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Concrete internal temperature detecting device based on induction princinple

The technology of an internal device and a detection device is applied to a temperature detection device and the temperature detection inside concrete. It can solve the problems of power supply of the concrete integrity damage detection device, etc., and achieve the effect of easy maintenance and debugging, simple operation, and long-term stable operation

Inactive Publication Date: 2007-08-29
XIAN UNIV OF TECH
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a concrete internal temperature detection device based on the principle of induction. The device uses induction power supply and signal transmission to solve the problem of damage to the integrity of the concrete by the existing concrete internal temperature detection and the power supply of the detection device.

Method used

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  • Concrete internal temperature detecting device based on induction princinple
  • Concrete internal temperature detecting device based on induction princinple

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Embodiment

[0031] According to the required voltage of the circuit and the distance between internal and external devices, the diameter of the copper wire of the first coil 5 can be selected as 0.40mm, the number of turns is 50 turns, and the diameter of the coil is 120mm; the diameter of the copper wire of the second coil 4 is 0.40mm, and the number of turns is 80 turns, and the coil diameter is 1200mm; according to the real-time processing capability and power consumption of the circuit, the second CPU 2 adopts the model PIC12C508 / 509, and the first CPU 7 adopts the model STC12C5052, and selects I according to the required detection accuracy and power consumption. 2 C bus temperature sensor TMP275.

[0032] The detailed connection of each component and circuit is shown in Figure 2 and Figure 3 .

[0033]In Fig. 2, the circuit connection relation of modulation circuit 3:

[0034] The induction coil (antenna) L2 and the capacitor C11 form a parallel resonant circuit, and the resonant fr...

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Abstract

The invention discloses a concrete internal temperature detection device based on induction principle including the devices buried inside and outside of concrete. The internal device includes temperature sensor, the second CPU, modulation circuit and the second coil, which is used to receive and process the internal temperature information, and code the information for the signals external device can identify to send out. The external device includes the first coil, oscillation power amplification circuit, analog processing circuit, the first CPU and a communication interface, which are used to receive data from internal device, decode them to communicate with PC and provide energy for the internal device.

Description

technical field [0001] The invention belongs to the technical field of temperature detection, and relates to a temperature detection device, in particular to a temperature detection device applied to the interior of concrete without external electrical contacts and power supply in construction projects such as roads, bridges, and railways. Background technique [0002] In the pouring process of laying railway concrete, the temperature change inside the concrete has a great influence on the quality of the concrete pouring parts. If it is not controlled, it will seriously affect the pouring quality and life of the concrete. At present, there are the following three methods for the internal temperature detection Main problems: (1) It is impossible to directly supply power to the data acquisition equipment, which brings restrictions on the power consumption of the data acquisition equipment; (2) The data acquisition equipment cannot directly lead out the signal detection line fro...

Claims

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Application Information

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IPC IPC(8): G08C19/00G08C19/16
Inventor 宋念龙李琦谢国沈红彬
Owner XIAN UNIV OF TECH
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