Abstract: A speed sensor assembly (114) includes a printed circuit board (PCB) (120) having a first main side and a second main side, a magnet (116) directly coupled to the first main side of the PCB (120), a sensor (118) electrically connected to the PCB (120), and a pole piece (125) directly coupled to the magnet (116) and to the sensor (118), wherein the magnet (116) includes a slot partially enclosed by the pole piece (125). The speed sensor assembly (114) including a slotted magnet (116) to reduce magnetic field amplitude for single sensing element hall effect sensor applications. The speed sensor assemblies (114) operate with both minimum and maximum air gaps.

Abstract: A disclosed rotary position sensor may include a sensor housing defining an interior cavity. A first rotor may be positioned and rotatable within the interior cavity, the first rotor including a first magnet. Furthermore, the rotary position sensor may include a second rotor positioned and rotatable within the interior cavity, the second rotor including a second magnet. The first rotor and the second rotor may be individually rotatable.

Abstract: An ignitor for an electronic detonator, the ignitor including a microcontroller and a capacitor mounted on a printed circuit board (PCB) and electrically connected to one another, the microcontroller configured to discharge the capacitor in response to an actuation signal received by the microcontroller, a pair of conductive traces extending from the capacitor, a resistive element extending between the conductive traces and configured to radiate heat in response to current flowing therethrough, and a shroud disposed over the resistive element, the shroud containing a pyrotechnic composition that at least partially covers the resistive element.

Abstract: Magnetic field sensors are disclosed. Furthermore, a method for providing magnetic field sensors is disclosed. In one implementation, a magnetic field sensor includes a magnet and a magnetic field sensing element. In some implementations, the magnet at least partially surrounds the magnetic field sensing element. Specifically, in some implementations, the magnet includes a cavity defined by one or more surfaces of the magnet. In some implementations, the magnetic field sensing element is disposed in the cavity.

Abstract: An ignitor for an electronic detonator, the ignitor including a microcontroller and a capacitor mounted on a printed circuit board (PCB) and electrically connected to one another, the microcontroller configured to discharge the capacitor in response to an actuation signal received by the microcontroller, a pair of conductive traces extending from the capacitor, a resistive element extending between the conductive traces and configured to radiate heat in response to current flowing therethrough, and a shroud disposed over the resistive element, the shroud containing a pyrotechnic composition that at least partially covers the resistive element.