Abstract: An accelerometer comprising a plurality of proof-masses moveable along a measurement axis; a respective spring rigidly attached to each proof-mass, configured to exert an elastic recall on the proof-mass in the measurement axis; and a fixed stop associated with each proof-mass, arranged to intercept the proof-mass when the acceleration in the measurement axis increases by a step. The proof-masses are suspended in series with respect to one another by springs in the measurement axis, the stops being arranged to successively intercept the respective proof-masses for increasing thresholds of acceleration.

Abstract: The invention relates to a floating state detection circuit of a node, comprising a first conductivity type MOS transistor (M1) connected between the node (N) and a first power supply line (Vss); and a second MOS transistor (M2) of conductivity type complementary to the first conductivity type, controlled by the node (N) and connected between the gate of the first transistor (M1) and a second supply line (Vdd). In addition, a third MOS transistor (M3) of the first conductivity type connected between the gate of the first transistor (M1) and the first supply line (Vss) may be controlled by the node (N).

Abstract: An accelerometer comprising a plurality of proof-masses moveable along a measurement axis; a respective spring rigidly attached to each proof-mass, configured to exert an elastic recall on the proof-mass in the measurement axis; and a fixed stop associated with each proof-mass, arranged to intercept the proof-mass when the acceleration in the measurement axis increases by a step. The proof-masses are suspended in series with respect to one another by springs in the measurement axis, the stops being arranged to successively intercept the respective proof-masses for increasing thresholds of acceleration.

Abstract: The invention relates to an accelerometer comprising a plurality of proof-masses (M1-M4) moveable along a measurement axis (AB); a respective spring (K1-K4) rigidly attached to each proof-mass, configured to exert an elastic recall on the proof-mass in the measurement axis; a fixed stop (S1-S4) associated with each proof-mass, arranged to intercept the proof-mass when the acceleration in the measurement axis increases by a step; and an electrical contact associated with each stop, configured to be closed when the associated proof-mass reaches the stop. The proof-masses are suspended in series with respect to one another by springs in the measurement axis, the stops being arranged to successively intercept the respective proof-masses for increasing thresholds of acceleration.

Abstract: The invention relates to a floating state detection circuit of a node, comprising a first conductivity type MOS transistor (M1) connected between the node (N) and a first power supply line (Vss); and a second MOS transistor (M2) of conductivity type complementary to the first conductivity type, controlled by the node (N) and connected between the gate of the first transistor (M1) and a second supply line (Vdd). In addition, a third MOS transistor (M3) of the first conductivity type connected between the gate of the first transistor (M1) and the first supply line (Vss) may be controlled by the node (N).

Abstract: The invention relates to an accelerometer comprising a plurality of proof-masses (M1-M4) moveable along a measurement axis (AB); a respective spring (K1-K4) rigidly attached to each proof-mass, configured to exert an elastic recall on the proof-mass in the measurement axis; a fixed stop (S1-S4) associated with each proof-mass, arranged to intercept the proof-mass when the acceleration in the measurement axis increases by a step; and an electrical contact associated with each stop, configured to be closed when the associated proof-mass reaches the stop. The proof-masses are suspended in series with respect to one another by springs in the measurement axis, the stops being arranged to successively intercept the respective proof-masses for increasing thresholds of acceleration.

Abstract: A hockey training device includes a substantially elevated panel and a substantially horizontally positioned board having a top playing surface on which a puck is to be moved, following instantly on-and-off conditions of lights distributed in desired locations on the playing surface. The elevated panel displays the locations of the lights with the instant on-and-off condition of the lights to guide the player in a head-up position, to move the puck to the location of the light which is currently turned on, on the playing surface.

Abstract: A hockey training device includes a substantially elevated panel and a substantially horizontally positioned board having a top playing surface on which a puck is to be moved, following instantly on-and-off conditions of lights distributed in desired locations on the playing surface. The elevated panel displays the locations of the lights with the instant on-and-off condition of the lights to guide the player in a head-up position, to move the puck to the location of the light which is currently turned on, on the playing surface.

Abstract: To acquire measurement data elements during a tomography type experiment in nuclear medecine, with a gamma camera having two detector heads, each of these heads is oriented on a sighting center P while the set of two heads rotates about a center of rotation Ia of the apparatus, the center of rotation being offset from the sighting center. It is shown that this approach provides speedier operation for the acquisition and also contributes to the preparation of tomography images that are more precise and more easily computed.

Abstract: To acquire measurement data elements during a tomography type experiment in nuclear medecine, with a gamma camera having two detector heads, each of these heads is oriented on a sighting center P while the set of two heads rotates about a center of rotation Ia of the apparatus, the center of rotation being offset from the sighting center. It is shown that this approach provides speedier operation for the acquisition and also contributes to the preparation of tomography images that are more precise and more easily computed.

Abstract: A fluid tight container 11 defines a conical internal cavity 35, and has an upper feed pipe 12 and a lower outlet opening 14. A cylindrical stirrer 15 is wholly enclosed in the cavity, and is driven in a circular oscillating manner by an external eccentric mechanism coupled to an extension of the stirrer. This arrangement makes it possible to mix products of high viscosity and gas without excessive heating and leakage, by virtue of the exclusive use of static fluid-tightness.