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Título

Quality control of liquid pigment-based suspensions using ultrasounds

AutorSierra Sánchez, Carlos José ; Resa López, Pablo Ismael ; Elvira Segura, Luis
Palabras claveParticle size in suspensions
Ultrasonic measuring systems
Wave amplitude
Time of Flight (TOF)
Noninvasive control methods
Fecha de publicacióndic-2007
EditorSociedad Española de Acústica
CitaciónXIX Congreso Internacional de Acústica (ICA2007)
SerieICA2007
ULT-17-022
ResumenThe determination of particle size in suspensions is a relevant issue in many industrial applications, for which this size represent a quality parameter of primary importance. The use of particle size ultrasonic measuring systems is becoming widespread especially in those applications dealing with concentrate suspensions, where optic methods are less efficient. In this work, the analysis of amplitude and time of flight variations by means of pulse-echo a through-transmission techniques of different size and nature pigments and solvents is presented. Different frequencies and temperatures were used to detect variations of ultrasonic wave propagation characteristics in the suspensions. The preliminary results presented here show the viability of using the measurement of amplitude and time of flight to asses the quality of suspensions and therefore, to develop noninvasive and non-destructive methods to control the pigment production.
DescripciónPonencia presentada en el XIX Congreso Internacional de Acústica (ICA2007), Madrid, 2-7 Sep 2007.-- PACS: 43.35.Bf.
URIhttp://hdl.handle.net/10261/5340
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