公开(公告)号：WO2009149945A2

公开(公告)日：2009-12-17

申请号：PCT/EP2009004234

申请日：2009-06-12

Applicant: ABB TECHNOLOGY AG ,  SCHRAG DANIEL ,  MARET YANNICK

Inventor： SCHRAG DANIEL ,  MARET YANNICK

IPC: G08C19/02 ,  G01D21/00 ,  G05B19/042

CPC classification number: G01D4/00 ,  G01D21/00 ,  G05B2219/34313 ,  H04L12/40045 ,  H04L2012/4026 ,  Y02B90/248 ,  Y04S20/52

Abstract: The invention relates to a telecommunication device having a power-supplying receiving device (4) and a transmitter device (1) supplied by the receiving device (4) via a current loop (3) for the output of at least one variable measurement value, wherein the measurement value is imprinted on the loop current, comprising a further device (2) supplied from the current loop (3), and a method for the operating voltage supply thereof. For this purpose the invention provides that the device (2) is equipped with control means (11, 12) for the adaptive operating voltage adjustment relative to the loop current as a function of the current power requirement, said control means reducing the operating voltage (Uw) up to a minimum operating voltage value upon increasing loop current in a reversed proportional manner to the loop current, and keeping the operating voltage (Uw) constant in case of a further increase of the loop current in a loop current independent manner.

Abstract translation: 本发明涉及一种远程计量设备与用餐接收装置（4），并通过一电流回路的接收装置（4）中的一个（3）供电的发射机装置（1），用于输出至少一个可变的测量值，其中，所述环路电流测量值是深刻的印象，还包括一个 从电流环路（3）装置（2）和方法，用于其操作的电源供电。 为了这个目的，它建议，所述设备（2）与控制装置（11，12）提供用于自适应的工作电压调整至环路电流作为当前功率需求的函数，倒下的操作电压（UW）增加的环路电流正比于环路电流为最小工作电压值的情况下和 保持与回路电流回路电流无关的常数的进一步增加的工作电压（U w）的。

公开(公告)号：DE102008057964A1

公开(公告)日：2010-05-27

申请号：DE102008057964

申请日：2008-11-19

Applicant: ABB TECHNOLOGY AG

Inventor： HENCKEN KAI ,  SCHWIDERSKI HANS W ,  GROTHEY HARALD ,  SCHRAG DANIEL

IPC: G01F1/58

Abstract: A method is disclosed for operating a flowmeter, such as an inductive flowmeter, in which a medium flows through a measuring tube, and an arrangement of electrodes are conductively connected to the medium. To determine a filling level in a simple and reliable manner, at least four electrodes are arranged in the measuring tube essentially in a half-circumferential region based on a cross section through the measuring tube. When at least one signal is fed in at one of the electrodes or at one of the electrode pairs, an electrical current is measured at an electrode or between an electrode pair. An electrical voltage is measured between at least one other electrode pair or with respect to a common connection to ground. When comparing measurements with two different electrode combinations, different voltage and current values are related to infer a diagnosis, such as a filling level in the tube, and/or an electrode coating, and/or an oblique installation, and/or a sedimentation at a bottom of the tube. The diagnosis can be used to correct a flow rate.

公开(公告)号：DE102009024853A1

公开(公告)日：2009-12-17

申请号：DE102009024853

申请日：2009-06-09

Applicant: ABB TECHNOLOGY AG

Inventor： SCHRAG DANIEL ,  MARET YANNICK

IPC: G08C19/02 ,  G08C17/02

公开(公告)号：DE102008060360A1

公开(公告)日：2010-06-10

申请号：DE102008060360

申请日：2008-12-03

Applicant: ABB TECHNOLOGY AG

Inventor： MARET YANNICK ,  SCHRAG DANIEL ,  BLOCH RICHARD ,  MUELLER HARALD

IPC: H02H3/18

Abstract: A protective circuit arrangement is disclosed for electrical equipment supplied, for example, from a conductor loop in surroundings subject to explosion hazards in process engineering installations. To suppress current flow from an energy store of the electrical equipment into the conductor loop, an exemplary cascadeable switchgear cell is disclosed, having a first transistor, which allows the loop current to pass, and a second transistor, which short-circuits a parasitic base-emitter diode of the first transistor.

公开(公告)号：DE102008060359A1

公开(公告)日：2010-06-10

申请号：DE102008060359

申请日：2008-12-03

Applicant: ABB TECHNOLOGY AG

Inventor： MARET YANNICK ,  SCHRAG DANIEL ,  BLOCH RICHARD ,  MUELLER HARALD U

IPC: H02H3/18

Abstract: The arrangement has energized power connectors (11, 21, 31) of switching cells (10, 20, 30) connected with a connecting terminal of a conductor loop. Other energized power connectors (12, 22, 32) of the switching cell are connected with another connecting terminal of the conductor loop by an electronic circuit of an electrical operating unit. Control terminals (13, 23, 33) are connected with the latter connecting terminal of the conductor loop, and an asymmetrical type transistor (17) provides forward amplification that is larger than the rearward amplification.