Measurement of Sound Speed Following the Fluid Temperature Using Acoustic Inspection Device

  • Jeon, E.S. (Div. of Mechanical and Automative Engineering, Kongju National University) ;
  • Kim, W.T. (Div. of Mechanical and Automative Engineering, Kongju National University) ;
  • Kim, I.S. (Wess Gloval Inc.) ;
  • Park, H. (Div. of Mechanical and Automative Engineering, Kongju National University)
  • 투고 : 2010.01.28
  • 심사 : 2010.06.10
  • 발행 : 2010.06.30

초록

In this paper, the fluid AID(acoustic inspection device) was developed to measure SOS(speed of sound) since fluids used in most of industrial fields have different properties and its equipment is highly expensive. From AID developed, it is intended to get potentially the capability to distinguish the kind of fluid using the measurement by the SOS at various fields. In order to measure the sound speed of specific fluids, the measurement system and ultrasonic sensors are composed. The fluid used in the experimental work are soybean oil, glycerin, diesel oil and the error of time difference due to the container wall is extracted for preliminary experiment. As results, the variations of sound speed according to the temperature change of target fluid were analyzed and the polynomial equations were proposed.

키워드

참고문헌

  1. Benedetto, G., Gavioso, R. M., Giuliano Albo, P. A., Lago, S., Madonna Ripa, D. and Spagnolo, R. (2003) Speed of Sound of Pure Water at Temperatures between 274 and 394 K and Pressures up to 90 MPa, Proceeding of the Fifteenth Symposium on Thermophysical Properties, pp. 1408-1414
  2. Dang, C., Lester, W. and Schmerr, Jr. (2002) Complete Modeling of an Ultrasonic NDE Measurement System - An Electroacoustic Measurement Method, Journal of the Korean Society for Nondestructive Testing, Vol. 21, No. 1, pp. 1-21
  3. Ji, H. M., (2001) Industrial Present Condition of Ultrasonic Oil Gauge (Japanese), Sin-inTechnopia, pp. 107-145
  4. Lin, J. F., Liao, T. T. and Chang, C. C. (2008), Measurement of the Concentration of Glucose by a Circular Polariscope with Electro-Optic Modulation, Advanced Nondestructive Evaluation (ANDE), Vol. 1, pp. 1285-1290
  5. Schutzmittel, H. V., (2001) Property Measurement Apparatus, Sonotec, pp. 21-47
  6. Tat, M. E. and Van Gerpen, J. H. (2003) Measurement of Biodiesel Speed of Sound and Its Impact on Injection Timing, NREL/SR-510-31462, pp. 289-297