UNE 20-561-1990
Electro-optical X-ray images strengthen their distortion determination

Standard No.

UNE 20-561-1990

Release Date

1990

Published By

ES-AENOR

Scope

This standard specifies a laboratory method for determining and reporting IMAGE DISTORTION as an operating characteristic that is determined on the OUTPUT DISPLAY by measuring a TEST DEVICE placed in front of the INPUT PLANE.