Electric spark discharge as an ultrasonic generator in flow measurement situations

被引：10

作者：

Martinson, Emil ^{[1
]}

Delsing, Jerker ^{[1
]}

机构：

[1] Lulea Univ Technol, Dept Comp Sci & Elect Engn, EISLAB, SE-97187 Umea, Sweden

来源：

FLOW MEASUREMENT AND INSTRUMENTATION | 2010年 / 21卷 / 03期

关键词：

Ultrasound flow meter; Robust transducer; Extreme environments; Gap discharge; DESIGN; WAVES;

D O I：

10.1016/j.flowmeasinst.2010.04.011

中图分类号：

TH [机械、仪表工业];

学科分类号：

120111 [工业工程];

摘要：

In this paper, a gap discharge approach to create acoustic signals for ultrasonic low pressure gas flow measurements is investigated. The objective is to develop an ultrasonic gas flow meter system that is capable of operation in extreme industrial environments. These environments might have extremely high temperatures (1200 degrees C), moisture, steam, dust, low gas pressure and large transmission distances. Most other types of ultrasonic transducers found show sensitivity to such conditions: their operation suffers, or they may even stop functioning if exposed to such environments. The development of new transducer technology is therefore crucial to allow ultrasonic flow measurements in extreme industrial environments. In this paper, the gap discharge emitter is evaluated as a candidate to be used in these applications. Its capabilities as a sound source are investigated, and its impact on flow meter performance is estimated. It can be concluded that, despite the uncertainties it introduces to a flow meter system, it stands out as a strong candidate to be used as an acoustic emitter in a gas flow meter system for extreme environments. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：394 / 401

页数：8

共 21 条

[1]

BECK M, 1998, SAE SPECIAL PUBLICAT, V1352, P95

[2]

DESIGN AND CHARACTERIZATION OF A SHOCK-WAVE GENERATOR USING CANALIZED ELECTRICAL-DISCHARGE - APPLICATION TO LITHOTRIPSY [J].

BOURLION, M ;

DANCER, P ;

LACOSTE, F ;

MESTAS, JL ;

CATHIGNOL, D .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1994, 65 (07) :2356-2363

[3]

Coleman H.W., 1999, Experimentation and Uncertainty Analysis for Engineers

[4]

HIGH-VOLTAGE SPARK DISCHARGE SOURCE AS AN ULTRASONIC GENERATOR [J].

COOPER, JA ;

DEWHURST, RJ ;

MOODY, S ;

PALMER, SB .

IEE PROCEEDINGS-A-SCIENCE MEASUREMENT AND TECHNOLOGY, 1984, 131 (04) :275-281

[5]

SHOCK WAVES FROM SPARK DISCHARGES [J].

FREEMAN, RA ;

CRAGGS, JD .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1969, 2 (03) :421-+

[6]

HAMIDULLIN VKV, 2007, P IEEE IEEE ULTR S, P917, DOI DOI 10.1109/ULTSYM.2007.234

[7]

ULTRASONIC SPECTRUM SIGNATURES OF UNDER-OIL CORONA SOURCES [J].

HARROLD, RT .

IEEE TRANSACTIONS ON ELECTRICAL INSULATION, 1975, 10 (04) :109-112

[8]

JEN CK, 1996, P ULTR S, V1, P771, DOI DOI 10.1109/ULTSYM.1996.584086

[9]

KLEPPE JA, 1996, SENSORS, V12

[10]

Extended insulation layer structure for CMUTs [J].

Kupnik, Mario ;

Ergun, Arif S. ;

Huang, Yongli ;

Khuri-Yakub, Butrus T. .

2007 IEEE ULTRASONICS SYMPOSIUM PROCEEDINGS, VOLS 1-6, 2007, :511-+

← 1 2 3 →