Abstract: The present invention relates to a box, to a blank or blank assembly, and to a method and device for forming a box made of a corrugated cardboard sheet material having a strap comprising at least four main rectangular panels, provided with at least one series of flaps suitable for at least partially forming the bottom and/or the tip of box, at least two of said main side panels being connected to a main central panel via intermediate panels forming cut corners without flaps. At least tow of the cut corners are formed by at least two rectangular cut side portions which are connected together or to the adjacent main panel by folding line, said cut side portions having a width of between 3 mm and 20 mm.

Abstract: The system comprises a radiator, a sensor (21) fixed to the moving object, a circuit for processing the signals from the sensor in order to determine their amplitudes and a computation processor with a base of processing algorithms. The system also has a multiplexer (24) for sequentially multiplexing on one channel the detector signals from the sensor (21), a device (25) for sampling the signal coming from the multiplexer (24), of amplitude A and pulsation .omega., multipliers (30, 31) for multiplying the samples from the sampling device (25) respectively by reference signals .omega.t and cos .omega.t and accumulates (33, 35, 34, 36) for accumulating the two sums of the products of the multiplications for a period at least equal to a period ##EQU1## before supplying them to the computation processor (22), which extracts from them the amplitude A.The systrem can be applied well to a helmet aiming device.