Title:
METHOD AND APPARATUS FOR MEASURING CHARACTERISTIC OF OBJECT WITH ACOUSTICALLY INDUCED ELECTROMAGNETIC WAVE
Document Type and Number:
WIPO Patent Application WO/2007/055057
Kind Code:
A1
Abstract:
A method and apparatus for measuring a change in the characteristic value or the
like of charged particles in an object from an electromagnetic wave induced by
irradiating an object (23) to be measured with an acoustic wave. The portion (2)
of the object to be measured which is irradiated with an acoustic wave focus beam
(1) is in a charge distributed state in which many positive charged particles
(3) are present, and thus the electromagnetic waves induced by the positive charged
particles (3) and negative charged particles (4) do not completely negate each
other to produce an actual electromagnetic wave (6). When the concentration
of the positive charged particles (3) and/or the negative charged particles
(4) changes, the strength of the electromagnetic wave (6) changes, thus allowing
to detect the concentration change in the charged particles from the strength
change in the wave (6).
Inventors:
IKUSHIMA KENJI (JP)
KOMIYAMA SUSUMU (JP)
KOMIYAMA SUSUMU (JP)
Application Number:
PCT/JP2006/316028
Publication Date:
May 18, 2007
Filing Date:
August 14, 2006
Export Citation:
Assignee:
JAPAN SCIENCE & TECH AGENCY (JP)
IKUSHIMA KENJI (JP)
KOMIYAMA SUSUMU (JP)
IKUSHIMA KENJI (JP)
KOMIYAMA SUSUMU (JP)
International Classes:
A61B10/00; A61B5/05; G01N22/00; G01N27/72; G01R33/035
Foreign References:
| JPH01307681A | 1989-12-12 | |||
| JPS63311185A | 1988-12-19 | |||
| JPH08193982A | 1996-07-30 |
Other References:
See also references of EP 1952763A4
None
None
Attorney, Agent or Firm:
HIRAYAMA, Kazuyuki (Shinjukugyoen Bldg., 2-3-10, Shinjuku, Shinjuku-ku Tokyo 22, JP)
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