Transactions of the Korean Society of Machine Tool Engineers (한국공작기계학회논문집)

The Korean Society of Manufacturing Technology Engineers (한국생산제조학회)
권호 표지

Measurement of Liquid Density using Tuning Fork

튜닝포크를 이용한 액체밀도의 계측

  • 김충현 (한국과학기술연구원 트라이볼로지연구센터) ;
  • 이용복 (한국과학기술연구원 트라이볼로지연구센터) ;
  • 이성철 (인하공업전문대학교 기계시스템공학부 기계과)
  • Published : 2007.02.15
Download PDF
⟨ Previous Next ⟩

Abstract

A sensor using quartz toning fork is presented for measuring liquid density. It consists of a PZT plate as an actuator for piezoelectric excitation and a quartz tuning fork as a sensor for resonant frequency detection. The resonant frequency is determined from the sensing voltage measured in tuning fork when the excitation frequencies of PZT actuator are swept around the resonant frequencies of tuning fork. The resonant frequency determined the liquid density. The density values of three kinds of organic solvents are measured and compared with the standard values. The experimental results are in agreement with the standard values and the maximum standard deviation is less than 9%.

Keywords

References

  1. Guan, S., 2003, 'Frequency encoding of resonant mass sensors for chemical vapor detection,' Anal Chem, Vol. 75, pp. 4551-4557 https://doi.org/10.1021/ac034228r
  2. Kim, C. H. and Ahn, H. S., 2005, 'Frequency characteristics of micro-cantilever sensor using tuning fork,' Transaction of KSMTE, Vol. 14, No. 5, pp. 35-40
  3. Sorab, J., Allen, R. H. and Gonik, B., 1988, 'Tactile sensory monitoring of clinician-applied forces during delivery of newborns,' IEEE Trans. Biomed. Eng,. Vol. 35, No. 12, pp. 1090-1098 https://doi.org/10.1109/10.8695
  4. Ito, H. and Nakazawa, M., 1988, 'Analysis of pressure sensitivity of a tuning fork type quartz vacuum guage,' Trans. ICECE J. Series A, Vol. 71, pp. 1069-1075
  5. Shih, W. Y., Li, X., Gu, H., Shih, W. and Aksay, I. A., 2001, 'Simultaneous liquid viscosity and density determination with piezoelectric unimorph cantilevers,' J. Appl. Phys., Vol. 89, pp. 1497-1503 https://doi.org/10.1063/1.1287606
  6. Inaba, S., Akaishi, K., Mori, T. and Hane, K., 1993, 'Analysis of the resonance characteristics of a cantilever vibrated photothermally in a liquid,' Appl. Phys., Vol. 73, pp. 2654-2660 https://doi.org/10.1063/1.353060
  7. Bergaud, C. and Nicu, L., 2000, 'Viscosity measurements based on experimental investigations of composite cantilever beam eigenfrequencies in viscous media,' Rev. Sci. Instrum., Vol. 71, pp. 2487-2496 https://doi.org/10.1063/1.1150640
  8. O'Shea, S. J. and Welland, M. E., 1998, 'Atomic force microscopy at solid–liquid interface,' Langmuir, Vol. 14, pp. 4186-4192 https://doi.org/10.1021/la9801864