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Title |
A Study on Temperature Properties Analysis for Tension Measurement of Steel Cables Using Magnetic Sensor
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Keywords |
자기적 장력센서 ; 강재케이블 ; 장력변환식 ; 온도보정계수 ; Magentic tension sensor ; Steel cable ; Tension transfer equation ; Temperature compensation coefficient |
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Abstract |
Measuring the tensile strength of steel cables used to support bridges is a critical inspection item in terms of the safety of a bridge. Today, cable tension is measured with the vibration method and loadcell. Recently, some advanced countries have conducted studies on measuring tension with magnetic method and are suggesting prospective results. Since there were no such studies ongoing in Korea, we began a study on measuring tension with magnetic method as we are undergoing researches to improve the precision of measurements.It is necessary to consider the influence for the magnetic field and the temperature of steel cables in tension measurement of magnetic method. In this paper, we tested an output characteristic of tension sensor according to temperature and deduced temperature compensation coefficient in the given magnetic field and applied the compensation coefficient to the tension measurement system in the lab. We analyzed and evaluated testing results for the output voltages of the tension sensor according to cable tensions.
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