Sensorised wheel hub unit and a method for detecting, in real time, forces and moments applied to an outer ring of the wheel hub unit in which piezoresistive ceramic plates are made of one piece with welded metal plates housed within respective recesses formed in an outer surface of the outer ring over respective races for rolling elements that there is a gap between the plates and a base wall of each recess; the temperature of the outer ring and the amplitude and frequency of first electrical signals (S1) associated with the sensors relating to the same race are analysed to determine a frequency value equal to the frequency of the first signal having the maximum amplitude and as many amplitude values (D1-Dn) as there are sensors associated with that race and each equal to the maximum amplitude of the first signal from each sensor, corrected according to temperature.

A piezoelectric strain sensor unit for a rolling bearing includes a piezoelectric strain sensor, and a sensor holder provided with a main body having a front face intended to be into contact with a component of the rolling bearing and a rear face, and with at least two flexible arms mounted on the main body and supporting opposite ends of the piezoelectric strain sensor, the piezoelectric strain sensor being axially located on the side of the rear face of the main body while remaining spaced apart from the rear face. The sensor holder is provided with a central pin which protrudes axially with regard to the front face of the main body and which is axially moveable with regard the main body, the central pin axially abutting onto the piezoelectric strain sensor.

A sensor arrangement for indirect detection of a torque of a rotatably mounted shaft includes a sensor with at least one sensor element arranged in the surroundings of a bearing of the shaft. The bearing is linked to a supporting structure. The sensor element is configured to detect a proportion of a bearing force acting in a predetermined direction. The torque of the shaft is configured to be calculated from the acting proportion of the bearing force. The sensor has at least one sensor body with an outer contour that supports a corresponding sensor element and is pressed into a receiving hole. The sensor element has a predetermined distance and a predetermined angle to the bearing.

A piezoelectric strain sensor unit for a rolling bearing includes a piezoelectric strain sensor, and a sensor holder provided with a main body having a front face intended to be into contact with a component of the rolling bearing and a rear face, and with at least two flexible arms mounted on the main body and supporting opposite ends of the piezoelectric strain sensor, the piezoelectric strain sensor being axially located on the side of the rear face of the main body while remaining spaced apart from the rear face. The sensor holder is provided with a central pin which protrudes axially with regard to the front face of the main body and which is axially moveable with regard the main body, the central pin axially abutting onto the piezoelectric strain sensor.

A guide carriage for use with a guide rail includes a main body and a separate raceway insert. A first carriage raceway that extends parallel to a longitudinal axis is disposed on the raceway insert. The first carriage raceway is assigned a first lateral face, which is disposed on that side of the raceway insert that is opposite the first carriage raceway. The first carriage raceway is assigned a row of rolling bodies capable of being brought into rolling engagement with the first carriage raceway and an assigned first rail raceway on the guide rail. The raceway insert is supported in a force-transmitting manner on the main body by way of the first lateral face. The raceway insert has a sensory layer which in the direction of the longitudinal axis extends across at least 80% of the length of the raceway insert.

Power transmitted from a cyclist to a bicycle through crank arms is indirectly measured by performing calculations on direct physical measurements. The direct physical measurements are taken from sensors that can be non-rotationally coupled to the frame of the bicycle. The sensors can be integrated into the frame or installed as a module within a standard, unmodified bicycle bottom bracket. Measured power can be viewed by the cyclist using a wirelessly connected user interface device.

A method and system for detecting forces and moments acting on a vehicle wheel, wherein an outer ring of a wheel hub unit has a plurality of strain sensors configured to generate first signals (Ds1) proportional to mechanical stresses on the outer ring and a temperature sensor generating a second signal (Ds2). Further, the detection system comprises a second processing unit configured to process third signals (Dv1,n) corresponding to selected vehicle state parameters; and a third processing unit that receives the third signals and the pseudo-sinusoidal signal and calculates said forces and moments on the vehicle wheel.

A device configured to be mounted on a mechanical component and to measure an axial load exerted on the mechanical component, the device including a ring provided with an inner cylindrical surface and with an outer opposite cylindrical surface, the inner and outer cylindrical surfaces delimiting the radial thickness of the ring. The device further provides at least one optical sensing fiber disposed in a first circumferential groove provided on one of the outer and inner cylindrical surfaces of the ring.

A sensor device for a rolling path insert of a track guide can be loaded by rolling bodies and is pressure-sensitive. The sensor device includes at least one tuple, extending in a rolling direction, of a number of sensors, which can each be signal-connected or are signal-connected to an evaluation device, by means of which a relevant difference signal can be determined from sensor signals of sensor pairs of the at least one tuple. The sensor device can be included in a rolling path insert, a guide carriage and a guide rail for a track guide, and a track guide.

A system is for detecting a location of a touch input on a surface of a propagating medium. The system includes a transmitter coupled to the propagating medium and configured to emit a signal. The signal has been allowed to propagate through the propagating medium and the location of the touch input on the surface of the propagating medium is detected at least in part by detecting an effect of the touch input on the signal that has been allowed to propagate through the propagating medium. The system includes a piezoresistive sensor coupled to the propagating medium. The piezoresistive sensor is configured to at least detect a force, pressure, or applied strain of the touch input on the propagating medium.