SERVODRIVE Russian patent published in 2005 - IPC

FIELD: nondestructive testing.

SUBSTANCE: servodrive comprises measuring unit that has piezoelectric converters, mechanism for moving the measuring unit with respect to the weld of a pipe, mechanical link between the measuring unit and mechanism for its moving, pickup of position of the weld with respect to the measuring unit. The measuring unit is mounted on the shaft connected with the mechanism for movement through supports and is the center and axis of rocking of the measuring unit. The moving mechanism is mounted on two plates. One of the plates is movable and connected with the measuring units via supports. The mechanical link is made of levers. One of the levers is rigidly connected with the shaft and other movable lever by means of tie. The bottom end of the movable lever is connected with the movable plate of the moving mechanism by means of one cantilever. The top end is connected with the unmovable plate of the moving mechanism through another cantilever for permitting rocking and moving along the axle mounted on the cantilever for permitting it to change its position with the use of adjusting screws.

EFFECT: enhanced precision.

2 dwg