Abstract: This paper describes reduction of the number of circuit blocks in the control signal generation circuits for the piezoelectric energy harvesting interface circuits. Piezoelectric energy ...

Abstract: pMUTs (piezoelectric micromachined ultrasonic transducer) have attracted much attention as transducers that have a good acoustic impedance matching with air and water medium. Although MEMS ...

Structures are used for piezoelectric energy harvesters as a way of redirecting the path of an inputted force so that the piezoelectric element can better convert the mechanical energy to electrical ...

Ultrasonic energy is widely used to sense the presence of nearby objects and even determine their distance if needed, as well as to measure fluid flow rates in industrial and scientific applications.

Two tuners were developed for this receiver. The more sensitive one uses tetrode transistors in the RF amplifier, mixer and oscillator. Its disadvantages lie in a much higher cost and a 12 to 14 db ...