Roller-type ultrasonic inspection device with acoustical isolation
US4519251A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 6, 1983 |
| Grant date | May 28, 1985 |
| Priority date | — |
| Expiry date | Sep 6, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N29/2493
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A roller-type ultrasonic probe comprises a support having two parallel limbs, and two coaxially aligned hubs each extending from a respective limb towards the other. An ultrasonic transmitter is mounted in one hub, a receiver is mounted in the other, and an acoustic screen is disposed between the adjacent ends of the hubs. Respective glycerine-filled rollers are mounted on each hub, and a common (or split) tire fits over both rollers. The respective axes of the transmitter and the receiver are preferably inclined at about 5.degree. and 7.degree. respectively towards the radially extending plane between the transmitter and receiver. The arrangement is particularly compact, and facilitates high-resolution ultrasonic investigation of bond quality in glass or carbon-fibre reinforced plastic sheets and other laminates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.