FR2241224A6 - Ultrasonic apparatus for examination of cylindrical objects - rotates on hydrostatic bearing to prevent damage on starting - Google Patents

Ultrasonic apparatus for examination of cylindrical objects - rotates on hydrostatic bearing to prevent damage on starting

Info

Publication number
FR2241224A6
FR2241224A6 FR7329721A FR7329721A FR2241224A6 FR 2241224 A6 FR2241224 A6 FR 2241224A6 FR 7329721 A FR7329721 A FR 7329721A FR 7329721 A FR7329721 A FR 7329721A FR 2241224 A6 FR2241224 A6 FR 2241224A6
Authority
FR
France
Prior art keywords
sleeve
rotates
hydrostatic bearing
examination
starting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
FR7329721A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
British Steel Corp
Original Assignee
British Steel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by British Steel Corp filed Critical British Steel Corp
Priority to FR7329721A priority Critical patent/FR2241224A6/en
Application granted granted Critical
Publication of FR2241224A6 publication Critical patent/FR2241224A6/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/26—Arrangements for orientation or scanning by relative movement of the head and the sensor

Abstract

Ultrasonic inspection of tubes is carried out by rotating a sleeve assembly (13) around the outside of the pipe (37). There are four ultrasonic crystals (12) connected via slip-rings (24) and brushes (29) to the external circuitry. The sleeve rotates on a hydrostatic bearing. Water is lead to four flats (14) on the surface of an inner fixed sleeve (3) forming pressure pads to locate the sleeve. Water also flows to two annular channels to lubricate the locating collar (17) and into the space (10) between the crystals and the sample to couple the ultrasonic waves. A gear wheel (23) is driven by an external source at a rate high enough to fill the whole of the space (10) by centrifugal force.
FR7329721A 1973-08-14 1973-08-14 Ultrasonic apparatus for examination of cylindrical objects - rotates on hydrostatic bearing to prevent damage on starting Expired FR2241224A6 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7329721A FR2241224A6 (en) 1973-08-14 1973-08-14 Ultrasonic apparatus for examination of cylindrical objects - rotates on hydrostatic bearing to prevent damage on starting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7329721A FR2241224A6 (en) 1973-08-14 1973-08-14 Ultrasonic apparatus for examination of cylindrical objects - rotates on hydrostatic bearing to prevent damage on starting

Publications (1)

Publication Number Publication Date
FR2241224A6 true FR2241224A6 (en) 1975-03-14

Family

ID=9123996

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7329721A Expired FR2241224A6 (en) 1973-08-14 1973-08-14 Ultrasonic apparatus for examination of cylindrical objects - rotates on hydrostatic bearing to prevent damage on starting

Country Status (1)

Country Link
FR (1) FR2241224A6 (en)

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