公开(公告)号：EP2041531A1

公开(公告)日：2009-04-01

申请号：EP07725689.9

申请日：2007-05-31

申请人： SARTORIUS AG

发明人： MÜLLER, Michael ,  SCHULZE, Werner

IPC分类号： G01G3/14

CPC分类号： G01G3/1414 ,  G01G23/3728 ,  G01G23/3735

摘要： For top-pan scales with a scale pan which is supported on at least one force transducer (7) of a force measurement system (5) and with a corner load sensor which outputs a signal if the weighing goods are positioned in an eccentric manner on the scale pan, the invention proposes that the corner load sensor (10) has a flat underside by which it can be placed on or attached to the scale pan or a bottom pan of the scales, that the corner load sensor has a flat upper side onto which a scale pan (4) can be placed or attached, and that the corner load sensor (10) is connected to a positionally fixed correction electronics (22) via a force-feedback-free connection (21). The corner load sensor can therefore be used for any desired scales designs and can be retrofitted easily.

公开(公告)号：EP1470396B1

公开(公告)日：2006-03-29

申请号：EP03729460.0

申请日：2003-01-15

申请人： SARTORIUS AG

发明人： SCHULZE, Werner ,  KUHLMANN, Otto

IPC分类号： G01G3/14 ,  G01L1/22

CPC分类号： G01L1/2243 ,  G01G3/1412 ,  G01G3/1414

摘要： The invention relates to a force sensor with two force input elements (3,5/6), to which the force for measuring and the support force (11) are supplied, whereby both force input elements are embodied to be essentially rotationally symmetrical, separated in the axial direction and the force for measuring and the support force are introduced in the radial direction. A spring element (2), arranged in the axial direction between the both force input elements, connects the same and the load-dependent deformation thereof is converted into an electrical signal, for example, by means of strain measurement strips (25). According to the invention, a suppression of transverse forces can be achieved in a purely mechanical manner to such a degree that the influence of transverse forces on the output signal of the force sensor can be ignored, whereby the both force input elements (3,5/6) are additionally connected to each other by means of a guide element (42) which encloses the spring element (2) and which comprises two connectors (44) as parallel guide, significantly softer in the direction of the force (11) to be measured than in the direction perpendicular thereto.

公开(公告)号：EP1470396A1

公开(公告)日：2004-10-27

申请号：EP03729460.0

申请日：2003-01-15

申请人： SARTORIUS AG

发明人： SCHULZE, Werner ,  KUHLMANN, Otto

IPC分类号： G01G3/14 ,  G01L1/22

CPC分类号： G01L1/2243 ,  G01G3/1412 ,  G01G3/1414

摘要： The invention relates to a force sensor with two force input elements (3,5/6), to which the force for measuring and the support force (11) are supplied, whereby both force input elements are embodied to be essentially rotationally symmetrical, separated in the axial direction and the force for measuring and the support force are introduced in the radial direction. A spring element (2), arranged in the axial direction between the both force input elements, connects the same and the load-dependent deformation thereof is converted into an electrical signal, for example, by means of strain measurement strips (25). According to the invention, a suppression of transverse forces can be achieved in a purely mechanical manner to such a degree that the influence of transverse forces on the output signal of the force sensor can be ignored, whereby the both force input elements (3,5/6) are additionally connected to each other by means of a guide element (42) which encloses the spring element (2) and which comprises two connectors (44) as parallel guide, significantly softer in the direction of the force (11) to be measured than in the direction perpendicular thereto.

公开(公告)号：EP1470398A1

公开(公告)日：2004-10-27

申请号：EP03704401.3

申请日：2003-01-15

申请人： SARTORIUS AG

发明人： SCHULZE, Werner ,  WALD, Michael

IPC分类号： G01G23/00 ,  G01G19/414

CPC分类号： G01G19/4142 ,  G01G23/005

摘要： The invention relates to a force sensor with two force input elements (1, 6/7), to which the force for measuring and the support force (11) are supplied, whereby both force input elements are embodied to be essentially rotationally symmetrical, separated in the axial direction and the force for measuring and the support force are introduced in the radial direction. A spring element (5), arranged in the axial direction between the both force input elements, connects the same and the load-dependent deformation thereof is converted into an electrical signal, for example, by means of strain measurement strips and an essentially tubular cover connected to one of the both force input elements surrounds the spring element. According to the invention, the force sensor comprises an integrated overload protection, whereby the cover (20) also surrounds a part (10, 3) of the other force input element (1/2/10/3) with generation of a circumferential gap, the cover (20) comprises a waisting (23) extending inwards, opposing a shoulder (19) on the other force input element with a small axial separation, such that on a radial overload as well as an axial overload, the other force input element rests on a part of the cover (20) after a small deflection and said cover (20) is embodied to be sufficiently rigid to be able to transfer the overload forces from one force input element (6/7) to the other force input element (1).

摘要翻译： 具有两个力输入元件（1,6,7）的力传感器技术领域本发明涉及一种具有两个力输入元件（1,6,7）的力传感器，用于测量的力和支撑力（11）被提供到该力输入元件（1,6,7），由此两个力输入元件被构造为基本上旋转对称， 在轴向方向上，用于测量的力和支撑力沿径向引入。 在轴向上布置在两个力输入元件之间的弹簧元件（5）将其连接，并且将其负载相关的变形例如通过应变测量条和基本上管状的盖板转换为电信号 连接到两个力输入元件中的一个围绕弹簧元件。 根据本发明，力传感器包括集成的过载保护装置，其中盖（20）还围绕另一个力输入元件（1/2/10/3）的一部分（10,3），同时产生周向间隙 ，盖（20）包括向内延伸的腰部（23），其与另一个力输入元件上的肩部（19）以小的轴向间隔相对，从而在径向过载和轴向过载时，另一个力输入 元件在小偏转之后搁置在盖（20）的一部分上，并且所述盖（20）构造成足够刚性以便能够将过载力从一个力输入元件（6/7）传递到另一个力输入 元素（1）。

公开(公告)号：EP1963807A1

公开(公告)日：2008-09-03

申请号：EP06818791.3

申请日：2006-11-24

申请人： SARTORIUS AG

发明人： MUECK, Tanja ,  RELLING, Volker ,  SCHULZE, Werner ,  STEPS, Michael ,  COVIC, Helga

IPC分类号： G01L1/22 ,  G01G3/14

CPC分类号： G01L1/2243 ,  G01B7/20 ,  G01G3/1414 ,  G01L1/2287

摘要： Disclosed is a precision force transducer comprising a spring element (1) whose load-dependent deflection is converted into an electrical signal by means of strain gauge elements (10). The spring element (1) is made of a precipitation-hardening basic nickel alloy that has a nickel content ranging from 36 to 60 percent and a chromium content ranging from 15 to 25 percent while the strain gauge elements are composed of a polymer-free layer system, thus making it possible to produce a precision force transducer which features great accuracy, a low amount of creeping, and low sensitivity to moisture.

公开(公告)号：EP1470398B1

公开(公告)日：2006-05-17

申请号：EP03704401.3

申请日：2003-01-15

申请人： SARTORIUS AG

发明人： SCHULZE, Werner ,  WALD, Michael

IPC分类号： G01G23/00 ,  G01G19/414

CPC分类号： G01G19/4142 ,  G01G23/005

摘要： The invention relates to a force sensor with two force input elements (1, 6/7), to which the force for measuring and the support force (11) are supplied, whereby both force input elements are embodied to be essentially rotationally symmetrical, separated in the axial direction and the force for measuring and the support force are introduced in the radial direction. A spring element (5), arranged in the axial direction between the both force input elements, connects the same and the load-dependent deformation thereof is converted into an electrical signal, for example, by means of strain measurement strips and an essentially tubular cover connected to one of the both force input elements surrounds the spring element. According to the invention, the force sensor comprises an integrated overload protection, whereby the cover (20) also surrounds a part (10, 3) of the other force input element (1/2/10/3) with generation of a circumferential gap, the cover (20) comprises a waisting (23) extending inwards, opposing a shoulder (19) on the other force input element with a small axial separation, such that on a radial overload as well as an axial overload, the other force input element rests on a part of the cover (20) after a small deflection and said cover (20) is embodied to be sufficiently rigid to be able to transfer the overload forces from one force input element (6/7) to the other force input element (1).