Ultrasonic Can Lose Energy Collector

With the development of microelectronics technology, the applications of micropower electronic devices gradually become a hot spot of the international research in thefield of military and civilian. Due to the particularity of the environment, such as in thenuclear equipment system, vacuum chamber, cylinders, have led to great difficultly insupplying power for internal electronic equipment and affected the normal work ofelectronic equipment. Piezoelectric material has force electric coupling characteristics,it is ultrasonic piezoelectric that uses this characteristic to converts mechanical signals(ultrasonic) into electrical signals, making ultrasonic piezoelectric transducers transmitin different media in order to solve the problem of power supply. In this paper,ultrasonic transmitting energy and energy harvesting system are designed. The wholesystem consists of two parts, transmission and reception. The launch part is composedof ultrasonic energy generator and ultrasonic transmitting transducer, and the receivingpart is composed of ultrasonic receiving transducer and energy collector. It often usesthe good performances of ultrasonic such as powerful penetration, good focused andhigh transmission energy to design two methods for energy transmission, one is elasticsolid coupling and the other is air coupling to collect energy that stored in energyharvesting circuit. This experiment uses ultrasonic elastic solid force-electric couplingtransmitting energy method is succeed in supplying power to the lithium battery, whichthe maximum transmission power can reach264.17mW, and transmission efficiency is36%, has achieved the transmitting energy form without any wire.