Abstract: A vehicle seat suspension mat (12) comprises suspension springs (14) for supporting a seat cushion (16) and a pressure sensor module (18) arranged on the springs for being applied against a bottom surface of the seat cushion. The pressure sensor module produces an electrical signal responsive to pressure acting on it. The pressure sensor module comprises a base plate (20) and a film-type pressure sensor (22) arranged on the base plate. The pressure sensor includes a pressure-sensitive cell (36). The base plate comprises a frame (26) and an actuator (28) that is linked to the frame in such a way that it is capable of movement relative to the frame. The actuator is arranged against the pressure-sensitive cell of the film-type pressure sensor and comprises a fixation element (48) fixing the base plate to the springs. The fixation element provides a spacing between the base plate and the springs.

Abstract: A device, method, and system that allows the easy add on attachment of an applied-power sensor, assuring precise measurements over time, even in vibrating environments such as exercise environments. The device possesses structural qualities such that tightening the wrapping latch around a measured object/part presses a loaded spring between the object/part and the sensor, achieving and maintaining sufficient and constant contact, thus allowing continuously precise measuring. The device also includes a transmitter to transmit the measured data to an external data processing device and may include a processor to process the data before transmitting.

Abstract: A compressive force measurement device with a pressure-/voltage converter in chip technology features a spherical segment-shaped sensor area. The pressure-/voltage converter is disposed between one base disc and one cover disc, wherein the base disc and the cover disc are tensioned against one another by means of springs with essentially identical pulling force. Forces acting on the cover disc have the effect that the cover disc always positions itself perpendicularly to the direction of force, whereby some of the springs are additionally loaded and others are relieved and thereby a compensation of forces takes place that act obliquely on the compressive force measurement device.

Abstract: Force measuring device for measuring the force between a first element and a second element of an application, comprising a housing and a sensor arrangement, which is arranged in the housing, the sensor arrangement comprising a first part and a second part and the force between the first element and the second element determining a relative position between the first part and the second part, characterized by at least one spring element, which is positioned between the second element and a support region arranged on the housing, and is supported on the second element and the support region.

Abstract: A compressive force measurement device with a pressure-/voltage converter in chip technology features a spherical segment-shaped sensor area. The pressure-/voltage converter is disposed between one base disc and one cover disc, wherein the base disc and the cover disc are tensioned against one another by means of springs with essentially identical pulling force. Forces acting on the cover disc have the effect that the cover disc always positions itself perpendicularly to the direction of force, whereby some of the springs are additionally loaded and others are relieved and thereby a compensation of forces takes place that act obliquely on the compressive force measurement device.

Abstract: The invention relates to a method for determining the elastic deformation of components, especially parallel kinematic devices, under a load. Said method is characterised in that the geometry of the articulation points on the fixed platform (9) and the mobile platform (10) is determined; the replacement spring constants of the actuators (K1, K2, K3) and the replacement spring constants of the bearings are determined; the theoretical length of the actuators is determined; the theoretical position of all of the articulation points in the area is determined therefrom; the forces acting on the individual actuators are determined from said geometry and the load (F); and the real geometrical image and thus the real position of the mobile platform are determined from said forces. The real position is compared with the calculated theoretical position and is brought into line by the actuation of corresponding actuators.

Abstract: Force measuring device for measuring the force between a first element and a second element of an application, comprising a housing and a sensor arrangement, which is arranged in the housing, the sensor arrangement comprising a first part and a second part and the force between the first element and the second element determining a relative position between the first part and the second part, characterized by at least one spring element, which is positioned between the second element and a support region arranged on the housing, and is supported on the second element and the support region.

Abstract: Various sensors use an electro-active device (11) electrically connected to a detector circuit. The electro-active device (11) comprises an electro-active structure in the form of a continuous electro-active member (12) curving in a helix around a minor axis (13) which is in itself curved for example in a helix around a major axis (14). On activation by relative displacement of the ends (16) of the device (11), the electro-active structure twists around the minor axis due to the fact that the minor axis (13) is curved. The continuous member (12) has a bender construction of a plurality of layers (21) and (22) including at least one layer of electro-active material so that concomitantly with the twisting the continuous member (12) bends generating an electrical signal detected by the detector circuit. The electro-active device (11) is advantageous as a sensing element in a sensor because it has a large displacement, high sensitivity and low compliance.

Abstract: A path-measuring device for measuring a path covered by a moving object deflectable along a direction has at least a first component associated with the moving object and a stationary second component. The components are coupled with one another for converting a motion and/or deflection of the moving object into an electrical signal. Moreover, the path-measuring device has an evaluating device for converting the electrical signal into motion and/or position information.