Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Tomiharu Yamaguchi"'
Publikováno v:
Sensors, Vol 22, Iss 12, p 4406 (2022)
In principle, the recently proposed capacitive-coupling impedance spectroscopy (CIS) has the capability to acquire frequency spectra of complex electrical impedance sequentially on a millisecond timescale. Even when the measured object with time-vary
Externí odkaz:
https://doaj.org/article/e7e665bf8b384cd8a35aef40c694f7d4
Publikováno v:
Sensors, Vol 21, Iss 21, p 6951 (2021)
Herein, we propose an impedance spectroscopy method using a mode-switching nonsinusoidal oscillator and apply this method for measuring the impedance of biological tissues and continuous impedance measurement. To obtain impedance spectra over a wide
Externí odkaz:
https://doaj.org/article/dce32157d747439a8e195c48adcd00fb
Autor:
Tomiharu Yamaguchi, Akinori Ueno
Publikováno v:
Sensors, Vol 20, Iss 21, p 6392 (2020)
In this study, we propose a new short-time impedance spectroscopy method with the following three features: (1) A frequency spectrum of complex impedance for the measured object can be obtained even when the measuring electrodes are capacitively coup
Externí odkaz:
https://doaj.org/article/57bac7454c754f75844466b5e276aabe
Autor:
Tomiharu Yamaguchi
Publikováno v:
IEEJ Transactions on Sensors and Micromachines. 142:154-159
Publikováno v:
IEEJ Transactions on Sensors and Micromachines. 139:296-302
Humidity sensors based on QCM (quartz crystal microbalance) have been developed using an anodized alumina thin‐film as a sensing material. An aluminum thin‐film is deposited on a silver‐co...
Autor:
Akinori Ueno, Tomiharu Yamaguchi
Publikováno v:
Sensors, Vol 20, Iss 6392, p 6392 (2020)
Sensors
Volume 20
Issue 21
Sensors (Basel, Switzerland)
Sensors
Volume 20
Issue 21
Sensors (Basel, Switzerland)
In this study, we propose a new short-time impedance spectroscopy method with the following three features: (1) A frequency spectrum of complex impedance for the measured object can be obtained even when the measuring electrodes are capacitively coup
Publikováno v:
IEEJ Transactions on Sensors and Micromachines. 138:471-476
Publikováno v:
IEEJ Transactions on Sensors and Micromachines. 138:376-381
Publikováno v:
Sensors
Volume 21
Issue 21
Sensors, Vol 21, Iss 6951, p 6951 (2021)
Sensors (Basel, Switzerland)
Volume 21
Issue 21
Sensors, Vol 21, Iss 6951, p 6951 (2021)
Sensors (Basel, Switzerland)
Herein, we propose an impedance spectroscopy method using a mode-switching nonsinusoidal oscillator and apply this method for measuring the impedance of biological tissues and continuous impedance measurement. To obtain impedance spectra over a wide
Publikováno v:
2019 IEEE SENSORS.
Hydrogen gas sensors using stacked WO 3 -based films with interspace has been demonstrated. In order to enhance hydrogen sensitivity and selectivity, porous WO 3 +TiO 2 sensing films are deposited and stacked by RF sputtering and thermal treatment. A