Automated constant voltage anemometer with in situ measurements of overheat and time constant of the hot wire

被引：12

作者：

Sarma, GR ^{[1
]}

Lankes, RW ^{[1
]}

机构：

[1] Tao Syst, Williamsburg, VA 23185 USA

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 1999年 / 70卷 / 05期

关键词：

D O I：

10.1063/1.1149790

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The operational features of an automated constant voltage anemometer (ACVA) designed for flight applications have been presented. Diagnostic voltage outputs are provided in ACVA, which will enable the calculation of in situ hot wire time constant and overheat for postprocessing of the turbulence data from the measured output voltage. TTL outputs provide identification of the output state. Using this automated system in a wind tunnel, time constant values obtained as a function of the hot wire Reynolds numbers and hot wire currents (overheats) are presented for 5 and 10 mm hot wires showing agreement with prior analysis and results (C) 1999 American Institute of Physics. [S0034-6748(99)05105-9].

引用

页码：2384 / 2386

页数：3

共 6 条

[1]

COMTEBELLOT G, 1998, HDB FLUID DYNAMICS, pCH34

[2]

Freymuth P., 1966, 6603 DLR FB

[3]

KUPPA S, 1993, ASME, V161, P67

[4] Transfer function analysis of the constant voltage anemometer [J].