论文信息 - Acoustic transfer function of the clamp-on flowmeter

Acoustic transfer function of the clamp-on flowmeter

An angular spectrum approach is used to derive the acoustic transfer function of the clamp-on flowmeter. The flowmeter factor is calculated as a function of the position of the transducers by numerical evaluation of the transmission function. This method enables high measurement accuracy even in the case of the practically unavoidable mispositioning of the transducers. Simulations and measurement results show the influence of the transducer aperture and the pipe wall on the flowmeter factor.

A. Mitzkus | B. Funck

[1] Abdullah Atalar,et al. An angular‐spectrum approach to contrast in reflection acoustic microscopy , 1978 .

[2] Kim C. Benjamin,et al. Forward and backward projection of acoustic fields using FFT methods , 1981 .

[3] Daniel Guyomar,et al. Boundary effects on transient radiation fields from vibrating surfaces , 1985 .

[4] A. Schoch. Schallreflexion, Schallbrechung und Schallbeugung , 1950 .

[5] J. Goodman. Introduction to Fourier optics , 1969 .

[6] Y. Tsukahara,et al. Angular spectral approach to reflection of focused beams with oblique incidence in spherical-planar-pair lenses , 1991, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control.

[7] T. Sato,et al. Widebeam ultrasonic flowmeter , 1990, IEEE Symposium on Ultrasonics.

[8] A. Lutsch,et al. Elastic Wave Mode Conversion at a Solid‐Solid Boundary with Transverse Slip , 1961 .

[9] F. N. Frenkiel,et al. Waves In Layered Media , 1960 .

[10] J. Foulkes. Computer Identification of Vowel Types , 1961 .