Endress + Hauser Wetzer GmbH + Co. KG Patent applications |
Patent application number | Title | Published |
20140172349 | Method and Apparatus for Determining a Process Variable - A method and apparatus for determining a process variable, of a primary sensor, wherein by means of the primary sensor an analog measurement signal is produced, which analog measurement signal is converted into a digital signal representing the measured variable, wherein by means of at least one secondary sensor at least one reference signal is produced, and wherein as a function of the point in time, at which the reaching of a predetermined state of the process variable, especially the reaching of a value of the reference signal. | 06-19-2014 |
20130234872 | Delta-Sigma D/A Converter - A delta-sigma D/A converter, by which a digital valued, input signal is convertible into a binary, clock signal time discrete, output signal. By forming an average value of the output signal over a number of clock signal cycles, an analog value of the input signal can be displayed. The delta-sigma D/A converter is embodied in such a manner that, in use, it provides the output signal by serial arrangement of signal patterns of a set of signal patterns, wherein the signal patterns of the set are, in each case, binary, clock signal time discrete and extend over a signal pattern cycles total of a plurality of clock cycles. At least two signal patterns of the set have mutually different signal pattern average values, which are formed over the respective signal pattern cycles total, and all signal patterns of the set have, in each case, essentially the same number, especially exactly the same number, of edges. | 09-12-2013 |
20130152780 | Installation Assembly with Sealing Apparatus - A sealing apparatus for an installation assembly, which installation assembly serves for accommodating a measuring insert, wherein the sealing apparatus includes a piston, a bushing and at least one sealing element. The piston and the bushing serve to accommodate the measuring insert by a bore provided in the piston and in the bushing, wherein the piston is additionally connected interactively with the bushing in such a manner that a pressure transmitted by the piston to the bushing serves to deform the sealing element, which is preferably arranged on at least one end of the bushing, and thereby to achieve a sealing action, in order, in the case of introduced measuring insert, to seal the bore, especially liquid or gas tightly. | 06-20-2013 |
20130132591 | Method for the Operating of a Field Device - A method for the operating of a field device of process automation technology, wherein data is exchanged via a connection between the field device and an operating device, for operating the field device, wherein the connection is established via a communication interface on the field device and a communication interface on the operating device, and wherein the communication interface of the operating device is a hardware communication interface, which is emulated by software, as an Ethernet interface. | 05-23-2013 |
20130092265 | ROTARY PADDLE LIMIT SWITCH AND METHOD FOR OPERATING A ROTARY PADDLE LIMIT SWITCH - A rotary paddle limit switch for determining a limit level of a fill substance, comprising a housing, which serves for accommodating a motor and a drive shaft. The drive shaft serves for rotation of a rotary paddle secured on the drive shaft, wherein the rotary paddle limit switch has a viewing window for optically checking rotational movement of the rotary paddle and/or the drive shaft. | 04-18-2013 |
20130034987 | Connection Terminal Block - An apparatus for connecting a measuring transducer with a control/evaluation unit, wherein at least one clamping apparatus is placed on a molded part. The clamping apparatus serves for producing a connection between at least one connecting line of the measuring transducer and at least one connecting line of the control/evaluation unit, wherein a soldering tab is provided, which serves for producing a soldered connection between the connecting line of the measuring transducer and the clamping apparatus, and wherein the soldering tab is embodied at least partially in such a manner so as, and serves, to damp possibly occurring vibrations. | 02-07-2013 |
20120261004 | Installation Assembly - An installation assembly with an assembly housing for accommodating at least one rod-shaped measuring insert, wherein the assembly housing has tubular first and second housing parts wherein, for accommodating the measuring insert, a first safety chamber is provided in the first housing part and a second safety chamber in the second housing part; wherein the first housing part has a process connection and wherein the first housing part is connected with the second housing part on a side of the process connection facing away from the first housing part; and wherein a seal-off apparatus is provided, which, in the case of a measuring insert introduced into the assembly housing, serves to seal off the second safety chamber from the first safety chamber, especially in a pressure-tight and/or liquid-tight manner. | 10-18-2012 |
20120250725 | MEASURING INSERT FOR TEMPERATURE MEASUREMENT - A temperature measuring insert composed of ceramic or sintered materials of magnesium oxide or aluminum oxide accommodates, on its end facing the measured medium, temperature sensor elements, such as thermocouples and temperature measuring resistors, as a measuring tip, installable singly or with others in metal or ceramic protective tubes. The site of the measuring tip, a water adsorption behavior differing from the remaining measuring insert material is present, in order to protect the temperature sensor elements in the case of rapid process related temperature changes, in order to prevent, in the case of heating, effects due to superheated steam. A solution is provided by features including that the measuring insert has a jacketing comprising densified desiccant coatings, which have a gradient with a continuously or stepwise adapted water adsorptive behavior in the direction of the temperature sensor element, wherein, for example, a decreasing water adsorption is realized according to the invention by means of different fractions of modified and unmodified adsorbents as well as hydrophobic, super hydrophobic or hydrophobized ceramic parts. | 10-04-2012 |
20110317741 | Resistance Temperature Sensor - A resistance temperature sensor with a first temperature sensor element and a second temperature sensor element, wherein the first temperature sensor element comprises a first measuring path and the second temperature sensor element a second measuring path, wherein the first and the second measuring paths extend on a substrate, wherein the substrate has an anisotropic thermal expansion with at least two mutually differing expansion directions (a, c), and wherein a projection of the first measuring path on the expansion directions (a) differs from a projection of the second measuring path on the expansion directions (c). | 12-29-2011 |
20110222583 | 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 sensor element, which is connected to at least one connection line; and at least one conductor element, which is connected to the connection line. At least one formed part is provided; that at least one opening is provided in the formed part for introduction of the connection line; that at least one opening is provided in the formed part for introduction of the conductor element; and that there is provided in the formed part at least one chamber section, into which open the opening for introduction of the connection line and the opening for introduction of the conductor element. | 09-15-2011 |
20110169184 | METHOD FOR MANUFACTURING A MEASURING APPARATUS AND METHOD FOR CASTING IN A MOLD - Method for manufacturing a measuring apparatus for determining and/or monitoring at least one process variable. At least one sensor element is inserted into an at least partially pot-shaped mold, and the mold is at least partially filled with a casting material composed at least of a first component and a second component. The mold is filled with the casting material, at least partially, with at least the following steps at least one predeterminable amount of the first component of the casting material is charged into the mold; at least one predeterminable amount of the second component of the casting material is charged into the mold; and the mold is vibrated and/or caused to oscillate with a predeterminable frequency. Furthermore, a method for filling an at least partially pot-shaped mold is disclosed. | 07-14-2011 |
20100321955 | APPARATUS FOR TRANSFER OF ELECTRICAL ENERGY - An apparatus for transfer of electrical energy between a primary side and a secondary side. The apparatus includes: at least one voltage input on the primary side; at least one transformer, wherein the transformer has on the primary side at least a first winding area and a second winding area; and at least one voltage monitoring unit, wherein the voltage monitoring unit is embodied in such a manner, that it connects the voltage input with the first winding area or the second winding area as a function of a primary voltage present at the voltage input. | 12-23-2010 |
20100254465 | APPARATUS FOR TRANSMISSION OF ELECTRICAL ENERGY AND INFORMATION - An apparatus for transmission of electrical energy and data between a primary side and a secondary side. At least one transferring unit is provided between the primary side and the secondary side, that, on the secondary side, at least a first data channel is provided, which has at least one address, that, on the primary side, at least one frequency control unit is provided, which is embodied in such a manner that the frequency control unit sets the working frequency of the transferring unit corresponding to data to be transferred and/or corresponding to the addressing of at least the first data channel, that, on the secondary side, at least one load setting unit is provided, which is embodied in such a manner that the load setting unit sets the electrical load, which lies on the secondary side on the transferring unit, corresponding to data to be transferred and/or corresponding to the address at least of the first data channel. | 10-07-2010 |
20100208769 | Apparatus for determing and/or monitoring temperature - An apparatus for determining and/or monitoring temperature, having: at least one housing, which has at least one inner space; and at least one cable duct for inserting at least one cable into an inner space of the housing; wherein the cable duct has at least one cable entrance and one cable exit opening into an inner space of the housing. The cable duct and the inner space of the housing are embodied and matched to one another in such a manner that the cable to be inserted in the cable duct extends essentially tangentially into the inner space of the housing, and is guided essentially radially in the inner space of the housing. | 08-19-2010 |
20100169816 | Field Device with Means for Performing Diagnostic Methods - A field device is able to diagnose a broad spectrum of possible faults and/or states, and includes: structure for performing user defined, diagnostic methods; which has an input circuit, via which at least one input variable is fed to the structure; which has an evaluation unit, which serves for deriving, on the basis of at least one input variable selected by the user and at least one evaluating method selected by the user, at least one characterizing variable; which has a monitoring unit, which monitors the derived characterizing variables on the basis of monitoring criteria selected by the user; and which has an output unit, which, upon the meeting of a monitoring criterion, outputs a diagnosis associated with such monitoring criterion; and an interface, via which a user selects the input variables for each user defined diagnostic method, selects the evaluating methods to apply to the input variables, selects the monitoring criteria, and specifies the diagnosis. | 07-01-2010 |
20100150425 | METHOD FOR OPERATING AND/OR MONITORING A FIELD DEVICE, AND CORRESPONDING FIELD DEVICE - The invention relates to a method for servicing and/or monitoring a field device ( | 06-17-2010 |
20100138068 | APPARATUS FOR TRANSFER OF ELECTRICAL ENERGY AND INFORMATION - An apparatus for transfer of electrical energy and data between a primary side and a secondary side. At least one transferring unit is provided between the primary side and the secondary side, that, on the secondary side, at least a first data channel is provided, which has at least one address, that, on the primary side, at least one frequency control unit is provided, which is embodied in such a manner, that the frequency control unit sets the working frequency of the transferring unit in accordance with the data to be transferred and/or in accordance with the addressing at least of the first data channel, that, on the secondary side, at least one load tuning unit is provided, which is embodied in such a manner, that the load tuning unit sets the electrical load, which lies on the secondary side of the transferring unit, in accordance with the data to be transferred and/or in accordance with the address at least of the first data channel. | 06-03-2010 |
20100132457 | APPARATUS FOR DETERMING AND/OR MONITORING A MEASURED VARIABLE - An apparatus for determining and/or monitoring at least one measured variable. The apparatus includes: at least one measuring unit; and at least one securement unit for holding the measuring unit in contact with an object. The securement unit is embodied in such a manner, that the securement unit has at least two stable shape states, wherein, for transition between the at least two states, application of a mechanical force to the securement unit is required. | 06-03-2010 |
20100071463 | 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 a first housing unit, which has at least one connecting section for mechanical connection of the first housing unit with a connecting section of a second housing unit. The invention includes the feature that the connecting section of the first housing unit is embodied in such a manner, that, via the connecting section of the first housing unit, connection of the first housing unit with one of at least two, second housing units is producible, wherein the at least two, second housing units differ from one another at least in their connecting sections. | 03-25-2010 |
20090303090 | ISOLATION UNIT FOR A CONVENTIONAL 2-CONDUCTOR COMMUNICATION CONNECTION INCLUDING A SENSOR, A MEASUREMENT TRANSMITTER AND A CONTROL UNIT - For a conventional 2-conductor communication connection, which includes a sensor, a measurement transmitter and a control unit, an isolation unit is provided, which serves for transmission of digital signals, which are not transmitted by the measurement transmitter. Thus, in the case of a conventional 2-conductor communication connection, digital communication between the sensor and the control unit becomes possible. | 12-10-2009 |
20090216496 | Feeder for a Measuring Transducer for Use in Process Automation Technology - In a measurement transmitter feeding device for process automation technology, serving for energy, or power, supply of a measurement transmitter and for forwarding electrical current signals transmitted via a signal line between the measurement transmitter and a superordinated unit, additionally arranged in the measurement transmitter feeding device FD are a microcontroller μC connected via a modem to the signal line L and a signalizing means SM activated by the microcontroller μC. The signalizing means SM serves for signalizing additional information delivered from the measurement transmitter MT and transmitted to the microcontroller μC via the signal line L. | 08-27-2009 |
20080258956 | Apparatus for Analog/Digital Conversion of a Measurement Voltage - apparatus for the analog/digital conversion of a measurement voltage with an analog/digital converter, which has an integrating component with an operational amplifier, a resistor and a capacitor in a feedback loop, wherein a reference voltage is applied to the inverting input of the operational amplifier and wherein the measurement voltage is applied to the non-inverting input of the operational amplifier The capacitor is charged during a charging phase of time length (t | 10-23-2008 |