This paper describes the design, modelling and simulation of an acoustic microsystem in a pulse-echo ultrasonic application. The microsystem, used as emitter and receiver of ultrasonic signals, consists of a bulk micromachined suspended membrane. During emission, the membrane is placed in an oscillator loop and is thermally actuated at its resonance frequency (≈ 40 kHz). This frequency is sligh...

The applicabilities of single-crystal chemical vapour deposition diamond sensors and 4H-SiC diodes for particle spectroscopy in high-temperature environments are investigated. spectroscopic performance the sensor materials is measured as function temperature, from room temperature to 500 °C. Previously published measurements showed a stable response sCVD up 200 In this follow-up experiment, ran...

Potentially high-performance lithium metal cells in extreme high-temperature electrochemical environments is a challenging but attractive battery concept that requires stable and robust electrolytes to avoid severely limiting lifetimes of the cells. Here, properties tailored polyester polycarbonate diols as soft segments polyurethanes are investigated electrochemically evaluated for use solid p...