Research on the application of piezoelectric force sensor based on tire dynamic balance detection technology

The sensor is an important component in obtaining signal of the tire dynamic balance detection system. It is an apparatus converted the vibration signal generated by the imbalance into electric signal without distortion. Therefore, the number and mounting position of the sensors, the mounting and preloading methods are key elements should be researched. During this tire balancing detection system, according to the frequency range of the signal, piezoelectric force sensor of KISTLER is adopted. Detailed steps of the sensor mounting and preloading are put forward. Based on the abnormality signals come from engineering practice, it analysis the key problems that may occur in the process of installation and preload. It discusses the influence of sensor nonlinearity on the measurement accuracy. Furthermore, the best calibration test weight value of different models of tire balancing test machine is determined by experiment. Sensors' Correlation effects on the accuracy of plane separation are also researched. It provides a theoretical basis for the mechanical structure design. It laid a foundation for the tire balancing machine design, which is with a high plane separation accuracy. © 2005 - 2013 JATIT & LLS. All rights reserved.