Measurement of the translational and rotational Brownian motion of individual particles in a rarefied gas

被引：41

作者：

Blum, Juergen ^{[1
]}

Bruns, Stefan ^{[1
]}

Rademacher, Daniel ^{[1
]}

Voss, Annika ^{[1
]}

Willenberg, Bjoern ^{[1
]}

Krause, Maya ^{[1
]}

机构：

[1] Tech Univ Carolo Wilhelmina Braunschweig, Inst Geophys & Extraterrestr Phys, D-38114 Braunschweig, Germany

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 97卷 / 23期

关键词：

D O I：

10.1103/PhysRevLett.97.230601

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We measured the free Brownian motion of individual spherical and the Brownian rotation of individual nonspherical micrometer-sized particles in rarefied gas. Measurements were done with high spatial and temporal resolution under microgravity conditions in the Bremen drop tower so that the transition from diffusive to ballistic motion could be resolved. We find that the translational and rotational diffusion can be described by the relation given by Uhlenbeck and Ornstein [Phys. Rev. 36, 823 (1930)]. Measurements of rotational Brownian motion can be used for the determination of the moments of inertia of small particles.

引用

收藏

页数：4

相关论文

共 20 条

[1] The cosmic dust aggregation experiment CODAG [J].

Blum, J ;

Wurm, G ;

Poppe, T ;

Kempf, S ;

Fiethe, B ;

Giel, M ;

Offterdinger, P ;

Neuhaus, D ;

Rott, M ;

Giovane, F ;

Gustafson, B .

MEASUREMENT SCIENCE AND TECHNOLOGY, 1999, 10 (10) :836-844

[2] Structure and mechanical properties of high-porosity macroscopic agglomerates formed by random ballistic deposition -: art. no. 115503 [J].

Blum, J ;

Schräpler, R .

PHYSICAL REVIEW LETTERS, 2004, 93 (11) :115503-1

[3] The Brownian motion of dust particles in the solar nebula: An experimental approach to the problem of pre-planetary dust aggregation [J].

Blum, J ;

Wurm, G ;

Kempf, S ;

Henning, T .

ICARUS, 1996, 124 (02) :441-451

[4] Growth and form of planetary seedlings:: Results from a microgravity aggregation experiment [J].

Blum, J ;

Wurm, G ;

Kempf, S ;

Poppe, T ;

Klahr, H ;

Kozasa, T ;

Rott, M ;

Henning, T ;

Dorschner, J ;

Schräpler, R ;

Keller, HU ;

Markiewicz, WJ ;

Mann, I ;

Gustafson, BAS ;

Giovane, F ;

Neuhaus, D ;

Fechtig, H ;

Grün, E ;

Feuerbacher, B ;

Kochan, H ;

Ratke, L ;

El Goresy, A ;

Morfill, G ;

Weidenschilling, SJ ;

Schwehm, G ;

Metzler, K ;

Ip, WH .

PHYSICAL REVIEW LETTERS, 2000, 85 (12) :2426-2429

[5] ROTATIONAL DIFFUSION CONSTANT OF A CYLINDRICAL PARTICLE [J].

BROERSMA, S .

JOURNAL OF CHEMICAL PHYSICS, 1960, 32 (06) :1626-1631

[6]

Brown Robert., 1828, EDINBURGH NEW PHIL J, P358

[7] The motion of elements suspended in static liquids as claimed in the molecular kinetic theory of heat [J].

Einstein, A .

ANNALEN DER PHYSIK, 1905, 17 (08) :549-560

[8]

*EPAPS, EPRLTAO97030649

[9] On the resistance experienced by spheres in their motion through gases [J].

Epstein, PS .

PHYSICAL REVIEW, 1924, 23 (06) :710-733

[10] Rotational diffusion of colloid spheres in concentrated suspensions studied by deuteron NMR [J].

Kanetakis, J ;

Tolle, A ;

Sillescu, H .

PHYSICAL REVIEW E, 1997, 55 (03) :3006-3014