公开(公告)号：US10914791B2

公开(公告)日：2021-02-09

申请号：US16321925

申请日：2017-07-14

Applicant: Endress+Hauser Flowtec AG

Inventor： Thomas Böhler ,  Matthias Brudermann ,  Christoph Werle ,  Markus Wucher ,  Daniel Kollmer ,  Ludovic Adam

IPC: G01R31/04 ,  G01R31/70 ,  G01R31/28

Abstract: A test system for testing electrical connections, especially soldered connections, between electronic components and a circuit board to be tested, characterized in that the test system has a communication interface, which by contacting the circuit board enables a data exchange with a data memory or a communication module of the circuit board to be tested, wherein the communication interface is arranged within a housing of the test system freely movably in at least two spatial directions, preferably three spatial directions.

公开(公告)号：US10591513B2

公开(公告)日：2020-03-17

申请号：US15315034

申请日：2015-05-27

Applicant: Endress + Hauser Flowtec AG

Inventor： Adrian Brunner ,  Matthias Brudermann ,  Christoph Werle

IPC: G01R15/18 ,  H01H47/32 ,  H01H50/18 ,  H01H50/44

Abstract: A coil arrangement has an electrical coil and an armature movable between a first and second end positions, an electronic switch switchable between at least two switch states, a control and monitoring circuit for producing a switching signal actuating the electronic switch and an operating circuit for providing an operating voltage and an electrical current measurement signal representing an electrical current flowing as a function of time in a coil electrical current circuit formed with the coil. The control and monitoring circuit is adapted to detect whether an inductance of the coil has a dependence on the switching signal as a function of time. The electromechanical has a first switch contact movable between first and second switch positions, a second switch contact and a coil arrangement of the invention, while the measurement transmitter has also a measuring circuit for receiving at least one transducer signal.

公开(公告)号：US20150222241A1

公开(公告)日：2015-08-06

申请号：US14422305

申请日：2013-07-26

Applicant: Endress + Hauser Flowtec AG

Inventor： Matthias Brudermann ,  Daniel Kollmer ,  Christoph Werle

IPC: H03H7/00 ,  H04B5/00

CPC classification number: H03H7/004 ,  H04B5/0031 ,  H04L25/0266

Abstract: A circuit for signal transfer and galvanic isolation between first and second digital signal processing units, wherein a first signal path is provided between the first and second signal processing units. The first signal path has a first section, which includes positive and negative signal lines and serves for transfer of a differential signal between the first and second signal processing units. At least one capacitor is provided in the positive signal line and at least one capacitor in the negative signal line. The capacitors serve for galvanic isolation between the first signal processing unit and the second signal processing unit, and the capacitors are embodied, in each case, according to the specifications of the ignition protection type, intrinsic safety.

Abstract translation: 一种用于第一和第二数字信号处理单元之间的信号传输和电流隔离的电路，其中在第一和第二信号处理单元之间提供第一信号路径。 第一信号路径具有包括正和负信号线的第一部分，并且用于在第一和第二信号处理单元之间传送差分信号。 在正信号线中提供至少一个电容器和负信号线中的至少一个电容器。 这些电容器用于第一信号处理单元和第二信号处理单元之间的电隔离，并且在每种情况下，根据点火保护类型的规格，本质安全性实施电容器。