Response of a Sensor to Variations of a Web Offset Press.

We have previously presented [1] the main stages and the restrictions involved in transforming our laboratory prototype sensor into an industrial version. Our transducer which quantifies the wetting level and, therefore, the ink-water balance in the offset printing process, had been tested on a sheet-fed press. We will present herewith the main results obtained with an industrial web offset press directly on site in industry and in regular conditions of production. We studied, in particular, the response of the sensor according to wetting level, printing speed and inking level. In addition, we will indicate the most recent developments in the configuration of our sensor for use in industry. [1] TAGA Proceedings 1996