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Internal temperature distribution test system of explosive melting and casting molding process

A technology of melting and casting, internal temperature, applied in thermometers, thermometers with physical/chemical changes, measuring devices, etc., can solve the problems of single temperature signal perception and measurement, and achieve continuous temperature measurement, strong anti-interference ability, structural concise effect

Active Publication Date: 2015-08-12
ZHONGBEI UNIV
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Problems solved by technology

[0011] The technical problem to be solved by the present invention is to effectively shield the Bragg grating against the elastic-optic effect of the thermal stress response, and simply sense and measure the temperature signal, so that the fiber grating temperature measurement technology can be applied in the field of melting and casting explosives

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  • Internal temperature distribution test system of explosive melting and casting molding process
  • Internal temperature distribution test system of explosive melting and casting molding process
  • Internal temperature distribution test system of explosive melting and casting molding process

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Embodiment Construction

[0032] The internal temperature distribution testing system of the explosive melting and casting molding process involved in the present invention is divided into four parts: an optical fiber Bragg grating sensor array 10 , a signal detection and demodulation device 30 , a service and monitoring device 40 and an explosive melting and casting device 20 . The overall structure of the system is as Figure 6 .

[0033] The explosive melting and casting device 20 is composed of a mold, a process cover, a thermal insulation riser and explosives in the mold, and its main function is to realize the melting and casting of explosives and place the fiber Bragg grating sensor array 10 to monitor the temperature. The fiber Bragg grating sensor array 10 consists of several grating sensor units connected in series by an optical fiber and arranged in an "S" shape to measure the temperature of multiple points in the explosive melting and casting device 20 and output optical signals. The signa...

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Abstract

The invention discloses an internal temperature distribution test system in the melting and casting molding process of explosives, which consists of four parts: an optical fiber Bragg grating sensor array, a signal detection and demodulation device, a service and monitoring device, and an explosive melting and casting device. The optical fiber Bragg grating sensor array consists of The optical fibers with several grating sensors are arranged in an "S" shape and fixed on the 1 / 2 central axis of the explosive melting and casting device. The grating sensors are arranged at a certain distance and distributed in an array. The signal detection and demodulation device is located at The explosive melting and casting device is connected to the optical fiber, and the service and monitoring device circuit is connected to the signal detection and demodulation device. The invention effectively shields the elastic-optic effect of the Bragg grating in response to thermal stress, and can sense and measure temperature signals in a single way, so as to continuously and multi-point monitor the change of the internal temperature field in the explosive melting and casting process.

Description

technical field [0001] The invention belongs to the technical field of optical fiber sensing, and relates to a testing system for testing the internal temperature distribution in the melting and casting molding process of explosives. More specifically, the present invention relates to a continuous, multi-point distributed optical fiber grating temperature measurement system built in an explosive melting and casting system. technical background [0002] Temperature and temperature field are the primary concerns and key issues in the study of explosive melting and casting molding process and mechanism. They are the main parameters for studying and controlling the crystallization and solidification process of explosives and the formation of abnormal quality characteristics. , the temperature dynamic change in the solidification process, the ambient temperature, etc., which are reflected in the temperature and temperature field that vary with time and process. A large number of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01K11/32G01K11/3206
Inventor 袁俊明王高马松闻强王建华于雁武刘玉存常双君
Owner ZHONGBEI UNIV
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