Measuring element, force sensor and measuring assembly for measuring forces

A technology of force measuring sensor and measuring element, applied in the direction of measuring force, force/torque/work measuring instrument, measuring device, etc. Effects of material properties
CN102889953AActive Publication Date: 2013-01-23MAGNA STEYR FAHRZEUGTECHN
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
MAGNA STEYR FAHRZEUGTECHN
Publication Date
2013-01-23

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Abstract

The invention relates to a measuring element, a force sensor and a measuring assembly for measuring forces. The measuring element (1a..1c) for measuring forces comprises two spaced-apart core portions (2a, 2b) and four identical spaced-apart webs (A..D, A'..D') which are aligned along a longitudinal axis (z) and are arranged in a square (Q), connecting the two core portions (2a, 2b). Force sensors (3a, 3b, 3A..3D, 11, 12, 21, 22, 31..34) are only provided to the webs (A..D, A6..D6). Further, the force sensors (3a, 3b, 3A..3D) include two first strain gauges (11, 12) for measuring a force in a first direction (z), two second strain gauges (21, 22) for measuring a force perpendicular to the first direction (z), at least one third strain gauge (31, 33) for measuring a force at an angle of +45 degrees to the first direction (z) and at least one fourth strain gage (32, 34) for measuring a force at an angle of -45 degrees to the first direction (z). The strain gages (11, 12, 21, 22, 31..34) are arranged on a common substrate. Finally, a measuring assembly to be used with the measuring element (1a..1c) is provided.
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Description

[0001] related application

[0002] The present invention is based on provisional application US61 / 509,185 filed in the United States on July 19, 2011 and EP 12158446.0 filed in the European Patent Office on March 7, 2012, both of which are hereby incorporated by reference. technical field

[0003] The invention relates to a measuring element for force measurement, comprising two cores spaced apart from each other, each having at least one mounting surface for introducing a force to be measured; four identical webs spaced apart from each other (web), webs oriented along the longitudinal axis, arranged in a square, and connected to the two cores at webs spaced apart along the longitudinal line; and load cells on each of the webs. The invention also relates to a load cell and a measuring assembly for force measurement, in particular in combination with the measuring element described at the outset. Background technique

[0004] Deformation force measurement by means of measur...

Claims

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