Abstract: An auxetic web structure or field structure useful for a medical implant, combining the advantageous mechanical properties of auxetic structures and stretchable interconnects in such a way as to provide an auxetic structure which is particularly stretchable, while at the same time providing sufficiently large areas which are subjected at most to only minor stresses. This structure takes advantage of the superior mechanical properties offered by auxetic metamechanical materials (hereafter referred to as auxetic) and improves their stretchability and compressibility by incorporating interconnects into the auxetic framework.

Abstract: A magnetic field measuring device having a cantilevered, mechanically vibratable, rectangular substrate strip, at least one flat side of the substrate strip being coated with a magnetostrictive material system, further having drive means designed for the temporally periodic exertion of a force component directed perpendicular to the flat sides of the substrate strip on at least one part of a flat side of the substrate strip with a predetermined excitation frequency and having a detection device for detecting an electrical signal generated by the vibration of the substrate strip, wherein a. the substrate strip is formed from a material with a modulus of elasticity greater than 5 GPa and b. the excitation frequency is set up as a function of the dimensions of the substrate strip in such a way that the substrate strip oscillates in mechanical resonance and forms a U-mode, and c.

Abstract: The invention relates to a force sensor having a layer sequence with at least two electrically conductive, magnetic layers which are arranged in succession and spaced apart from one another in a vertical direction. In each case, one separating layer is arranged between two adjacently arranged magnetic layers. Adjacently arranged magnetic layers have magnetostriction constants which are different from zero and have different signs. Each of the magnetic layers have one magnetization direction. In the quiescent state of the layer sequence, the magnetization directions of two adjacent magnetic layers are oriented essentially in parallel owing to ferromagnetic coupling, or essentially in antiparallel owing to antiferromagnetic coupling. Furthermore, the invention relates to an array for determining the mechanical deformation in a first direction of a carrier, a pressure sensor having such an array, and a method for determining a force acting on a force sensor.

Abstract: A sensor device having a magnetostrictive force sensor is provided. To detect a force, the sensor device contains a TMR force sensor element having a magnetic detection layer of material having a magnetostriction coefficient ??|5·10?6|, a magnetically harder reference layer, and a tunnel barrier disposed between these layers. Established in the detection layer is a starting magnetization that relative to the magnetization of the reference layer, which is directed in the direction of force, forms an angle of other than 0° and thus is rotated out of its starting position under the effect of the force.

Abstract: A sensor device having a magnetostrictive force sensor is provided. To detect a force, the sensor device contains a TMR force sensor element having a magnetic detection layer of material having a magnetostriction coefficient &lgr;≧|5·10−6|, a magnetically harder reference layer, and a tunnel barrier disposed between these layers. Established in the detection layer is a starting magnetization that relative to the magnetization of the reference layer, which is directed in the direction of force, forms an angle of other than 0° and thus is rotated out of its starting position under the effect of the force.