A new ultrasonic lens
There is an increasing need for good ultrasonic lenses in nondestructive testing, medical diagnostics and short range underwater applications. The difficulties encountered are material problems in nature; optical design techniques are well developed. A symmetrical doublet has been designed with an a...
Saved in:
| Published in | Ultrasonics Vol. 14; no. 6; pp. 268 - 272 |
|---|---|
| Main Authors | , |
| Format | Journal Article |
| Language | English |
| Published |
Elsevier B.V
01.01.1976
|
| Online Access | Get full text |
Cover
Loading…
| Summary: | There is an increasing need for good ultrasonic lenses in nondestructive testing, medical diagnostics and short range underwater applications. The difficulties encountered are material problems in nature; optical design techniques are well developed.
A symmetrical doublet has been designed with an aperture of F 1 and with aberrations much less than
λ
4
at 2 MHz. The calculated resolution is 4λ per line pair. Details of the construction and the first test results, which agree well with predictions, are reported. |
|---|---|
| ISSN: | 0041-624X 1874-9968 |
| DOI: | 10.1016/0041-624X(76)90034-2 |