Title:
NMR測定方法および装置
Document Type and Number:
Japanese Patent JP4456009
Kind Code:
B2
Abstract:
In an NMR measurement method using an NMR apparatus which converts a received signal to digital data using an analog/digital converter and performs a spectral analysis, a folding and aliasing count is decided from a variation in a peak frequency and frequency discrimination is performed. More specifically, a Nyquist frequency is changed to cause a variation of the peak frequency. Since the Nyquist frequency is inversely proportional to an increment of an evolution time t 1 which is a feature of multi-dimensional NMR, the Nyquist frequency can be changed by changing the increment of the evolution time. Furthermore, the Nyquist frequency is changed in such a way that a ratio between different Nyquist frequencies is not a ratio between natural numbers n 1 and n 2 which are greater than 0 and smaller than or equal to the maximum folding and aliasing count.
More Like This:
Inventors:
Park Min Suk
Shuya Hagiwara
Shuta Habara
Shuya Hagiwara
Shuta Habara
Application Number:
JP2005007346A
Publication Date:
April 28, 2010
Filing Date:
January 14, 2005
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
G01R33/32; G01N24/08; G01R33/46
Domestic Patent References:
| JP7088103A | ||||
| JP5045434A | ||||
| JP63175755A | ||||
| JP63175754A | ||||
| JP2004325407A | ||||
| JP11242074A |
Foreign References:
| US6144873 | ||||
| WO2002086517A2 |
Attorney, Agent or Firm:
Polaire Patent Business Corporation
Katsuo Ogawa
Kyosuke Tanaka
Takashi Sasaki
Katsuo Ogawa
Kyosuke Tanaka
Takashi Sasaki