Abstract
An acoustic resonant spectroscopy technique for measuring the acoustic impedance of micron-scale polymer films without knowing any values of ultrasonic velocity, thickness and density has been developed. The method, which is based on spectral analysis, observes the acoustic resonance between water, the film and a tungsten plate with high acoustic impedance. The acoustic impedances of poly(vinyl chloride), poly(vinyl alcohol) and nylon films are determined by the spectroscopy technique. Moreover, the values of ultrasonic velocity and density of the films are also determined from the resonance frequencies of the films.
| Original language | English |
|---|---|
| Pages (from-to) | 2349-2352 |
| Number of pages | 4 |
| Journal | Key Engineering Materials |
| Volume | 353-358 |
| Issue number | PART 4 |
| DOIs | |
| Publication status | Published - 2007 |
| Event | Asian Pacific Conference for Fracture and Strength (APCFS'06) - Sanya, Hainan Island, China Duration: 2006 Nov 22 → 2006 Nov 25 |
Keywords
- Acoustic impedance
- Acoustic resonant spectroscopy
- Density, Poly(vinyl chloride) film
- Nylon film
- Polyvinyl alcohol film
- Ultrasonic velocity