Zobrazeno 1 - 10
of 337
pro vyhledávání: '"Sadayuki Ueha"'
Publikováno v:
IEEE Transactions on Ultrasonics, FerroelectrIcs, and Frequency control. 60(No. 10):2175-2188
In this paper, we present a polyurea transducer that works at 100 MHz under water. The transducer was designed using an equivalent circuit model so that an aluminum (top)-polyurea-aluminum (bottom)-polyimide layer had a resonant frequency of 100 MHz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::601fe06b67b60d47a1c246a9d460e59c
http://t2r2.star.titech.ac.jp/cgi-bin/publicationinfo.cgi?q_publication_content_number=CTT100661051
http://t2r2.star.titech.ac.jp/cgi-bin/publicationinfo.cgi?q_publication_content_number=CTT100661051
Publikováno v:
IEICE Electronics Express. 6:317-321
In this paper, we propose a configuration for the two dimensional array of multi-degree-of-freedom (MDOF) ultrasonic actuators suitable for two-dimensionally moving table. The MDOF motions of a ball rotor are achieved by the combination of two bendin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8563cacb25346685da063e6cc4b53e1a
https://doi.org/10.1587/elex.6.317
https://doi.org/10.1587/elex.6.317
Publikováno v:
Acoustical Science and Technology. 30:42-47
Ultrasonic motor is one of the most promising candidates for arranging the joints of robot arms or fingers. In this paper, we design and fabricate a robot finger involving two joints with four degree-of-freedom (DOF) based on two hybrid multi-DOF pie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f65596cd03fdc2c737826e1695b4b190
https://doi.org/10.1250/ast.30.42
https://doi.org/10.1250/ast.30.42
Publikováno v:
J. Electroceram. 20:145-151
If a pipe end is faced at a piston-vibrating surface with a small gap in liquid, the liquid is suctioned into the pipe. The present ultrasonic pump is based on this phenomenon to induce flow. For a low-profile configuration, we introduce a 30-mm-diam
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::514c3326d95a29b5deab3cb3c6855076
http://t2r2.star.titech.ac.jp/cgi-bin/publicationinfo.cgi?q_publication_content_number=CTT100572497
http://t2r2.star.titech.ac.jp/cgi-bin/publicationinfo.cgi?q_publication_content_number=CTT100572497
Autor:
Kazumitsu Nukui, Sadayuki Ueha, Kenzo Ikeda, Kentaro Nakamura, Hisanori Takahashi, Daisuke Koyama
Publikováno v:
Acoustical Science and Technology. 29(No. 4):274-282
Here we propose a novel measuring method of the liquid level in a water tank using the flexural vibration in a rod. With changing the water level, the frequency response of the vibrating rod is also changed due to the change of its radiation impedanc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4bf927cf1e9b1c6b9bac053d7e3a318b
http://t2r2.star.titech.ac.jp/cgi-bin/publicationinfo.cgi?q_publication_content_number=CTT100562334
http://t2r2.star.titech.ac.jp/cgi-bin/publicationinfo.cgi?q_publication_content_number=CTT100562334
Publikováno v:
Japanese Journal of Applied Physics. 47:4276-4281
In this paper, we present numerical simulations and experiments of air flow induced in a gap between a piezoelectric bending vibrator and a reflector. Half of the simulation is based on the coupled analysis of piezoelectric elastic vibration and soun
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1b5d945d8bda6df7c195506a5a6fceec
https://doi.org/10.1143/jjap.47.4276
https://doi.org/10.1143/jjap.47.4276
Publikováno v:
Japanese Journal of Applied Physics. 47:4044-4047
Focusing on the possibilities of polyurea as an acceleration sensor with characteristics such as flexibility, durability against large deformation, good linearity, and capability of deposition in dryprocess and insolubility in organic solvent, we fir
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9c5c2364ae7934d1eb7a9ad1a721c84e
https://doi.org/10.1143/jjap.47.4044
https://doi.org/10.1143/jjap.47.4044
Publikováno v:
Japanese Journal of Applied Physics. 47:4296-4299
Purification of wastewater is indispensable to civil engineering construction. Since natural sedimentation requires much time, coagulants are used to increase the sedimentation rate. However, this may cause environment disruption. In this study, we i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6fe59f16a989f800b48121af74c11052
https://doi.org/10.1143/jjap.47.4296
https://doi.org/10.1143/jjap.47.4296
Publikováno v:
Proceedings of SPIE Optics East 2007. 6770:1-8
An AWG-based interrogator is tested for FBG microphone array. Element microphones composed of FBG bonded on membrane are connected in series in one fiber cable and illuminated by a wideband source. The reflected light is processed with the system con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4b7147e1081543f25aa533a683a376ca
http://t2r2.star.titech.ac.jp/cgi-bin/publicationinfo.cgi?q_publication_content_number=CTT100560429
http://t2r2.star.titech.ac.jp/cgi-bin/publicationinfo.cgi?q_publication_content_number=CTT100560429
Publikováno v:
Japan Journal of Applied Physics. 46(No. 7B):4486-4489
In this study, the characteristics of an ultrasonic beam radiated by a variable-line-focus-beam transducer were numerically calculated by finite-difference time domain (FDTD) method and liquid-elastic wave reflection theory. The interference ripple c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8b5a495e67579624c7e65281008de6be
http://t2r2.star.titech.ac.jp/cgi-bin/publicationinfo.cgi?q_publication_content_number=CTT100544187
http://t2r2.star.titech.ac.jp/cgi-bin/publicationinfo.cgi?q_publication_content_number=CTT100544187