Mikrosensor zur Positionsmessung von Fluessigkeiten in Kapillaren

WO 200120271 A UPAB: 20010611 NOVELTY - The sensor includes several individually connected electrodes (3) mounted on a substrate (2). The electrodes are made up of sensor-active sub-electrodes (5) which are linked electrical connections (7). The sub-electrodes of each two electrodes lie opposite each other in spaced-apart pairs. The electrode pairs are repeated periodically across the length of the sensor. The liquid level is measured by detecting the conductivity limit of the capillary tube contents using quasi-digital measuring methods to determine the behavior of the impedance of the electrode pairs. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for an apparatus and a method using the sensor. USE - For automatic pipetting equipment, used in routine health checks. ADVANTAGE - Reliable and precise, while being cheap to manufacture