Abstract: An electronic biosensor arrangement (1), comprising a receiving region (2) for biological material, a sensor-electrode arrangement (3) with sensor electrodes (3a, 3b) which intermesh in a comb-like manner being associated therewith, with which sensor electrodes (3a, 3b) a measuring circuit (5) is connectable for measuring an electrical measurement parameter on the sensor electrodes (3a, 3b) and influenced by biological material, wherein the sensor electrodes (3a, 3b) form a plurality of sensor capacitors (Csensor,1 to Csensor,N), with which electronic switching means (S2,1 to S2,N) driven by a control logic (8) are associated for connecting to earth or to a voltage source carrying a measurement voltage (Vdrive), respectively, comprising a reference capacitor (Cref), to which a switching means (S1) driven by the control logic (8) and arranged for optionally connecting to earth or to the measurement voltage (Vdrive) is likewise assigned, wherein the capacitors (Cref, Csensor1?Csensor, N) are also combined to a

Abstract: An electronic biosensor arrangement (1), comprising a receiving region (2) for biological material, a sensor-electrode arrangement (3) with sensor electrodes (3a, 3b) which intermesh in a comb-like manner being associated therewith, with which sensor electrodes (3a, 3b) a measuring circuit (5) is connectable for measuring an electrical measurement parameter on the sensor electrodes (3a, 3b) and influenced by biological material, wherein the sensor electrodes (3a, 3b) form a plurality of sensor capacitors (Csensor,1 to Csensor,N), with which electronic switching means (S2,1 to S2,N) driven by a control logic (8) are associated for connecting to earth or to a voltage source carrying a measurement voltage (Vdrive), respectively, comprising a reference capacitor (Cref), to which a switching means (S1) driven by the control logic (8) and arranged for optionally connecting to earth or to the measurement voltage (Vdrive) is likewise assigned, wherein the capacitors (Cref, Csensor1-Csensor, N) are also combined to a

Abstract: The invention relates to an apparatus for determining the shape and/or size of small particles, comprising a cell into which the particles are placed, at least one light source for illuminating the particles, and at least one one-dimensional image sensor for measuring an image of the illuminated particles. The cell is embodied as a conduit through which the particles can be transported, and the image sensor is placed in the immediate vicinity of the conduit or into the conduit.

Abstract: An apparatus for measuring a small quantity of a liquid, for example, in connection with a medical diagnostic test, comprising at last one chamber for receiving the liquid, which chamber comprises a bottom and upright side walls and at least two electrodes to connect to a voltage source and a measuring system for determining the electrical impedance between the electrodes. The electrodes are substantially incorporated in the bottom of the chamber, allowing the electrical impedance of the liquid itself to be determined.

Abstract: The invention relates to an apparatus for determining the shape and/or size of small particles, comprising a cell into which the particles are placed, at least one light source for illuminating the particles, and at least one one-dimensional image sensor for measuring an image of the illuminated particles. The cell is embodied as a conduit through which the particles can be transported, and the image sensor is placed in the immediate vicinity of the conduit or into the conduit.