A magnetostrictive instrument for measuring the viscoelastic properties of liquids in the frequency range 20-100 kHz
| Autor: | G Hall, A J Matheson, J L Stretton, G M Glover |
|---|---|
| Rok vydání: | 1968 |
| Předmět: |
Materials science
Acoustics Isotropy General Engineering General Physics and Astronomy Magnetostriction Piezoelectricity Viscoelasticity Condensed Matter::Soft Condensed Matter Physics::Fluid Dynamics Shear (sheet metal) Transducer General Materials Science Tube (fluid conveyance) Instrumentation Electrical impedance |
| Zdroj: | Journal of Physics E: Scientific Instruments. 1:383-388 |
| ISSN: | 0022-3735 |
| Popis: | An instrument is described which measures the mechanical shear impedance of liquids in the frequency range 20-100 kHz. It operates through the magnetostrictively induced motion of a thin walled tube. Compared with earlier devices using piezoelectric transducers it is more robust and versatile and the use of tubes allows the sensitivity to be increased by an order of magnitude. The necessary theory is given for the damped torsional motion of an infinitely long homogeneous isotropic tube immersed in a viscoelastic liquid. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|