Thermal flow sensor for liquids and gases based on combinations of two principles

被引:150
作者
Ashauer, M [1 ]
Glosch, H [1 ]
Hedrich, F [1 ]
Hey, N [1 ]
Sandmaier, H [1 ]
Lang, W [1 ]
机构
[1] Hahn Schickard Gesellsch, Inst Micromachining & Informat Technol, D-78052 Villingen Schwenningen, Germany
关键词
anemometer; thermal flow sensor; thermal time-of-flight;
D O I
10.1016/S0924-4247(98)00248-9
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
A new type of a flow sensor is presented which is based on a thermal principle. The combination of two detecting methods results both in a considerable increase in measuring range (0.1 to 150 mm/s) and in a shorter reaction time of less than 2 ms. Furthermore, the sensor is relatively insensitive to pollution. Devices were manufactured and successfully tested for liquids and gases. (C) 1999 Elsevier Science S.A. All rights reserved.
引用
收藏
页码:7 / 13
页数:7
相关论文
共 8 条
[1]  
BALTES H, 1993, TRANSDUCERS, P736
[2]  
CHOI IH, 1986, IEEE T ELECT DEVICES, V33
[3]  
KLUMPP A, 1994, MICROSYSTEMS TECH P, P289
[4]  
KUHL K, 1991, SENSOR MATER, V2, P247
[5]  
LANG W, 1990, SENSOR ACTUAT A-PHYS, V21, P473
[6]  
SCHIEFERDECKER J, 1995, SENSOR ACTUAT A-PHYS, V46, P422
[7]   A LIQUID VELOCITY SENSOR-BASED ON THE HOT-WIRE PRINCIPLE [J].
VANDERWIEL, AJ ;
LINDER, C ;
DEROOIJ, NF ;
BEZINGE, A .
SENSORS AND ACTUATORS A-PHYSICAL, 1993, 37-8 :693-697
[8]   HIGH-SENSITIVITY RADIATION THERMOPHILES MADE OF BI-SB-TE FILMS [J].
VOLKLEIN, F ;
WIEGAND, A ;
BAIER, V .
SENSORS AND ACTUATORS A-PHYSICAL, 1991, 29 (02) :87-91