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公开(公告)号：US20250060767A1
公开(公告)日：2025-02-20
申请号：US18722051
申请日：2022-12-02
Applicant: Endress+Hauser Flowtec AG
Inventor： Pascal Buchschacher , Alex Huber , Hanspeter Schmid , Werner Tanner
Abstract: The signal transmission system comprises a transmitter circuit, a receiver circuit and a signal cable. A current divider is formed by a terminating resistor between the signal conductors of the signal cable. The transmitter circuit drives a loop current. When the receiver circuit input voltage has a voltage level above a first switching voltage threshold value, the output voltage assumes a first voltage level. The output voltage maintains the first voltage level when the input voltage is below the first switching voltage threshold value but above a second switching voltage threshold value. The transmitter circuit is configured to modulate the loop current with at least two different non-zero magnitudes at successive times. The first magnitude is greater than a first switching current threshold value and the second magnitude is less than the first switching current threshold value and greater than a second switching current threshold value.
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Patent Agency Ranking
公开(公告)号：US20240053178A1
公开(公告)日：2024-02-15
申请号：US18258029
申请日：2021-11-26
Applicant: Endress+Hauser Flowtec AG
Inventor： Timo Schirmeier , Werner Tanner , Dieter Schweizer
CPC classification number: G01F1/3218 , G01F1/3287
Abstract: A vortex flow meter comprises a measuring tube; a bluff body arranged in the measuring tube; a sensor device, having a paddle, a sensor main body and a piezo element, and an electronic operating circuit. The electronic operating circuit has a measuring circuit comprising an operational amplifier and a capacitor. The first capacitor forms a feedback between the output and the measurement input, wherein the reference input can be supplied with a first reference voltage. The measurement circuit has a first switch, wherein the electronic operating circuit is designed to connect the piezo element via the first switch to the measurement input of the operational amplifier and to charge it with a first charging voltage by means of a second switch position. The electronic operating circuit derives an information relating to a state of the piezo element from a discharge process of the piezo element.
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公开(公告)号：US10175089B2
公开(公告)日：2019-01-08
申请号：US15022242
申请日：2014-08-12
Applicant: Endress + Hauser Flowtec AG
Inventor： Hanspeter Schmid , Werner Tanner , Dirk Sutterlin , Martin Koch
Abstract: A method for monitoring a measuring device of automation technology, wherein the measuring device has a capacitive sensor the sensor has at least one capacitor, and the at least one capacitor is applied for determining or monitoring a process variable. A loss resistance of the at least one capacitor is measured by determining the charge state of the at least one capacitor at a first point in time and at a subsequent, second point in time, and, based on a change of the charge state between the first point in time and the second point in time, information is won concerning disturbance of the ability of the measuring device to function.
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公开(公告)号：US20160231162A1
公开(公告)日：2016-08-11
申请号：US15022242
申请日：2014-08-12
Applicant: ENDRESS+HAUSER FLOWTEC AG
Inventor： Hanspeter Schmid , Werner Tanner , Dirk Sutterlin , Martin Koch
CPC classification number: G01F25/0007 , G01F1/3218 , G01F1/329 , G01R31/028 , G01R31/2829
Abstract: A method for monitoring a measuring device of automation technology, wherein the measuring device has a capacitive sensor the sensor has at least one capacitor, and the at least one capacitor is applied for determining or monitoring a process variable. A loss resistance of the at least one capacitor is measured by determining the charge state of the at least one capacitor at a first point in time and at a subsequent, second point in time, based on a change of the charge state between the first point in time and the second point in time, information is won concerning disturbance of the ability of the measuring device to function.
Abstract translation: 一种用于监测自动化技术的测量装置的方法，其中所述测量装置具有所述传感器具有至少一个电容器的电容传感器，并且所述至少一个电容器用于确定或监视过程变量。 至少一个电容器的损耗电阻是通过基于第一点之间的充电状态的变化来确定在第一时间点和随后的第二时间点的至少一个电容器的充电状态来测量的 在第二时间点上，关于测量装置功能的干扰的信息是获得的。
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公开(公告)号：US20250081359A1
公开(公告)日：2025-03-06
申请号：US18682565
申请日：2022-07-22
Applicant: Endress+Hauser Flowtec AG
Inventor： Robert Lalla , Werner Tanner , Martin Arnold
IPC: H05K3/46
Abstract: A transmitter housing of an automation field device is a single-chamber housing with an aperture. The field device comprises a printed circuit board arranged in the transmitter housing, the printed circuit board comprising: a first rigid and flat section and a second rigid and flat section; at least one flexible and bent section; wherein both rigid sections are connected to each other only via the at least one flexible, bent section, wherein the first rigid section is accessible from the aperture and forms a connecting region comprising at least one connecting element for connecting at least one cable, and wherein the first rigid section and the second rigid section are arranged relative to each other at a first angle of between 60° and 120°, in particular between 80° and 100°.
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6.发明授权公开(公告)号：US10944413B2
公开(公告)日：2021-03-09
申请号：US16644087
申请日：2018-08-16
Applicant: Endress+Hauser Flowtec AG
Inventor： Lukas Tanner , Daniel Kollmer , Werner Tanner , Marita Paetzold , Lüder Bosse
Abstract: Disclosed is a field device of automation technology, comprising: a housing having a wall; a data transmission means arranged on an outside of the housing wall; and an electronic operating circuit arranged in a housing chamber and is adapted to operate the data transmission means, wherein the data transmission means and the electronic operating circuit are connected via an electrical signal line having a plurality of electrical conductors, wherein a first electrical conductor is adapted to lead a data signal and wherein at least a second electrical conductor is adapted to shield the first electrical conductor, wherein the signal line has an isolation device adapted to isolate a first signal line section galvanically from a second signal line section, wherein the isolation device includes an electromagnetically transparent plate having a first lateral surface and a second lateral surface parallel to the first lateral surface.
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