An Adaptive Response Compensation Technique for the Constant-Current Hot-Wire Anemometer - Open Journal of Fluid Dynamics

OJFD > Vol.3 No.2, June 2013

Open Journal of Fluid Dynamics

Volume 3, Issue 2 (June 2013)

ISSN Print: 2165-3852 ISSN Online: 2165-3860

Google-based Impact Factor: 0.63 Citations h5-index & Ranking

An Adaptive Response Compensation Technique for the Constant-Current Hot-Wire Anemometer ()

HTML XML

Download as PDF (Size: 1585KB) PP. 95-108

DOI: 10.4236/ojfd.2013.32013 5,212 Downloads 8,774 Views Citations

Author(s)

Soe Minn Khine, Tomoya Houra, Masato Tagawa

Affiliation(s)

Department of Mechanical Engineering, Nagoya Institute of Technology, Nagoya, Japan.

ABSTRACT

An adaptive response compensation technique has been proposed to compensate for the response lag of the constant-current hot-wire anemometer (CCA) by taking advantage of digital signal processing technology. First, we have developed a simple response compensation scheme based on a precise theoretical expression for the frequency response of the CCA (Kaifuku et al. 2010, 2011), and verified its effectiveness experimentally for hot-wires of 5 μm, 10 μm and 20 μm in diameter. Then, another novel technique based on a two-sensor probe technique—originally developed for the response compensation of fine-wire thermocouples (Tagawa and Ohta 1997; Tagawa et al. 1998)—has been proposed for estimating thermal time-constants of hot-wires to realize the in-situ response compensation of the CCA. To demonstrate the usefulness of the CCA, we have applied the response compensation schemes to multipoint velocity measure- ment of a turbulent wake flow formed behind a circular cylinder by using a CCA probe consisting of 16 hot-wires, which were driven simultaneously by a very simple constant-current circuit. As a result, the proposed response compensation techniques for the CCA work quite successfully and are capable of improving the response speed of the CCA to obtain reliable measurements comparable to those by the commercially-available constant-temperature hot-wire anemometer (CTA).

KEYWORDS

Flow Measurement; Hot-Wire Anemometer; Turbulent Flow; Constant-Current Hot-Wire Anemometer; Response Compensation; Frequency Response; Time-Constant; Multipoint Measurement; Digital Signal Processing

Share and Cite:

Khine, S. , Houra, T. and Tagawa, M. (2013) An Adaptive Response Compensation Technique for the Constant-Current Hot-Wire Anemometer. Open Journal of Fluid Dynamics, 3, 95-108. doi: 10.4236/ojfd.2013.32013.

Cited by

[1]	Anemometric Type Flow Transmitter Using Transistor as a Primary Sensor
	2020

[2]	Real Time PC-Based Flow Measurement Technique Using Optical Channel as a Signal Transmitting Media
	2020

[3]	Micromachined hot wire sensors for turbulence measurement applications
	2020

[4]	Développement d'une méthode de mesure des champs de vitesse et de température liquide en écoulement diphasique bouillant en conditions réacteurs ou …
	Thesis, 2018

[5]	An approach to improve the performance of a feedback control loop by discrete-time sensor response compensation
	2016

[6]	Dynamic compensation of temperature sensors using a continuum model
	2016

[7]	ESTUDO E MODELAGEM DE UM ANEM?METRO A FIO QUENTE OPERANDO EM TEMPERATURA CONSTANTE
	2015

[8]	313 微気象観測における風向・風速測定のための協調型流速温度センサの開発 (OS14 熱および物質輸送現象の基礎と応用)
	2014

[9]	THEORETICAL ANALYSES AND EXPERIMENTAL VALIDATION OF DYNAMIC RESPONSES OF FINE-WIRE SENSORS TO FLUCTUATING VELOCITY AND …
	2014

[10]	313 Development of a coordinated velocity and temperature sensor for flow-direction and flow-velocity measurement in micrometeorological investigation
	東海支部総会講演会講演論文集, 2014

[11]	微気象観測における風向・風速測定のための協調型流速温度センサの開発
	東海支部総会講演会講演論文集, 2014

[12]	THEORETICAL ANALYSES AND EXPERIMENTAL
	Probe, 2014

[13]	Analytical and numerical sensitivity analysis of constant temperature hot-wire anemometre
	2014

Journals Menu

Follow SCIRP

	+1 323-425-8868
	customer@scirp.org
	+86 18163351462(WhatsApp)
	1655362766

	Paper Publishing WeChat

Journals Menu

Home

About SCIRP

Service

Policies