Patent ID: 8049172
Filing Date: 2011-11-01
Classification: B41F,G01B

Abstract:
1. A method for radiometric measurement of thin fluid films where absorption of IR radiation is used, the method comprising: directing at least one IR radiator to send signals to a connected IR detector by means of the fluid film to be measured, wherein the method is used for a printing press, and the fluid film comprises fountain solution or an emulsion of fountain solution and printing ink, received on a printing plate; constantly monitoring the fluid film; and pulsating the signals; wherein one or more filters are placed at the IR detector to limit the received IR radiation to a band and wherein the signals from the IR radiator to the IR detector are sent in parallel; and wherein one or more points to be measured is established by positioning a sensor unit comprising at least one IR radiator and one IR detector in a predetermined position in axial direction of the printing plate and using an angle sensor to determine the rotational position on the printing plate.