Air-coupled ultrasonic NDE: Experiments in the frequency range 750 kHz-2 MHz

NDT and E International

Volumn 35, Issue 7, 2002, Pages 417-426

  Blomme, E ^a   Bulcaen, D ^a   Declercq, F ^a  

^a Katholieke Hogeschool Zuid West Vlaanderen   (Belgium)

Author keywords

Air coupled ultrasound; B scan; C scan; Imaging of defects; Non contact NDT E; Reflection technique; Through transmission

Indexed keywords

ACOUSTIC IMPEDANCE; METAL CASTING; NONDESTRUCTIVE EXAMINATION; PIEZOELECTRIC TRANSDUCERS; SPOT WELDING; ULTRASONIC IMAGING;

AIR-COUPLED ULTRASOUND;

ULTRASONIC TESTING;

EID: 0036343468     PISSN: 09638695     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0963-8695(02)00012-9     Document Type: Article

References (20)

1. Novel high frequency air transducers
2. A surface micromachined electrostatic ultrasonic air transducer
3. The design and characterization of air-coupled capacitance transducers
4. Capacitive and piezoelectric air-coupled transducers for resonant ultrasonic inspection
5. The measurement and numerical modelling of the diffraction field of a spherical ultrasonic transducer working in the air at the frequency 1.3 MHz
6. High transduction piezoelectric transducers and introduction of non-contact analysis
7. Development and application of ultrasonic dry-contact and air-contact C-scan systems for nondestructive evaluation of aerospace composites
8. Characterization of composite prepreg with gas-coupled ultrasonics
9. Advances in air coupled NDE for rapid scanning applications
10. Real-time ultrasonic techniques suitable for implementing non-contact NDT-systems employing piezoceramic composite transducers
11. NDE applications of air-coupled ultrasonic transducers
12. Through-thickness characterization of solids by wideband air-coupled ultrasound
13. Innovation in non-contact ultrasonic analysis: Applications for hidden objects detection
14. Non-contact ultrasonic characterization of ceramics and composites
15. Air-coupled ultrasonic measurement of adhesively bonded multi-layer structures
16. Non-contact ultrasonic characterization of green bodies
17. Absorption of ultrasonic waves in air at high frequencies (10-20 MHz)
18. The use of ultrasonics for gauging and proximity sensing in air
19. The use of broadband acoustic transducers and pulse-compression techniques for air-coupled ultrasonic imaging