Abstract: A cardholder system for holding electronic cards used for transactions includes a cardholder having a fraud protection mechanism. The system allows access to a card or to information stored on the card only upon entry of data uniquely identifying the owner of the system and the card or cards contained cardholder. Upon receipt of this identifying data, a card may be removed from the cardholder. The cardholder may also be used for contactless payment transactions without removing the card from cardholder. Accordingly, the cardholder includes an RFID tag or transponder for communication to a BLINK terminal, and the data required for the contactless transaction are transferred from a card in the cardholder to the RFID tag or transponder upon acceptance of the identifying data.

Abstract: The flow meter works on the Coriolis principle and has a measuring tube and at least two energy converters. At least one of the energy converters is an oscillation exciter for oscillating the tube to generate a wave traveling along the tube and an oscillation detector. An evaluating circuit uses the speed of travel of waves in the direction of flow of fluid through the tube and in the direction opposite the direction of flow to determine the mass flow of fluid through the tube.

Abstract: The invention relates to a magnetically inductive flow meter which generates a combined signal made up of a coil generated alternating voltage and an alternating simulated voltage. An evaluating circuit processes the combined signal to determine a flow rate output value in a manner which minimizes the temperature and time drift influences on the components of the flow meter.

Abstract: A mass flow meter based on the Coriolis principle. The meter has two rectilinear measuring tubes juxtaposed in parallel and mechanically connected at adjacent ends thereof. An oscillation generator is connected to the tubes between the ends thereof for driving the tubes in opposite directions. A sensor connected to the tubes on opposite sides of the oscillation generator sense and signal relative oscillations of the tubes which is indicative of the flow through the tubes. The measuring tubes have different bending strengths in two perpendicular axial planes thereof to reduce the amplitudes of vibration in the plane normal to the plane of interest. Individual masses applied to the measuring tubes cause the natural frequency of at least the first mechanical harmonic of the measuring tubes to differ from the natural frequency of the mechanical fundamental counter-oscillation by a factor x which differs from a whole number by at least 0.1.