An apparatus (60) according to the present invention includes a voltage generator (1) for generating brief voltage pulses for the impression of voltage on electrodes (6, 15, 16, 24) included in the apparatus, and a measurement unit (50) which is coupled to the electrodes. These are designed to be secured...http://www.google.se/patents/US20060015147?utm_source=gb-gplus-sharePatent US20060015147 - Apparatus for controlling the generation of electric fields
