Influence of effective diameter and piezoelectric and dielectric properties on the performance of ultrasonic transducers
โ Scribed by N.D. Patel; P.S. Nicholson
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 571 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0041-624X
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๐ SIMILAR VOLUMES
## Abstract The complex piezoelectric constant (__d__ = __d__โฒ โ __id__โณ), elastic constant (__c__ = __c__โฒ + __ic__โณ), and dielectric constant (ฮต = ฮตโฒ โ __i__ฮตโณ) were measured at a frequency of 10 Hz over the temperature range from โ150 to 50ยฐC and for a range of hydration up to 0.26 g/g for decal
The interaction of water with wood, such as bamboo and cedar, is investigated by measuring their complex piezoelectric, dielectric, and elastic constants between -150 and 150O C at 10 Hz. Bamboo and cedar are found to have two hydration-dependent elastic loss peaks, one is observed at about -looo C
Department der Technischen Hochschule Munchen, G e m n y ## Synopsis Dielectric dispersion measurements with aqueous solutions of hemoglobin and myoglobin have been performed in the frequency range from 100 kcps to 15 Mcps. The influence of preparation, particle size, and solvent conditions was s