Abstract: A pressure sensor device is described that has a diaphragm acted upon by a working medium, on a first side, and a sensor chip, which is disposed on a second side of the diaphragm that is remote from the working medium. There is formed in the sensor chip a measuring bridge having four sensor elements, which form two pairs disposed parallel, and the pairs are disposed at right angles to one another. The sensor elements are disposed such that they are closely spaced apart from one another in the edge region of the sensor chip that faces toward the central point of the diaphragm.

Abstract: 1-nonen-3-one is added to food, pharamaceutical, cosmetic and perfume compositions to flavor the products and so that they impart aroma. It is added particularly to dairy products and coffee extract for enhancing the aroma imparted by those compositions. The 1-nonen-3-one may be combined with other compounds which provide flavor and aroma, and the combined compounds are added to the compositions.