Capacitive measuring method and apparatus for fill level detection and correspondingly equipped laboratory equipment

Abstract

The invention relates to apparatuses () for the capacitive determination of the fill level in the individual containers () of a group () of regularly disposed containers of the same dimensions, wherein the apparatus () comprises a transmitter electrode () and a receiver electrode () as well as a circuit for carrying out a capacitive measurement. The measuring circuit comprises a transmitting circuit () and a receiving circuit () and the apparatus () comprises a horizontal base plate () having a plurality of electrodes () which protrude in one direction in relation to a horizontal plane defined by the base plate () and which are uniformly mutually spaced apart such that a plurality of working zones of the same dimensions are formed. A plurality of connections () are provided through which some of the electrodes () are connectable to the transmitting circuit () and controllable by said circuit and some of the electrodes () are connectable to the receiving circuit () and can be read out by said circuit. In the area of each working zone in the horizontal plane at least respectively two electrodes () are opposite one another. By means of the connections () respectively one of these two electrodes () will be used as transmitter and the other of the two electrodes () will be used as receiver.