Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Akihiro Oota"'
Autor:
Hideaki NOZATO, Takashi USUDA, Akihiro OOTA, Tamio ISHIGAMI, Seiji OKAMOTO, Ken YAMAMOTO, Hiroshi UNEJIMA, Kazuaki KAWAGUCHI, Teruo SAWADA, Izuru KANNO
Publikováno v:
Journal of the Japan Society for Precision Engineering. 77:800-806
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::44a406ee14dcba91941a37e10fc01e9b
https://doi.org/10.2493/jjspe.77.800
https://doi.org/10.2493/jjspe.77.800
Correction and evaluation of the effect due to parasitic motion on primary accelerometer calibration
Publikováno v:
Measurement. 43:719-725
Primary accelerometer calibration is carried out under the assumption that a vibration exciter gives a rectilinear motion to an accelerometer to be calibrated. However practical vibration given by the vibration exciter includes parasitic motion such
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::859e244e5295bc686526e5adc6132f8a
https://doi.org/10.1016/j.measurement.2010.02.005
https://doi.org/10.1016/j.measurement.2010.02.005
Publikováno v:
International Journal of Thermophysics. 29:42-50
A closed-cycle Joule–Thomson cryocooler for resistance thermometer calibration has been developed. It consists of a Gifford–McMahon mechanical refrigerator and a closed-cycle 3He Joule–Thomson expansion circuit that utilizes the isenthalpic exp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d12c41bcf8a8795a17a697a46adcbf6
https://doi.org/10.1007/s10765-007-0341-5
https://doi.org/10.1007/s10765-007-0341-5
Publikováno v:
IEEJ Transactions on Sensors and Micromachines. 126:612-620
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::32a6f16a9b15d037c9a7bdd6f7812b09
https://doi.org/10.1541/ieejsmas.126.612
https://doi.org/10.1541/ieejsmas.126.612
Publikováno v:
Eighth International Conference on Vibration Measurements by Laser Techniques: Advances and Applications.
In this study, the effect of demodulator unit characteristics on the calibration of a laser vibrometer is investigated. For this purpose, two commercial available laser vibrometers with analogue demodulator units are used in the experiments. The demo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7b44f79db0691e21f7c493eac5ca55a5
https://doi.org/10.1117/12.803331
https://doi.org/10.1117/12.803331
Publikováno v:
Seventh International Conference on Vibration Measurements by Laser Techniques: Advances and Applications.
In this paper, we outline a preliminary implementation of primary calibration for a laser vibrometer (LV) on the basis of newly proposed first ISO draft. The sine approximation method is applied to our calibration system. Under some different measure
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf2acee4370a2dcb4acb719f6369fe2a
https://doi.org/10.1117/12.693097
https://doi.org/10.1117/12.693097
Publikováno v:
Measurement Science and Technology. 25:035005
Zero shift caused by the low frequency response of charge amplifiers is one of the most significant factors in shock measurements with long duration, such as low shock calibration of accelerometers. In order to reproduce the same zero shift as the ch
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b0ab700472ed6606f0ebce82ba74e06f
https://doi.org/10.1088/0957-0233/25/3/035005
https://doi.org/10.1088/0957-0233/25/3/035005
Autor:
Osamu Takano, Yoshinori Kobayashi, Wataru Kokuyama, Naoki Kasai, Hideaki Nozato, Akihiro Oota
Publikováno v:
ACTA IMEKO. 2:61
To establish an easy-to-use traceability system for laser vibrometers in vibration acceleration standard, a highly accurate reference standard is required. In this study, we investigated the measurement reliability of a commercial laser vibrometer wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dd9e35b67d28cfbea90c163e35727bb2
https://doi.org/10.21014/acta_imeko.v2i2.116
https://doi.org/10.21014/acta_imeko.v2i2.116
Publikováno v:
ACTA IMEKO. 2:41
This manuscript reports the result of an investigation into two types of digital filters for numerical differentiation of the displacement signal in the case of primary shock calibration of accelerometers. The first is a difference method with a 4th-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f04a69fe00940c72428692383248376
https://doi.org/10.21014/acta_imeko.v2i2.62
https://doi.org/10.21014/acta_imeko.v2i2.62
Publikováno v:
Measurement Science and Technology. 22:125109
This study describes the uncertainty of measurement about accelerometer sensitivity in shock calibration based on ISO 16063-13. The typical shock approximates to a sine-squared waveform with peak acceleration in the range from 200 to 5000 m s−2 and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e44db36ac34641f8e415c3640dad8d65
https://doi.org/10.1088/0957-0233/22/12/125109
https://doi.org/10.1088/0957-0233/22/12/125109