Temperature-compensation factor for measuring of concentration in solution using ultrasonic light di .raction e .ect
説明
This paper describes the workings of a temperature-compensation factor V/sub cF/ for measuring concentration in solutions using an acousto-optic effect over a range of ultrasonic frequencies (f/sub a/) (9-30 MHz) on which Raman-Nath diffraction occurs. The value of V/sub cF/ calculated by the empirical equation of the sound velocity for NaCl solution within the concentration range of 0.0 1.0%, is 9.49 mV//spl deg/C for the temperature range of 25/spl deg/C/spl plusmn/2/spl deg/C. Its value is reasonably consistent with the experimental value 9.65 mV. A proportional coefficient PC/sub cf/ for NaCl solutions for V/sub cF/ over the temperature range of 20 to 30/spl deg/C and ultrasonic frequency range of 9 to 30 MHz is 0.318 mV//spl deg/C.MHz. We describe measured values of sound velocity using an acousto-optic effect. We obtained the ultrasonic velocity of S/sub N/=10.0. 20.0% which is the concentration of NaCl solutions v=1615.1, 1714.5 m/s at f/sub a/=29.398 MHz. For the concentration of sucrose solutions s/sub SA/=10.0, 20.0% v = 1538.6, 1572.8 m/s are obtained at f/sub a/ = 22.298 MHz.
収録刊行物
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- IEEE Ultrasonics Symposium, 2004
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IEEE Ultrasonics Symposium, 2004 3 1860-1863, 2005-04-19
IEEE