An approach for estimating acoustic power in a pulse tube cryocooler
Sign Up to like & getrecommendations! Published in 2017 at "Cryogenics"
DOI: 10.1016/j.cryogenics.2017.08.009
Abstract: Abstract Acoustic power at the cold end of regenerator is the measure of gross cooling capacity for a pulse tube cryocooler (PTC), which cannot be measured directly. Conventionally, the acoustic power can only be derived… read more here.
Keywords: acoustic power; estimating acoustic; power; regenerator ... See more keywords
Acoustic power transfer for biomedical implants using piezoelectric receivers: effects of misalignment and misorientation
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Micromechanics and Microengineering"
DOI: 10.1088/1361-6439/ab257f
Abstract: Implantable medical devices (IMDs) can be powered wirelessly using acoustics with no need for a battery. In an acoustic power transfer system, which consists of a transmitter, medium, and a receiver, the power that the… read more here.
Keywords: power transfer; power; pmut; generated power ... See more keywords
Noninvasive treatment efficacy monitoring and dose control for high-intensity focused ultrasound therapy using relative electrical impedance variation*
Sign Up to like & getrecommendations! Published in 2017 at "Chinese Physics B"
DOI: 10.1088/1674-1056/26/5/054302
Abstract: As an effective therapeutic modality, high-intensity focused ultrasound (HIFU) can destroy tumour tissues by thermocoagulation with less metastasis, but it is still limited by inaccurate non-invasive temperature monitoring and efficacy evaluation. A model of electrical… read more here.
Keywords: acoustic power; impedance variation; treatment; impedance ... See more keywords
Engineering Efficient Acoustic Power Transfer in HBARs and Other Composite Resonators
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Microelectromechanical Systems"
DOI: 10.1109/jmems.2020.3009516
Abstract: We present analytic and experimental evidence highlighting the importance of acoustic impedance matching for efficient power transfer in RF-MEMS composite resonators such as high-overtone bulk acoustic mode resonators (HBARs) and thin-film piezoelectric on substrate (TPoS)… read more here.
Keywords: efficient acoustic; power transfer; power; acoustic power ... See more keywords