Abstract: A method for monitoring an ideal diode comprises controlling a source-gate voltage of a MOSFET of the ideal diode such that the ideal diode can be changed between an off and an on state with a first target value for a source-drain voltage. To detect error states, the source-drain voltage and the source-gate voltage are measured. A check is carried out to determine whether the source-drain voltage reaches the first target value within predefined error limits in the on state. A test mode is carried out, in which a second target value, smaller than the first target value, is set for the source-drain voltage. A check is carried out to determine whether the source-gate voltage reaches an upper threshold value when the test mode is being carried out. An error signal is output when the first target value and/or the upper threshold value is/are not reached.

Abstract: A method of manufacturing a pump element for a chamber under partial gas pressure, the pump element including a substrate covered with a getter layer based on metallic material, including the following steps: placing, in a vacuum processing chamber, the substrate and a target in said metallic material, propelling ions against the target to extract particles of metallic material therefrom and project them against a surface of the substrate at an oblique angle of incidence. A chamber under partial gas pressure containing a getter produced in this way.

Abstract: A method for monitoring an ideal diode comprises controlling a source-gate voltage of a MOSFET of the ideal diode such that the ideal diode can be changed between an off and an on state with a first target value for a source-drain voltage. To detect error states, the source-drain voltage and the source-gate voltage are measured. A check is carried out to determine whether the source-drain voltage reaches the first target value within predefined error limits in the on state. A test mode is carried out, in which a second target value which smaller than the first target value is set for the source-drain voltage. A check is carried out to determine whether the source-gate voltage reaches an upper threshold value when the test mode is being carried out. An error signal is output when the first target value and/or the upper threshold value is/are not reached.

Abstract: A turbine engine stage including a rotor wheel including a plurality of blades surrounded on an outside by a casing including a layer of abradable material on its inside surface facing free ends of the blades. At least one plane sensor for measuring clearance at blade tips is carried by the inside surface of the casing and is covered by the layer of abradable material.