Abstract: An electronic ignition system for an internal combustion engine is described herein. The ignition system includes a sensor assembly provided with two sensing elements configured and sized to detect teeth mounted on an outer cylindrical surface of the rotor of the voltage generator and to supply trigger signals to a controller. For each piston of the combustion engine, two teeth are provided onto the rotor. A first tooth is positioned to be detected before the piston reaches its top dead center when the rotor rotates in a forward direction and a second tooth is positioned to be detected before the piston reaches its top dead center when the rotor rotates in a reverse direction.

Abstract: A telemetric spacial data recorder for the elaboration of a floor plan is described herein. The telemetric spacial data recorder includes a base module, a remote module, a hand held module and a data acquisition device. The distances between (a) the base module and the remote module, (b) the remote module and the hand held module and (c) the hand held module and a target point of a physical object are measured by electronic distance measuring devices. Similarly, the angle relations between, (i) the base module and the remote module, (ii) the remote module and the hand held module and (iii) the hand held module and the target point of a physical object are measured by electronic angle measuring devices. The measurement devices are linked to the data acquisition device which makes a geometrical construction to determine the relative spacial position of the target point of the physical surface with respect to the spacial position of the base module.