Patent · US Expired

System for inspecting tubes or pipes by means for ultrasonics

US4164150A · kind A · utility

13Cited by

5References

5Claims

0Family size

Assignee

Mannesmann AG · DE

Inventors

Karl Ries · Mülheim, DE
Kurt Hannoschock · Sonsbeck, DE
Gunter Simoneit

Key dates

Filing date	Jun 3, 1977
Grant date	Aug 14, 1979
Priority date	—
Expiry date	Jun 3, 1997

Classification

Technology area (CPC G)Physics
CPC primaryG01N2291/0422
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A plurality of water tanks hold a plurality of ultrasonic transducers, each providing a different angle of incidence for ultrasonic radiation for a tube or pipe passing through the tank. Water of a specific temperature is fed to the particular tank being used and in conjunction with a particularly oriented transducer, a particular test angle of refraction is established. Through a particular range of different transducer orientations in conjunction with a temperature range from about 5.degree. to 40.degree. C., a rather wide range of possible refraction angles can be established.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.