High sensitivity compact M-Z interference temperature sensor and manufacturing method thereof

A temperature sensor and high-sensitivity technology, applied in thermometers, thermometers with physical/chemical changes, instruments, etc., can solve the problem of low sensitivity and achieve the effect of improving sensitivity, convenient temperature measurement, and large interference contrast

Inactive Publication Date: 2017-07-18
CHONGQING UNIV
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[0004] The invention provides a high-sensitivity compact M-Z interference temperature sensor and its ma...

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  • High sensitivity compact M-Z interference temperature sensor and manufacturing method thereof
  • High sensitivity compact M-Z interference temperature sensor and manufacturing method thereof
  • High sensitivity compact M-Z interference temperature sensor and manufacturing method thereof

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[0031] In order to enable those skilled in the art to better understand the technical solutions in the embodiments of the present invention, and to make the above-mentioned purposes, features and advantages of the embodiments of the present invention more obvious and understandable, the following describes the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings For further detailed explanation.

[0032] In the description of the present invention, unless otherwise specified and limited, it should be noted that the term "connection" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication of two elements, it can be Directly connected or indirectly connected through an intermediary, those skilled in the art can understand the specific meanings of the above terms according to specific situations.

[0033] to combine Figure 1...

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Abstract

The invention provides a high sensitivity compact M-Z interference temperature sensor and a manufacturing method thereof; the sensor comprises an input single-mode fiber, a microstructure fiber and an output single-mode fiber connected in sequence; the microstructure fiber is placed under a tested environment; the fiber core of the input single-mode fiber is respectively connected with the microstructure fiber core and an air hole filled with a high heat optical coefficient medium, thus using the microstructure fiber core to transmit partial the input single-mode fiber output light to the output single-mode fiber, and using the microstructure fiber air hole filled with the high heat optical coefficient medium to transmit the residual light to the output single-mode fiber; the output single-mode fiber transmits the received light to a spectral analyzer for spectral analysis, thus determining the temperature of the tested environment according to the spectral analysis result. The high heat optical coefficient medium is filled in the microstructure fiber, thus providing the high sensitivity super compact structure M-Z temperature sensor.

Description

technical field [0001] The invention belongs to the field of temperature detection, in particular to a high-sensitivity compact M-Z (Mach-Zehnder) interference temperature sensor and a manufacturing method thereof. Background technique [0002] Optical fiber M-Z interference sensor is a very widely used all-fiber interference device, which has excellent optical filtering characteristics. The M-Z interference sensor has two interference arms, one is called the reference arm, and the other is called the detection arm. In the sensing application, the detection arm is placed in the environment to be measured, and the light transmitted in the interference arm is affected by the environment to be measured. A phase difference between the lights in the reference arm causes a change in the interference fringe, which is used to detect the change to be measured. However, the traditional M-Z interference sensor is a discrete component, and the interference arm and the sensing arm are s...

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Application Information

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IPC IPC(8): G01K11/32
CPCG01K11/32
Inventor 邓明赵勇
Owner CHONGQING UNIV
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