专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US10634571B2 Pressure-equalization element for a field device used in automation technology 有权
公开(公告)号：US10634571B2
公开(公告)日：2020-04-28
申请号：US15533133
申请日：2015-11-30
申请人： Endrses + Hauser GmbH + Co. KG
发明人： Ioan-Mircea Pol
IPC分类号： G01L19/06 , F16K24/00 , G01L13/00 , H05K5/02
CPC分类号： G01L19/0654 , F16K24/00 , G01L13/00 , H05K5/0213
摘要： A pressure-equalization element for equalization of pressure differences between at least two spatial areas assigned to a field device used in automation technology, comprising a main body, consisting of a securing element having an axial bore, that is used for securing the pressure-equalization element in a wall of the field device, and a disc-shaped carrier component having a lateral end surface. The disc-shaped carrier component is provided with a specified number (n, where n>2) of substantially radially-running recesses corresponding to the axial bore, wherein the radially-running recesses are offset from one another by a defined angular offset, and wherein the radially-running recesses are provided with a gas-permeable, liquid-barrier membrane in the region of the lateral end surface of the disc-shaped carrier components.

2. 发明授权

US10623009B2 Frequency generator with two voltage controlled oscillators 有权
公开(公告)号：US10623009B2
公开(公告)日：2020-04-14
申请号：US15132678
申请日：2016-04-19
申请人： Endress + Hauser GmbH + Co. KG
发明人： Winfried Mayer , Martin Hitzler , Christian Waldschmidt
IPC分类号： H03L7/23 , G01F23/284 , H03L7/099 , G01S7/35 , G01S13/34 , G01S13/88 , H03L7/197
CPC分类号： H03L7/23 , G01F23/284 , G01S7/35 , G01S13/345 , G01S13/88 , H03L7/099 , H03L7/1976 , H03L2207/06
摘要： A frequency generator includes two voltage controlled oscillators, which have a plurality of switchable sub-bands, each, and which are designed to produce respective frequency signals, wherein a switching from one sub-band to a neighboring sub-band occurs at predetermined switching locations. The sub-bands of the second oscillator are arranged offset in frequency relative to the sub-bands of the first oscillator. The frequency generator includes an electronic switch element, which is designed to switch either the first or the second frequency signal through to the output of the electronic switch element, and to switch the switch element such that during the producing of the frequency ramp alternately either the first or the second frequency signal is switched through to the output. When at one of the oscillators the switching between two neighboring sub-bands is occurring, the frequency signal produced by the other oscillator is switched through to the output.

3. 发明授权

US10557826B2 Vibronic sensor 有权
公开(公告)号：US10557826B2
公开(公告)日：2020-02-11
申请号：US15521625
申请日：2015-09-02
申请人： Endress + Hauser GmbH + Co. KG
发明人： Raphael Kuhnen , Ira Henkel , Peter Wimberger
IPC分类号： G01F23/296 , G01N11/16 , G01N29/22 , G01N29/46 , G01N29/07 , G01N9/00 , G01N29/02
摘要： An apparatus for determining and/or monitoring at least one process variable of a medium in a container, comprising at least an oscillatable unit having at least one membrane, and at least one oscillatory element, a driving/receiving unit embodied to excite the mechanically oscillatable unit by means of an electrical, exciter signal of adjustable excitation frequency to execute oscillations in an oscillation mode corresponding to the excitation frequency and to receive mechanical oscillations from the oscillatable unit and to convert such into an electrical received signal, and an electronics unit embodied, to produce the exciter signal, and to ascertain from the received signal the at least one process variable. The membrane is connected with the driving/receiving unit. The oscillatory element has the shape of an oscillatory rod, on which a paddle is terminally formed, and the oscillatory element is secured on the membrane in an end region remote from the paddle. Mass distribution, stiffness and/or geometry of the oscillatable unit is/are selected in such a manner that at least one of the oscillation modes of the oscillatable unit higher in reference to the oscillation mode corresponding to the excitation frequency lies in the range between two neighboring whole-numbered multiples of the excitation frequency.

4. 发明授权

US10422680B2 Method for monitoring at least one media-specific property of a medium 有权
公开(公告)号：US10422680B2
公开(公告)日：2019-09-24
申请号：US14889255
申请日：2014-04-22
申请人： Endress + Hauser GmbH + Co. KG
发明人： Armin Wernet , Gerd Bechtel , Kaj Uppenkamp , Franco Ferraro
IPC分类号： G01F23/26 , G01F23/24
摘要： A method and an apparatus for monitoring at least one media-specific property of a medium in automation technology with a measuring probe, wherein the at least one media-specific property is ascertained in a conductive operating mode and in a capacitive operating mode of the measuring probe. The conductive operating mode and the capacitive operating mode are operated alternately, wherein based on the measured values, which are ascertained in at least one of the two operating modes, it is checked, whether the at least one media-specific property to be monitored lies within a predetermined tolerance band, and wherein a report and/or a switching signal is generated, when the at least one media-specific property to be monitored lies outside of the predetermined tolerance band.

5. 发明授权

US10416021B2 Method for fill level measurement using the travel time principle 有权
公开(公告)号：US10416021B2
公开(公告)日：2019-09-17
申请号：US14782541
申请日：2014-02-17
申请人： Endress + Hauser GmbH + Co. KG
发明人： Stefan Gorenflo , Alexey Malinovskiy
IPC分类号： G01F25/00 , G01F23/284 , G01F23/296
摘要： A method for measuring a fill level of a fill substance in a container with a fill-level measuring device working according to the travel time principle. The fill-level measuring device in measurement operation sends transmission signals toward the fill substance in the container and, based on their signal fractions reflected back in the container, derives echo functions, which give the amplitudes of the signal fractions as a function of their travel time. With the assistance of a table, whose rows correspond to discrete fill levels and whose columns correspond to discrete travel times, and in which are stored as historical measurement points, in each case, in that row, whose row index corresponds to the associated fill level, information derived from echo functions derived in the past concerning travel times of echo function maxima attributed to reflections on reflectors located in the container, that also delivers reliable measurement results, when measuring conditions at the location of use of the fill-level measuring device can change, wherein the table is continuously updated based on current echo functions derived in ongoing measurement operation, wherein current measurement points derived from current echo functions are stored.

6. 发明授权

US10401215B2 Method and device for monitoring a process variable with vibronic sensor 有权
公开(公告)号：US10401215B2
公开(公告)日：2019-09-03
申请号：US14881370
申请日：2015-10-13
申请人： Endress + Hauser GmbH + Co. KG
发明人： Tobias Brengartner , Lukas Gersbacher
IPC分类号： G01H11/06 , G01F1/66 , G01F23/284 , G01F23/00 , G01F23/296 , G01N9/00 , G01F1/20
摘要： A method to determine and/or monitor at least one process variable of a medium with at least one vibration-capable unit. The vibration-capable unit is excited to mechanical vibrations by means of an electrical excitation signal of an adjustable frequency; wherein the mechanical vibrations are transduced into a received electrical signal, which is characterized at least by a frequency and/or a phase and/or an amplitude. The excitation signal is generated based on the received signal; wherein the voltage values of the received signal are sampled at specified predetermined points in time, starting from the excitation signal. The real part and the imaginary part of the received signal are determined from the sampled voltage values of the received signal by means of a Goertzel algorithm; wherein at least one Goertzel coefficient—in particular the number of the sample values and/or an operating frequency and/or a sample frequency—is provided for performing the Goertzel algorithm. At least the current phase and/or the current amplitude of the received signal are calculated from the real part and the imaginary part of the received signal; wherein the frequency of the excitation signal is adjusted such that a predeterminable phase shift is present between the excitation signal and the received signal; and wherein the at least one process variable is determined.

7. 发明授权

US10371556B2 Device for determining or monitoring the filling level of a filling material stored in a container 有权
公开(公告)号：US10371556B2
公开(公告)日：2019-08-06
申请号：US15116255
申请日：2015-01-16
申请人： Endress + Hauser GmbH + Co. KG
发明人： Klaus Feisst , Eric Bergmann
IPC分类号： G01S7/03 , G01F23/284 , G01S13/88
摘要： A device for determining or monitoring the filling level of a filling material stored in a container in a process, comprising a signal generating unit, a coupling/decoupling unit which couples the high-frequency measurement signals to an antenna unit or decouples said high-frequency measurement signals from the antenna unit. The antenna unit has a wave guide and an antenna element which widens in the direction of the filling material. The antenna unit emits high-frequency measurement signals in the direction of the surface and receives the echo signals reflected by the surface of the filling material. A control/evaluation unit determines the filling level of the filling material in the container from the transit time of the measurement signals. At least one process separation device is thereby provided in or on the antenna unit, which process separation device protects the coupling/decoupling unit from influences of the process, wherein a first process separation device is produced at least partially from a dielectric material with a specified porosity, and wherein the first process separation device is configured to be at least approximately transparent to the high-frequency measurement signals.

8. 发明授权

US10288508B2 Pressure sensor, especially pressure difference sensor 有权
公开(公告)号：US10288508B2
公开(公告)日：2019-05-14
申请号：US15341563
申请日：2016-11-02
申请人： ENDRESS+HAUSER GmbH + Co. KG
发明人： Timo Kober , Michael Philipps , Dieter Stolze , Anh Tuan Tham , Roland Werthschutzky
IPC分类号： G01L9/00 , G01L19/06 , C03B23/00
摘要： The pressure sensor of the invention includes at least one platform, at least one measuring membrane 30, and a transducer, wherein the measuring membrane comprises a semiconductor material, wherein the measuring membrane, enclosing a pressure chamber, is secured on the platform, wherein the measuring membrane is contactable with at least one pressure and is elastically deformable in a pressure-dependent manner, wherein the transducer provides an electrical signal dependent on deformation of the measuring membrane, wherein the platform has a membrane bed, on which the measuring membrane lies in the case of overload, in order to support the measuring membrane, wherein the membrane bed 21 has a glass layer 20, whose surface faces the measuring membrane and forms a wall of the pressure chamber, wherein the surface of the glass layer has a contour, which is suitable for supporting the measuring membrane 30 in the case of overload, characterized in that the contour of the membrane bed 21 is obtainable by a sagging of an unsupported region of a glass plate at increased temperature, due to the force of gravity on the unsupported region of the glass plate, and subsequent cooling of the glass plate.

9. 发明授权

US10267700B2 Capacitive pressure sensor and method for its production 有权
公开(公告)号：US10267700B2
公开(公告)日：2019-04-23
申请号：US15523457
申请日：2015-09-02
申请人： Endress + Hauser GmbH + Co. KG
发明人： Rafael Teipen , Benjamin Lemke , Timo Kober , Lars Karweck , Stefan Rummele-Werner , Thomas Zieringer
IPC分类号： G01L9/00 , G01L9/12 , G01L13/02 , G01L19/04 , G01L19/06
摘要： A high-precision pressure sensor, having a first base body that has two electrically conductive layers and an insulation layer arranged between the two layers and electrically insulating the two layers from one another, an electrically conductive measurement membrane arranged on the first base body with inclusion of a pressure chamber, which measurement membrane can be charged with a pressure to be measured, and an electrode provided in the membrane-facing layer and spaced apart from the measurement membrane, which electrode together with the measurement membrane forms a capacitor having a capacitance that varies according to the pressure acting upon the measurement membrane. The first base body is characterized in that it has a measurement membrane terminal via which a reference potential can be applied to the measurement membrane, an electrode terminal via which an electrode potential of the electrode can be tapped, and a shield terminal via which a shield potential that can be predetermined independently of the reference potential especially, a shield potential corresponding to the electrode potential can be applied to the layer facing away from the membrane.

10. 发明授权

US10247631B2 Differential pressure measuring cell 有权
公开(公告)号：US10247631B2
公开(公告)日：2019-04-02
申请号：US15323481
申请日：2015-06-08
申请人： Endress + Hauser GmbH + Co. KG
发明人： Ulfert Drewes , Michael Hugel , Nils Ponath , Andreas Rossberg , Elke Schmidt , Thomas Uehlin
IPC分类号： G01L13/02 , G01L15/00 , G01L19/06
摘要： A differential pressure measuring cell comprises a measuring membrane; two opposing bodies; and one converter. The measuring membrane is arranged between the opposing bodies and is connected in a pressure-tight manner to the two opposing bodies, forming in each case one measuring chamber. The opposing bodies each have a pressure duct through which a pressure can be made to act upon the respective measuring chamber. The converter is provided in order to convert a deformation of the measuring membrane, which deformation is dependent upon a difference between the pressures, into an electrical signal; wherein the opposing bodies each have a chamber section oriented toward the measuring membrane and a rear wall section oriented away from the measuring membrane with, between these, a decoupling chamber. The chamber sections each have an equalizing duct between the measuring chamber and the decoupling chamber, wherein the decoupling chamber has a diameter that is at least as large as the diameter of the measuring chamber.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式