Abstract: A circuit carrier includes the following: a carrier body having an opening arranged to allow the rotating parts of the cardan shaft to pass through and engages the rotating part of the cardan shaft; a circuit assembly surface that is provided on the carrier body as a radially extending surface; at least one elevation foot provided as an axially extending projection on the circuit assembly surface; a circuit member provided on the elevation foot such that it does not contact the circuit assembly surface; at least one channel provided on the circuit assembly surface; at least one retaining hole provided on the circuit assembly surface; a coating provided to completely encapsulate said circuit element and to at least partially fill the recess and completely fill the retaining hole.

Abstract: A system for determining the number of revolutions of a cardan shaft, having at least a magnet and at least a hall sensor is positioned to provide magnetic interaction between them, characterized by connecting one of the magnet and hall sensor onto either the rotating elements of the cardan shaft and the other to a fixed point and including a detection element for detecting the revolution rate by correlating to the revolution and the pulse created by the hall sensor as a result of interaction between the magnet and the hall sensor, when the cardan shaft rotates.

Abstract: A cardan shaft slip distance change detection system for determining the amount of length change of the cardan shaft, including a moveable element and a stationary element associated with a telescopic approach to compensate for the change of distance caused by the vehicle's axle movements. At least two conductive elements are configured as one of them connected to a fixed point, another to the moveable element. A power element is provided to supply power to at least one of the conductive elements. A detection unit measures the electrical value change provided by the electrical interaction between the conductive elements and correlating it with the distance between the conductive elements.

Abstract: A cardan shaft slip distance change detection system for determining the amount of length change of the cardan shaft, including a moveable element and a stationary element associated with a telescopic approach to compensate for the change of distance caused by the vehicle's axle movements. At least two conductive elements are configured as one of them connected to a fixed point, another to the moveable element. A power element is provided to supply power to at least one of the conductive elements. A detection unit measures the electrical value change provided by the electrical interaction between the conductive elements and correlating it with the distance between the conductive elements.

Abstract: A system for determining the number of revolutions of a cardan shaft, having at least a magnet and at least a hall sensor is positioned to provide magnetic interaction between them, characterized by connecting one of the magnet and hall sensor onto either the rotating elements of the cardan shaft and the other to a fixed point and including a detection element for detecting the revolution rate by correlating to the revolution and the pulse created by the hall sensor as a result of interaction between the magnet and the hall sensor, when the cardan shaft rotates.