Acoustic heating and thermometry in microfluidic channels

被引:0
作者
Jagannathan, H [1 ]
Yaralioglu, GG [1 ]
Ergun, AS [1 ]
Khuri-Yakub, BT [1 ]
机构
[1] Stanford Univ, Edward L Ginzton Lab, Stanford, CA 94305 USA
来源
MEMS-03: IEEE THE SIXTEENTH ANNUAL INTERNATIONAL CONFERENCE ON MICRO ELECTRO MECHANICAL SYSTEMS | 2003年
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中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This paper presents the results of the work performed in establishing closed loop temperature control of fluids in microfluidic channels. Acoustic energy is used to introduce heat into localized regions of the channel. The temperature of the fluid in these regions is determined by using the relationship between the attenuation and speed of sound propagating in the fluid with temperature. The above two operations of heating and temperature measurement when used in unison serve as a very powerful tool in microfluidics. The system requires milli-watts of power for heating and has a temperature measurement accuracy of 0.1 degrees.
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页码:474 / 477
页数:4
相关论文
共 6 条
[1]   SPEED OF SOUND IN PURE WATER [J].
DELGROSS.VA ;
MADER, CW .
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 1972, 52 (05) :1442-&
[2]  
HALLER MI, 1994, ULTRASON, P1241, DOI 10.1109/ULTSYM.1994.401810
[3]  
Jagannathan H, 2001, ULTRASON, P859, DOI 10.1109/ULTSYM.2001.991856
[4]   REACTIVE MAGNETRON SPUTTERING OF ZNO [J].
KHURIYAKUB, BT ;
SMITS, JG ;
BARBEE, T .
JOURNAL OF APPLIED PHYSICS, 1981, 52 (07) :4772-4774
[5]  
Liu C, 1999, J MICROELECTROMECH S, V8, P90
[6]   Water as a standard in the measurements of speed of sound in liquids [J].
Marczak, W .
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 1997, 102 (05) :2776-2779