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Optical fiber temperature sensor

An optical fiber temperature and sensor technology, used in thermometers, thermograms, thermometer parts, etc., can solve the problem of inability to directly use optical fiber temperature monitoring devices, and achieve the effects of excellent insulation, rust prevention, and easy exchange.

Active Publication Date: 2014-09-24
TOSHIBA MITSUBISHI-ELECTRIC IND SYST CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, tunnel disaster prevention equipment can be applied to large-scale structural parts, or large-scale linear structures represented by tunnels, but it is impossible to directly use optical fiber temperature monitoring devices in the extremely narrow space inside the machine

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] figure 1 It is a perspective view showing an edge heater provided with the optical fiber temperature sensor according to Example 1 of the present invention. in figure 1 Among them, on the lower surface of the rough strip 1 made of sheet material, a heating coil 2 and a heat-resistant plate 3 are arranged oppositely, and an elliptical side heating is arranged between the heating coil 2 and the heat-resistant plate 3 Optical fiber temperature sensor for device4.

[0053] Such as figure 2 As shown, the optical fiber temperature sensor 4 for the side heater is formed with a frame hole 80, and the frame hole 80 is inserted figure 1 The elliptical radial core 6 is shown. The heating coil 2, the heat-resistant plate 3, and the optical fiber temperature sensor 4 are arranged in the lower part of the recess of the C-shaped core 5. In addition, the heating coil 2, the heat-resistant plate 3 (not shown), and the optical fiber temperature sensor 4 (not shown) are also arranged on th...

Embodiment 2

[0068] Figure 5 (a) is a perspective view showing a strip heater provided with an optical fiber temperature sensor according to Example 2 of the present invention. Figure 5 (b) is a cross-sectional view showing the optical fiber temperature sensor according to the second embodiment of the present invention.

[0069] in Figure 5 In the illustrated embodiment 2, on the inner lower surface side of the box-shaped heating coil 2a, four flat-plate-shaped optical fiber temperature sensors 4a to 4d are sequentially arranged along the longitudinal direction of the heating coil 2a. On the upper surfaces of the optical fiber temperature sensors 4a to 4d, a heat-resistant plate 3a is arranged, and the heat-resistant plate 3a covers the rough plate tape 1.

[0070] The shape of the optical fiber temperature sensors 4a to 4d for the strip heater is preferably a flat surface. The reason is that the strip heater is formed by the wound heating coil 2a, and its surface facing the rough strip 1 is...

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Abstract

The invention provides an optical fiber temperature sensor which can keep on monitoring the temperatures of an expected position in an induction heating apparatus for steel hot rolling lines. A cable (13) is accepted in a frame (8,9) formed by extremely thin sheets which are made of electrical insulating material same with the materials forming the induction heating apparatus to form the optical fiber temperature sensor. A plurality of extremely thin cylindrical materials (14) formed by the materials same with the frame materials are accepted in a plurality places in the frame; the cable (13) is winded to have a length more than a length equivalent to distance resolution and is not fixedly winded on each material of the plurality of extremely thin cylindrical materials (14) so as to form a plurality of detection rings (15) which are utilized to detect temperatures of a plurality of places.

Description

Technical field [0001] The present invention relates to an optical fiber temperature sensor that always monitors the temperature inside an induction heating device used in a hot rolling line for steel. Background technique [0002] In a hot rolling line for steel, a heating furnace heats a material to be heated (rolled material) to a temperature at which rolling can be performed in advance, and a rough rolling mill shapes the heated material into a state called a rough strip. In addition, the finishing mill forms the rough plate into a thin plate having a desired thickness and width. In such a hot rolling line for steel, an induction heating device is used for the purpose of raising and soaking the temperature of the rough strip during line conveyance and reducing the load on the rolling mill. [0003] As this induction heating device, generally known are edge heaters for the purpose of raising the temperature of both edge portions of the rough strip, and strip heaters for the pur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01K11/32G01K1/08B21B38/00
CPCG01J3/0218G01K1/028G01K1/045G01K1/08G01K11/32G01K2213/00H05B6/10
Inventor 桥本英二堂上康治小幡健志
Owner TOSHIBA MITSUBISHI-ELECTRIC IND SYST CORP
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