On-line temperature measurement device for asphalt pavement paving
A technology for paving temperature and asphalt pavement, which is applied in the field of online temperature measurement devices, can solve problems such as not being suitable for the normal operation of infrared thermal imaging cameras, and achieve the effects of fast measurement speed, simple structure and easy operation
Inactive Publication Date: 2016-05-04
YANSHAN UNIV
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However, the external ambient temperature is relatively high during asphalt paving, and the paving temperature is generally around +130°C to +180°C, which is far beyond the maximum normal operating temperature of +40°C for infrared cameras. The environment is not suitable for the normal operation of the infrared camera
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[0017] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0018] The connection block diagram of each part of the present invention is referring to figure 1 . The working process of the present invention is: use a thermal imager to collect thermal image information, transmit the information to a computer for analysis and processing through a matching circuit, and obtain the temperature of each point on the entire road surface; use a pulse encoder to locate the road surface position of each temperature measurement point , so that the temperature value of each point measured on the thermal imager display corresponds to the specific position of the road surface; by controlling the liquid cooling system to ensure that the infrared thermal imager works within the rated operating temperature range, if it exceeds the rated operating temperature range, it will be connected with the computer The connected alarm circui...
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The invention discloses an asphalt pavement paving temperature on-line measurement device. A thermal infrared imager of the on-line measurement device is arranged in a cooling box of a liquid cooling system, the cooling box wall totally consists of three layers, gaps are left among all layers, asbestos with heat insulation effects is filled in the gap between the outermost layer and the secondary outer layer, circulation cooling liquid with cooling effects is encapsulated in the gap between the secondary outer layer and the inner layer, a pulse coder and the thermal infrared imager transmit information to a computer for carrying out data analysis processing through a matched circuit, the temperature around the thermal infrared imager is controlled to be within the range being 0 to +40 DEG C through a calculation control liquid cooling system, and if the temperature exceeds the rated work temperature range, or the paving temperature does not conform to the paving requirement, a warning circuit connected with the computer can give a warning. The asphalt pavement paving temperature on-line measurement device has the advantages that the on-line measurement of the paving temperature of the asphalt pavement can be realized in high-temperature environment, the asphalt paving temperature can be enabled to be in the normal paving range, in addition, the temperature analysis on the concrete road segment can be conveniently realized, and the goal of improving the pavement paving quality is reached.
Description
technical field [0001] The invention relates to an on-line temperature measuring device, in particular for on-line measurement of asphalt pavement paving temperature. Background technique [0002] The paving temperature determines the overall pavement performance of the mixture, mainly including the overall compaction and the viscosity between the upper and lower layers, so the detection of the paving temperature must be paid attention to. In the current construction, the control of the extra viscosity of hot mix asphalt mixture is mostly limited to the point-type temperature measurement method. Due to the shortcomings of the point-type temperature measurement method, such as large randomness of temperature measurement, long delay time of temperature measurement, and the need for contact for temperature measurement, it is harmful to the road surface. Quality control is very limited. Practice has shown that thermal imaging cameras play a very important role in improving the ...
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IPC IPC(8): G01J5/00
Inventor 张玉存侯新玉张雷强霍东辉尚志宏
Owner YANSHAN UNIV