Temperature sensor based on Mach-Zehnder interference structure

• Main Authors: YANG ZHONGGANG, YU GUANG'AN, BI LINXU, RU YUXING, SUN MAOQIANG
• Format: Patent
• Language: Chinese; English
• Published: 18.12.2018
• Subjects: MEASURING; MEASURING QUANTITY OF HEAT; MEASURING TEMPERATURE; PHYSICS; TESTING; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR

The invention discloses a temperature sensor based on a Mach-Zehnder interference structure, and belongs to the technical field of optical fiber sensors. The main structure of the temperature sensor comprises a pumping source (1), an optical wavelength division multiplexer (2), an Er-doped optical fiber. By use of the temperature sensor, a sinusoidal signal is taken as a modulation signal, no high-frequency interference is generated, and the temperature sensor has the characteristics of being reliable in working, high in sensing accuracy, wide in application range and the like. 本发明的种基于马赫泽德尔干涉结构的温度传感器属于光纤传感器技术领域。其主要结构有泵浦源(1)、光波分复用器(2)、掺铒光纤(3)等。本发明用正弦信号作为调制信号，不会产生高频干扰，具有工作更可靠、传感精度高、应用范围广等特点。