Title:
MAGNETIC RESONANCE MEASUREMENT DEVICE
Document Type and Number:
Japanese Patent JP2016024116
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To dynamically vary the amplitude of each pulse after synthesizing a plurality of transmission signals in a magnetic resonance measurement device such as an NMR measurement device.SOLUTION: A plurality of transmission signals 124, 130 are synthesized, and a digital composite signal 131 is thereby generated. The digital composite signal 131 is converted to an analog composite signal by a DA converter. This includes, for example, a rectangular first pulse 124A and a mountain-shaped second pulse 130A. An operation of a dynamically variable attenuator is switched immediately after the first pulse 124A during measurement execution. The second pulse 130A is thereby suppressed, and a suppressed second pulse 136 is generated.SELECTED DRAWING: Figure 5
Inventors:
HACHIYA KENICHI
IZUMI KENYA
TSUKADA TAKESHI
IZUMI KENYA
TSUKADA TAKESHI
Application Number:
JP2014149862A
Publication Date:
February 08, 2016
Filing Date:
July 23, 2014
Export Citation:
Assignee:
JEOL RESONANCE INC
International Classes:
G01R33/46; A61B5/055; G01R33/60
Domestic Patent References:
| JP2014119346A | 2014-06-30 | |||
| JP2007003458A | 2007-01-11 | |||
| JPH0838446A | 1996-02-13 | |||
| JPH06114031A | 1994-04-26 | |||
| JPH04292139A | 1992-10-16 | |||
| JPH01230348A | 1989-09-13 |
Foreign References:
| US20130154640A1 | 2013-06-20 |
Attorney, Agent or Firm:
Patent Corporation yki International Patent Office