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electrical resistance variation
相关语句
  电阻改变
     The experimental results indicate that the electrical resistance variation of rock fluctuates with the variation of the internal fissures of rock.
     试验结果表明:岩石内部裂隙的变化将引起相应的岩石电阻改变;
短句来源
  “electrical resistance variation”译为未确定词的双语例句
     Test results show that CFRP alarm sensors can give good prediction to the macroscopical behavior of reinforced concrete beams. Especially,the electrical resistance variation in CFRP may produce an obvious signal at the moment when concrete cracks and steel yields,therefore an alarm is presented. It is concluded that the CFRP alarm sensor is practical for monitoring reinforced concrete elements.
     结果表明,CFRP预警传感器对于钢筋混凝土梁宏观行为的预测具有较好的效果,在混凝土开裂、钢筋屈服等关键时刻,其电阻信号发生突变,触发预警信号,该传感器对于钢筋混凝土类构件的监测具有实用性.
短句来源
  相似匹配句对
     Study of Electrical Resistance Tomography
     电阻层析成像技术的研究
短句来源
     Modeling of Electrical Resistance Tomography
     电阻层析成像系统仿真建模研究
短句来源
     Aspirin Resistance
     阿司匹林抵抗
短句来源
     Aspirin Resistance
     阿司匹林抵抗现象
短句来源
     The variation of I.
     研究结果表明:I.
短句来源
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  electrical resistance variation
The electrical resistance variation is also measured using a Wheatstone bridge.
      


The electrical resistance variations of Carbon Fiber Electrically Conductive Concrete for deicing or snow melting in long-term,freeze-thaw cycle,heating-cooling cycle,heating at room and refrigerator are studied in this paper.The rational power source in deicing or snow melting is found.The study provides a guide for the practical application of electrically conductive concrete in deicing or snow-melting.

 详细研究了用于路面融雪化冰的碳纤维导电混凝土在各种不同条件下电阻的变化规律,包括中长期冻融循环、升降温循环、常温加热、低温加热等,得到了融雪化冰时合适的电源类别,为导电混凝土用于路面融雪化冰的工程实际提供了重要指导。

The basic laws of electrical conduction by ions for rocks and the measuring methods of pulse non-polarization for electrical current are studied. The theoretical relation between the rate of electrical resistance and that of porosity for rocks is explained. The study on the electrical effects of limestone and sandstone containing NaCl solution under compressive stress is presented with the method of combining mechanics and electricity. The experimental facility is established and the complete experimental data...

The basic laws of electrical conduction by ions for rocks and the measuring methods of pulse non-polarization for electrical current are studied. The theoretical relation between the rate of electrical resistance and that of porosity for rocks is explained. The study on the electrical effects of limestone and sandstone containing NaCl solution under compressive stress is presented with the method of combining mechanics and electricity. The experimental facility is established and the complete experimental data of stress-strain-electrical resistance of rocks are achieved. The experimental results indicate that the electrical resistance variation of rock fluctuates with the variation of the internal fissures of rock. There is a minimum value for electrical resistance of rock in all electrical resistance-strain curves,by which the cracking stress of rocks can be justified and defined. In the process of rock fracture,there is a clear anti-symmetry between the change law of stress-strain curve and that of electrical resistance. Based on the experimental study and the stochastic property analysis of rock fracture variation,the equations of stress-strain-electrical resistance in sections are proposed with a new distinguishing feature,by which the regular stress of rocks and the remnant stress can be described. The complicated fracture characteristic of rocks can also be displayed clearly by the electrical resistance of rocks. It further verifies the associated state equations with rock compression through fitting the calculated results of the experimental data for limestone and sandstone,which can be used to reveal the evolution laws of rock fracture.

研究岩石离子导电基本规律和脉冲非极化电流测试方法,得出岩石电阻变化率与有效孔隙度变化率之间的理论关系;采用力学与电学参数结合的方法,研究压缩应力对含氯化钠溶液石灰岩、砂岩产生的电学效应,取得完整的应力–应变曲线和相应电阻–应变曲线试验数据。试验结果表明:岩石内部裂隙的变化将引起相应的岩石电阻改变;所有电阻–应变曲线上都存在一个岩石电阻最小值,并对应于岩石开裂应力;岩石断裂过程中,应力–应变曲线与电阻–应变曲线的变化规律具有明确的反对称性。岩石电阻变化能够明确表达压缩过程中复杂断裂的演化特性,提出并验证岩石断裂规律的状态方程。

Utilizing the electrical conductivity and piezoresistivity of CFRP(carbon fiber reinforced polymer),alarm sensors are produced by two methods, the post-layered method and the pre-layered method.This kind of sensor has obvious merits,such as low cost,corrosion free,and easy to acquire monitoring signals.It can give different alarm sounds according to the rupture of different CFRPs,which means it can distinguish the work phase of the structure.The experimental research of five reinforced concrete beams by using...

Utilizing the electrical conductivity and piezoresistivity of CFRP(carbon fiber reinforced polymer),alarm sensors are produced by two methods, the post-layered method and the pre-layered method.This kind of sensor has obvious merits,such as low cost,corrosion free,and easy to acquire monitoring signals.It can give different alarm sounds according to the rupture of different CFRPs,which means it can distinguish the work phase of the structure.The experimental research of five reinforced concrete beams by using this alarm sensor was conducted.Test results show that CFRP alarm sensors can give good prediction to the macroscopical behavior of reinforced concrete beams.Especially,the electrical resistance variation in CFRP may produce an obvious signal at the moment when concrete cracks and steel yields,therefore an alarm is presented.It is concluded that the CFRP alarm sensor is practical for monitoring reinforced concrete elements.

利用碳纤维增强复合材料(CFRP)的导电性和压电效应,根据碳纤维断裂时所形成的电阻阶跃信号,分别采用直接铺层和预先铺层2种方法制成对结构不同状态进行监测的CFRP预警传感器,该预警传感器具有造价低、耐腐蚀、监测信号易于获取等优点,并将此传感器应用于5根钢筋混凝土梁的试验研究.结果表明,CFRP预警传感器对于钢筋混凝土梁宏观行为的预测具有较好的效果,在混凝土开裂、钢筋屈服等关键时刻,其电阻信号发生突变,触发预警信号,该传感器对于钢筋混凝土类构件的监测具有实用性.

 
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