EP 0489060 B1 19941130 - SLIT RADIOGRAPHY APPARATUS.
Title (en)
SLIT RADIOGRAPHY APPARATUS.
Title (de)
RÖNTGENAUFNAHMEGERÄT MIT SCHLITZBLENDEN.
Title (fr)
APPAREIL DE RADIOGRAPHIE A FENTE.
Publication
Application
Priority
- EP 9001329 W 19900810
- NL 8902117 A 19890822
Abstract (en)
[origin: WO9103056A1] A slit radiography apparatus is provided with an absorption device (8) which operates in conjunction with a slit diaphragm (2). The absorption device comprises electrically controllable piezo-electric tongues (11, 46). A control device (10, 30) provides electrical control signals for the tongues. A damping device is present for each tongue to receive the respective control signals for the tongues. It comprises for each tongue an EMF measuring circuit (34) and provides during operation, an output signal which represents the counter-EMF generated by the relative tongues. The relative output signals are combined with the control signals for the tongue concerned and act to counteract any uncontrolled vibrations of the tongues.
IPC 1-7
IPC 8 full level
A61B 6/06 (2006.01); G21K 1/04 (2006.01); H05G 1/26 (2006.01)
CPC (source: EP)
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
WO 9103056 A1 19910307; DE 69014638 D1 19950112; DE 69014638 T2 19950504; EP 0489060 A1 19920610; EP 0489060 B1 19941130; IL 95401 A0 19910630; IL 95401 A 19941007; JP H04507362 A 19921224; NL 8902117 A 19910318
DOCDB simple family (application)
EP 9001329 W 19900810; DE 69014638 T 19900810; EP 90912526 A 19900810; IL 9540190 A 19900816; JP 51173190 A 19900810; NL 8902117 A 19890822