Abstract: A differential pressure sensor for determining the differential pressure between two pressures includes a converter chamber including a differential pressure measuring cell, and a measuring unit including a main body and a coplanar double-membrane system with two double membranes, each including a separating membrane and an overload membrane with a pressure chamber between the separating membrane and the overload membrane and an additional pressure chamber between the overload membrane and the main body.

Abstract: A graphics data form includes an information processing system having a generator for generating graphics images, each image comprising a recognizable representation of at least one real-life object. The GDF also includes a selector for selecting an image by a user of the system; a receiver for receiving information from the user; an associator for associating the information received with the selected image; a real time processor for manipulating how the image is presented; and a real time processor for processing data associated with the selected image responsive to manipulation of the selected image.