CAJ | 학술논문

基于逆磁致伸缩效应,建立钢缆索索力传感器理论模型,分析了施加在缆索材料上的力信号(外力和应变)与磁信号(磁感应强度、磁场强度)之间的耦合关系.针对一种环式结构的索力传感器,对索力测量原理做了详细推导,可通过检测感应线圈的感应电压反映材料所受外力.传感器输出感应电压与空气间隙尺寸、外部激励磁场下的材料磁导率、激励磁场变化、加载外力变化等因素有关,重点分析了激励磁场变化和外力变化对传感器输出的影响.当外力是缓变力,可通过检测感应积分电压求得外力;当外力是交变力,直接通过感应电压求得外力;最后通过对磁场变化和外力变化影响分别进行了仿真,结果与理论分析基本一致,表明所建立的索力传感器理论模型可行.
기우역자치신축효응,건립강람색색력전감기이론모형,분석료시가재람색재료상적력신호(외력화응변)여자신호(자감응강도、자장강도)지간적우합관계.침대일충배식결구적색력전감기,대색력측량원리주료상세추도,가통과검측감응선권적감응전압반영재료소수외력.전감기수출감응전압여공기간극척촌、외부격려자장하적재료자도솔、격려자장변화、가재외력변화등인소유관,중점분석료격려자장변화화외력변화대전감기수출적영향.당외력시완변력,가통과검측감응적분전압구득외력;당외력시교변력,직접통과감응전압구득외력;최후통과대자장변화화외력변화영향분별진행료방진,결과여이론분석기본일치,표명소건립적색력전감기이론모형가행.
Based on Villari-effect, the theoretic mdel d the cable tension sensor is presented. The relationship between mechanical parameters such as stress, strain and electromagnetic parameters like magnetic field and magnetic induction field are discussed. One loop-shaped stinulative structure of cable tension sensor based on Villari--effect is proposed and cable tension sensor principle is deeply analysed. By measuring inductive voltage in inductive loops, cable tension stress may be measured. Sensor output may be determined by air clearance, magnetic permeability, magnetic field, stress and inductive loops denseness. The sensor output effects resulting from magnetic field and stress ate analysed respectively. When stress changes tardigradely, the cable tension stress may be measured by measuring inductive integral voltage. When stress changes expeditiously, the cable tension stress may be measured by measuring inductive voltage. Sensor sensibility may be determined by stress frequency, inductive loops denseness, magnetic field and nagnetic permeability. In addition, the sensor output effects from magnetic changing and stress changing have been analysed with emulational methods. The results indicate that sensor theory model is feasible.