Sartorius Ag

Otto Bock Healthcare Products Gmbh

Michael Wald

Werner Schulze

The invention relates to a sensor device () for measuring an axial force in the longitudinal pipe direction of a pipe () and/or at least one torque, having a measuring element () comprising an adapter connection () connected to the pipe by means of a flanged socket part, by means of which the pipe can be fixedly coupled to an adjustment adapter (), wherein the axial force and the torque can be fed into the adjustment adapter and can be measured by means of strain gauges () disposed in a sensor area () between the adapter connection and an end of the flanged socket part () opposite the adapter connection at strain gauge locations, wherein the flanged socket part having the sensor area is designed in a pipe shape, wherein the sensor area extends from the adapter connection to the end of the flanged socket part and has a smaller outer diameter than the end of the flanged socket part, wherein the end of the pipe facing the adapter connection and extending past the end of the flanged socket part toward the adapter connection is force decoupled from the sensor area and from the adapter connection, and wherein at least three strain gauge measuring locations are disposed on the circumference of the sensor area.

Pipe-shaped sensor device

A force sensor with two force input elements to which the force to be measured and the support force are applied. The two force input elements are substantially rotationally symmetrical and are axially spaced apart, and the force to be measured and the support force are applied in a radial direction. A spring element, arranged axially between the two force input elements connects these elements and its load-dependent deformation is converted into an electrical signal. A substantially tubular cover connected to one of the two force input elements surrounds the spring element. The cover surrounds a portion of the other force input element, forming a circumferential gap. The cover has an inwardly projecting constriction that is spaced apart by a small axial distance from an opposite shoulder on the other force input element.

Growing community of inventors

Hildesheim, Germany

Michael Wald