A seed planter is provided with a plurality of single or paired discs with each pair adapted to form furrows to receive seeds. Each disc is provided with a sensor to detect rotational speed of the disc. Each sensor transmits a signal corresponding to the rotational speed of the disc to a tow vehicle having a control system which compares the disc rotational speed to the tow vehicle travel speed. If the disc rotational speed drops below a predetermined value relative to the vehicle speed, this is indicative of disc plugging and/or furrow smearing, both of which are undesirable, such that corrective action can be taken by the operator of the vehicle or an autonomous vehicle.

An inductive rotational speed sensor, including: a coil body having a coil and connecting lines which at least partially extend axially or radially with respect to the coil windings; a casing formed from a plastics material and at least partially enclosing the coil body; and a fixing device for facilitating a configuration of the casing, the fixing device including: for radially extending connecting lines, a material core clearance in the casing so as to fix the electrical connecting lines at a mutual spacing when configuring the casing; or an anti-twist safeguard to prevent the coil body rotating relative to a tool used for configuring the casing while the latter is being configured, wherein the anti-twist safeguard partially protrudes from the casing, or extends at least up to an external surface of the casing. Also described is a related method.

An inductive rotational speed sensor, including: a coil body having a coil and connecting lines which at least partially extend axially or radially with respect to the coil windings; a casing formed from a plastics material and at least partially enclosing the coil body; and a fixing device for facilitating a configuration of the casing, the fixing device including: for radially extending connecting lines, a material core clearance in the casing so as to fix the electrical connecting lines at a mutual spacing when configuring the casing; or an anti-twist safeguard to prevent the coil body rotating relative to a tool used for configuring the casing while the latter is being configured, wherein the anti-twist safeguard partially protrudes from the casing, or extends at least up to an external surface of the casing. Also described is a related method.

In one aspect, a system for filtering signal interference from sensors signals includes a header comprising a frame and a powered component supported relative to the frame, and a sensor configured to detect electromagnetic waves indicative of a parameter associated with the header. In addition, the system includes an electronic control unit operably connected to the sensor such that the electronic control unit is configured to receive signals from the sensor associated with the detection of the electromagnetic waves. The electronic control unit is further configured to filter interference from the signals deriving from motion of the powered component relative to the sensor.

A method for switching between a degraded mode and a normal mode for determining the angular position of an internal combustion engine of a vehicle. The method includes the following steps, in a degraded mode: detecting the free space and the teeth of the toothed wheel of the crankshaft from the signal generated by the crankshaft sensor during the rotation of the crankshaft, determining the minimum rotation speed of each combustion top dead center of the crankshaft during a revolution of the crankshaft from the detected free space and the detected teeth, determining the angular positions of the crankshaft corresponding to the minimum determined rotation speeds, and switching to normal mode when, for each combustion top dead center, the difference between the determined angular position of the crankshaft and a reference angular position value is below a predetermined position threshold for at least one revolution of the crankshaft.

Embodiments presented provide for a system installable on a vehicle chassis that compensates for wheels and tires that vary from original manufacturer equipment to allow on-board safety systems to correctly ascertain and maintain proper vehicle dynamics.

The invention relates to a rotary encoder (10) for a machine, in particular a hoist, crane or the like, and to a method for operating a rotary encoder, the rotary encoder having a rotary encoder shaft (12) which is connectable to a shaft of a machine for detecting a rotation of the shaft, the rotary encoder having a frame (11) which is mountable on a machine, the frame (11) having an encoder element (13) disposed thereon for detecting a rotation of the rotary encoder shaft and a signal output element (14) for outputting a rotation angle signal and/or a speed signal, the rotary encoder having a bearing device (20) by means of which the rotary encoder shaft is rotatably mounted on the frame, the rotary encoder having an insulating device (19) which electrically insulates the rotary encoder shaft and the bearing device from the frame.

A detection device is for detecting a passage timing of a turbine blade. This detection device is provided with: a sensor including a magnet and a coil that is disposed at a position subject to magnetic flux generated by the magnet and is configured to detect an induced electromotive force based on a change in the magnetic flux accompanying passage of the turbine blade; and an analyzer configured to detect the passage timing of the turbine blade, on the basis of an integrated signal obtained by integrating a signal based on the induced electromotive force.

A detection device is for detecting a passage timing of a turbine blade. This detection device is provided with: a sensor including a magnet and a coil that is disposed at a position subject to magnetic flux generated by the magnet and is configured to detect an induced electromotive force based on a change in the magnetic flux accompanying passage of the turbine blade; and an analyzer configured to detect the passage timing of the turbine blade, on the basis of an integrated signal obtained by integrating a signal based on the induced electromotive force.

An inductive rotational speed sensor, including: a coil body having a coil and connecting lines which at least partially extend axially or radially with respect to the coil windings; a casing formed from a plastics material and at least partially enclosing the coil body; and a fixing device for facilitating a configuration of the casing, the fixing device including: for radially extending connecting lines, a material core clearance in the casing so as to fix the electrical connecting lines at a mutual spacing when configuring the casing; or an anti-twist safeguard to prevent the coil body rotating relative to a tool used for configuring the casing while the latter is being configured, wherein the anti-twist safeguard partially protrudes from the casing, or extends at least up to an external surface of the casing. Also described is a related method.