| Patent application number | Description | Published |
|---|
| 20080297177 | Method for servicing an apparatus for capacitive ascertaining and/or monitoring of a process variable - The invention relates to a method for servicing, especially checking, an apparatus for capacitive ascertaining and/or monitoring at least one process variable of a medium, wherein the apparatus has at least one probe unit ( | 12-04-2008 |
| 20090211356 | Apparatus for Capacitive Ascertaining and/or Monitoring of Fill Level - An apparatus for capacitive ascertaining and/or monitoring of the fill level of a medium in a container. The apparatus includes at least one probe unit, which is electrically insulated relative to the medium, and at least one electronics unit, which supplies the probe unit with at least one electrical, actuating signal, receives an electrical measurement signal from the probe unit, and evaluates the measurement signal as regards the fill level The actuating signal is an electrical alternating voltage signal. The electronics unit is embodied in such a manner that it supplies the probe unit with the actuating signal in a measuring phase, and supplies the probe unit with a test signal in a test phase, and that it receives a test measurement signal in the test phase from the probe unit, wherein the test signal is selected in such a manner that it has at least one section with an essentially constant voltage value. | 08-27-2009 |
| 20090284269 | Apparatus for ascertaining and/or monitoring a process variable - The invention relates to an apparatus for ascertaining and/or monitoring a process variable. The apparatus includes a sensor element ( | 11-19-2009 |
| 20100005880 | Apparatus for determining and/or monitoring a process variable - An apparatus for determining and/or monitoring a process variable of a medium in a container. including: a probe unit, which has a sensor electrode and a guard electrode; and an electronics unit, which supplies the sensor electrode with an activating signal and which supplies the guard electrode with a guard signal; An amplifying unit; and a limiting element arranged in series between the guard electrode and the output of the amplifying unit. The amplifying unit supplies via the limiting element the guard electrode with the guard signal; and the amplifying unit supplies via the limiting element the sensor electrode with the activating signal. The evaluating unit is provided, which determines and/or monitors the process variable based on an electrical current signal measurable at the sensor electrode, and the activating signal and/or the guard signal. | 01-14-2010 |
| 20100109649 | APPARATUS FOR DETERMINING AND/OR MONITORING A PROCESS VARIABLE - An apparatus for determining and/or monitoring at least one process variable. The apparatus includes: at least one energy input, via which the apparatus receives energy for operation of the apparatus. The invention includes features that: at least one measuring unit is provided, which measures energy applied to the energy input; and at least one control unit is provided, which, based on comparison of the measured energy with a desired value of the energy requirement, controls at least one unit of the apparatus. | 05-06-2010 |
| 20100132454 | APPARATUS FOR DETERMINING AND/OR MONITORING AT LEAST ONE PROCESS VARIABLE - An apparatus for determining and/or monitoring at least one process variable. The apparatus includes at least one, first electronics unit, at least one, second electronics unit, and at least one transferring unit. The transferring unit is arranged between the first electronics unit and the second electronics unit, and the transferring unit is embodied in such a manner, that it transmits electrical energy and data between the first electronics unit and the second electronics unit. | 06-03-2010 |
| 20100141285 | APPARATUS FOR DETERMINING AND/OR MONITORING A PROCESS VARIABLE - The invention relates to an apparatus for determining and/or monitoring at least one process variable of a medium ( | 06-10-2010 |
| 20100194383 | APPARATUS FOR DETERMINING AND/OR MONITORING A PROCESS VARIABLE - An apparatus for determining and/or monitoring at least one process variable of a medium. The apparatus includes: at least one probe unit; and at least one electronics unit, which supplies the probe unit with an operating signal and which receives from the probe unit a received signal. The probe unit includes at least one probe electrode and at least one guard electrode; and the probe electrode and the guard electrode are surrounded, at least partially, by at least one insulating unit. The the insulating unit has, in the region of the guard electrode, a smaller thickness than in the region of the probe electrode. | 08-05-2010 |
| 20110035576 | Configurable field device for use in process automation systems - A configurable field device for automation technology with a partially dynamically reconfigurable logic chip FPGA, in which function modules are dynamically configured during runtime, and to a method for operating the configurable field device. | 02-10-2011 |
