg grating area, the optical fiber Bragg grating area is divided into a temperature sensing area and a petroleum hydrocarbon concentration and temperature sensing area, and the petroleum hydrocarbon concentration and temperature sensing area of the optical fiber Bragg grating area is composed of an optical fiber Bragg grating and a petroleum hydrocarbon sensitive layer coated on the optical fiber Bragg grating. One end of the petroleum hydrocarbon concentration and temperature sensing area is connected with the temperature sensing area, and the other end is connected with the optical fiber area; the temperature sensing area of the optical fiber Bragg