TY - GEN
T1 - Development of an absolute displacement sensor and its improvement in high frequency region
AU - Kai, Takashi
AU - Akiyama, Masaya
AU - Nakamura, Yukinori
AU - Wakui, Shinji
PY - 2011/9/21
Y1 - 2011/9/21
N2 - In the field of vibration control, detection of absolute displacement signal is being required in order to implement a sky-hook spring. Then, two kinds of absolute displacement sensors have been already proposed without utilizing integrators to avoid a drift problem. At first, it is described how and why the sensors should be developed in this paper. Next, structures and characteristics of the proposed sensors are compared with each other to reveal their differ-ences. When the bandwidths are expanded in order to apply the sensors to industrial scenes, resonant peaks will be appeared in both low and high frequency regions. Whereas the former resonance can be suppressed by inner velocity feedback, the latter resonance called high frequency dynamics is finally discussed and analyzed by a factorial analysis.
AB - In the field of vibration control, detection of absolute displacement signal is being required in order to implement a sky-hook spring. Then, two kinds of absolute displacement sensors have been already proposed without utilizing integrators to avoid a drift problem. At first, it is described how and why the sensors should be developed in this paper. Next, structures and characteristics of the proposed sensors are compared with each other to reveal their differ-ences. When the bandwidths are expanded in order to apply the sensors to industrial scenes, resonant peaks will be appeared in both low and high frequency regions. Whereas the former resonance can be suppressed by inner velocity feedback, the latter resonance called high frequency dynamics is finally discussed and analyzed by a factorial analysis.
UR - http://www.scopus.com/inward/record.url?scp=80052856738&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=80052856738&partnerID=8YFLogxK
U2 - 10.1109/PACCS.2011.5990155
DO - 10.1109/PACCS.2011.5990155
M3 - Conference contribution
AN - SCOPUS:80052856738
SN - 9781457708565
T3 - Proceedings - PACCS 2011: 2011 3rd Pacific-Asia Conference on Circuits, Communications and System
BT - Proceedings - PACCS 2011
T2 - 2011 3rd Pacific-Asia Conference on Circuits, Communications and System, PACCS 2011
Y2 - 17 July 2011 through 18 July 2011
ER -