Mining optical fiber temperature sensor probe

A sensor probe, optical fiber temperature technology, applied in thermometers, thermometers with physical/chemical changes, instruments, etc., can solve the problems of carrying and installation troubles, sensor size (increased length, etc.), to achieve easy portability and reduce the difficulty of installation and operation , the effect of easy installation

Active Publication Date: 2013-01-16
SHANDONG MICRO PHOTOGRAPHIC ELECTRONICS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the traditional usage must ensure that the drilling hole is relatively straight. When the detection depth is required to be very deep, the size (length) of the sensor is greatly increased, and it is very troublesome to carry and install in mines with limited space.

Method used

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  • Mining optical fiber temperature sensor probe
  • Mining optical fiber temperature sensor probe
  • Mining optical fiber temperature sensor probe

Examples

Experimental program
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Embodiment Construction

[0011] Such as figure 1 A block diagram of the sensor design is shown. A mining optical fiber temperature sensor probe, which includes a temperature-sensitive area housing 17 with an opening at one end and a built-in fiber grating 20, an optical fiber 19 connected to the optical fiber grating 20, an optical fiber 19 sleeved outside the optical fiber 19 and fixedly connected to the temperature-sensitive area housing 17 The anchor head 2, the other end of the anchor head 2 is fixedly connected to the head of the coiled tube 3, and the coiled tube 3 is a coiled tube that can be bent freely but cannot be twisted. The sensor element is a fiber Bragg grating, which is one of the commonly used optical components in optical communication and fiber optic sensing. It can sense temperature changes and convert temperature changes into wavelength changes. It only needs to analyze the wavelength of The relative change can be used to obtain the change of temperature, so as to realize temper...

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Abstract

The invention discloses a mining optical fiber temperature sensor probe which comprises a temperature sensing area shell, an optical fiber and an anchor head, wherein one end of the temperature sensing area shell is provided with an opening; a fiber bragg grating (FBG) is arranged in the temperature sensing area shell; the optical fiber is connected with the FBG; the anchor head is sleeved outside the optical fiber and is fixedly connected with the temperature sensing area shell; the other end of the anchor head is fixedly connected with the head of a coil pipe; and the coil pipe can be freely bent and cannot be twisted. The mining optical fiber temperature sensor probe can be applied to measuring the temperature of the inner part of a coal mine, particularly deep rock. According to the probe, the FBG is adopted as a temperature sensing element, the coil pipe is adopted as a protecting pipe, and the anchor head which is provided with bulging thorns and is used for fixing the tail end of a temperature sensing area, and an expansion device used for fixing the tail part of a sensor and a coal seam are designed. The mining optical fiber temperature sensor probe has a simple and reliable structure, is convenient to carry and mount under a mine, and is convenient to use.

Description

technical field [0001] The invention relates to an optical fiber sensor probe used for coal seam and rock temperature detection in coal mines. The sensor is easy to carry and install, and can complete the temperature detection of underground rock formations, especially deep rock formations. Background technique [0002] In recent years, with the rapid and violent development of my country's economy, more and more environmental and safety production problems have emerged. In recent years, large-scale safety accidents that harm personal safety have occurred frequently in coal mines in my country. Safety accidents such as water inrush, gas explosion, coal mine fire, and roof collapse have occurred from time to time. To maintain normal production and life, these problems must be effectively resolved. Temperature detection is one of the key technologies to timely discover problems inside mines, especially coal seams and rock formations. Through the temperature changes of coal se...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01K11/32G01K11/3206
Inventor 倪家升刘统玉赵燕杰王宗江高超魏苒刘真梅
Owner SHANDONG MICRO PHOTOGRAPHIC ELECTRONICS
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