Patents Assigned to Endreas & Hauser GmbH & Co. KG
  • Publication number: 20070055463
    Abstract: A field device electronics with a sensor unit for capacitive fill level measurements in a container, wherein the field device electronics is connected over appropriate signal paths with the sensor unit, wherein the field device electronics produces a voltage signal for driving the sensor unit and receives and evaluates a measurement current from the sensor unit. According to the invention, an analog/digital converter digitizing the analog measurement current, a microprocessor and a memory unit are present, wherein the microprocessor utilizes predetermined program routines to perform the production of the voltage signal and the evaluation of the measurement current and a compensation of interference parameters and a determination of the parameters of the sensor-container arrangement which are to be determined, with the associated programs being stored in the memory unit.
    Type: Application
    Filed: November 30, 2002
    Publication date: March 8, 2007
    Applicant: ENDREAS + HAUSER GMBH + CO. KG A CORPORATION OF GERMANY
    Inventors: Hans-Jörg Florenz, Clemens Heilig
  • Patent number: 7073379
    Abstract: An arrangement for fill level measurement is provided, with which accurate fill level measurement on a continuing basis is possible, including a container (3) containing a fill substance (1) whose fill level is to be measured, a fill level measuring device (5) arranged at the container (3) and operating according to the travel time principle, an apparatus (11, 13) for registering a filling and/or emptying of the container (3), an auxiliary unit (19), which by means of the filling and/or emptying registered by the apparatus (11, 13), determines an instantaneous change in fill level (VL) or an instantaneous change in material flow rate, and makes such available to the fill level measuring device (5) for determining the fill level (L) to be measured.
    Type: Grant
    Filed: June 2, 2004
    Date of Patent: July 11, 2006
    Assignee: Endreas & Hauser GmbH & Co. KG
    Inventors: Herbert Schroth, Rolf Deserno