Title:
FREQUENCY-CHARACTERISTICS MEASUREMENT METHOD AND POSITIONING CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/072011
Kind Code:
A1
Abstract:
A sinusoidal signal that is frequency-swept so as to have a frequency region in which each frequency has a different number of cycles and/or application duration is applied to a control system in a movement device that moves a movement target, time-series data for transmission characteristics obtained from said control system as a result of the application of the aforementioned sinusoidal signal is acquired, and said time-series data is subjected to spectral analysis. This allows the provision of a positioning control device and a frequency-characteristics measurement method that make it possible to optimize measuring precision while minimizing increases in the amount of time it takes to measure frequency characteristics.
Inventors:
ODAI MASAKI (JP)
MOMOI YASUYUKI (JP)
OGAWA HIRONORI (JP)
MOMOI YASUYUKI (JP)
OGAWA HIRONORI (JP)
Application Number:
PCT/JP2013/080896
Publication Date:
May 21, 2015
Filing Date:
November 15, 2013
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
G05D3/12
Foreign References:
| JP2009247088A | 2009-10-22 | |||
| JP2006195543A | 2006-07-27 | |||
| JP2006333594A | 2006-12-07 | |||
| JPH03217901A | 1991-09-25 | |||
| JPH09180355A | 1997-07-11 |
Attorney, Agent or Firm:
KASUGA Yuzuru (JP)
Kasuga 讓 (JP)
Kasuga 讓 (JP)
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