S-Space College of Education (사범대학) Center for Educational Research (교육종합연구원) 교육연구와 실천 Journal of the College of Education (師大論叢) vol.15/16 (1977)
Lissajous figure를 이용한 수중에서의 초음파 전파속도 측정
Measurement of the ultrasonic propagation velocity in water by the use of Lissajous figures
- Issue Date
- 서울대학교 사범대학
- 사대논총, Vol.15, pp. 119-127
- The propagation velocity of ultrasonics in water at various temperatures has been measured by using the Lissajous figures, The Lissajous figures were obtained by two different methods. One is to move the receiver while the temperature of the water kept constant. The other is to control the temperature of the water while the distance between the transducer and the receiver kept constant. The velocity of sound in water measured by the Lissajous figures obtained by the second method agreed well with the values obtained by M. Greenspan and C.E. Tschiegg J. of Res. Nat. Barau of Standards 59(1957) 249.