Title:
【発明の名称】粒状物質操作方法及び装置
Document Type and Number:
Japanese Patent JP2545427
Kind Code:
B2
Abstract:
PCT No. PCT/GB87/00363 Sec. 371 Date Jan. 27, 1988 Sec. 102(e) Date Jan. 27, 1988 PCT Filed May 27, 1987 PCT Pub. No. WO87/07178 PCT Pub. Date Dec. 3, 1987.An acoustic standing wave is established in a fluid medium with a varying energy density in its nodal planes. Particles in the fluid medium responsive to the acoustic energy accumulate at these nodal planes and by the action of the variations of energy density in conjunction with the fluid viscous forces and/or field forces acting in the direction of the nodal planes, the movement of the particles held at these planes can be controlled. The adverse effects of attenuation of the acoustic beams producing the standing wave are reduced in this system, because any streaming due to imbalance of the acoustic forces forming the standing wave does not act in the direction in which the movement of the particles can be controlled.
Inventors:
SHURAMU KOONERIUSU JOON
Application Number:
JP50313987A
Publication Date:
October 16, 1996
Filing Date:
May 27, 1987
Export Citation:
Assignee:
BURITEITSUSHU TEKUNOROJII GURUUPU LTD
International Classes:
B01D21/00; B01D43/00; B01J8/40; B01J19/10; G01N33/483; B03B1/00; G01N29/02; G01N29/28; G10K15/00; (IPC1-7): B01J19/10; B03B1/00; G01N29/02; G01N33/483
Domestic Patent References:
| JP61500278A |
Attorney, Agent or Firm:
Aoyama Ryo (1 person outside)