Force-measuring ring having an annular housing
AssigneePiezocryst Advanced Sensorics GmbH
InventorsAlexander Schricker, Alparslan Turan, Alexander Friedl
Life of this patent
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Abstract
A force-measuring ring includes an annular housing which contains at least one piezoelectric measuring element, and a pressure transmission element which is attached to the housing via inner and outer circular-annular membrane areas. The inner and outer membrane areas of the force measuring ring are situated on opposite sides of a symmetry plane defined by the at least one piezoelectric measuring element.
Claims10
A force-measuring ring comprising an annular housing containing at least one annular piezoelectric measuring element that defines a symmetry plane, the annular housing comprising:
- a first housing part with an annular inner flange, a first pressure transmission element and an outer membrane area, and
- a second housing part with an annular outer flange, a second pressure transmission element and an inner membrane area,
- said inner membrane area being located between the annular inner flange and the second pressure transmission element, and said outer membrane area being located between the annular outer flange and the first pressure transmission element,
- said inner membrane area and said outer membrane area being situated on opposite sides of said symmetry plane.
A force-measuring assembly which comprises:
- an annular housing which includes opposing first and second generally L-shaped annular housing parts,
- said first generally L-shaped annular housing part including a first pressure transmission base having a first web part that extends in an outer direction, and an inner flange that extends from said first base in an axial direction, and
- said second generally L-shaped annular housing part including a second pressure transmission base having a second web part that extends in an inner direction and an outer flange that extends from said second base in an axial direction,
- said first web of said first base contacting said outer flange and said second web of said second base contacting said inner flange, and
- at least one annular piezoelectric measuring element positioned between said first and second bases and defining an imaginary symmetry plane, said first and second web parts being located on opposite sides of said imaginary plane.
Dependencies are inferred from the claim text.