National Physical Laboratory, Teddington, UK.
IEEE Trans Ultrason Ferroelectr Freq Control. 2011 Apr;58(4):704-10. doi: 10.1109/TUFFC.2011.1863.
A novel drive system is described which improves the operational characteristics of piezoelectric actuators. Electronic controls to increase the range of movement across a wide temperature range usually need a temperature sensor for maximum effect. This paper describes a novel system that uses the polarization characteristics of the piezoelectric ceramic to reverse polarize the ceramic without a temperature measurement. Significant improvements in the operating temperature range for devices such as locks or valves are achieved.
本文介绍了一种改进压电致动器工作特性的新型驱动系统。为了在较宽的温度范围内增加运动范围，电子控制通常需要温度传感器才能达到最佳效果。本文描述了一种新颖的系统，该系统利用压电陶瓷的极化特性在无需温度测量的情况下对陶瓷进行反向极化。锁或阀等器件的工作温度范围得到了显著改善。
