Abstract: The invention relates to a measuring arrangement for testing workpieces, having at least one optical fibre (11, 12, 13, 14, 15, 16, 17, 18) assigned to a workpiece (10), in which or each the optical fibre (11, 12, 13, 14, 15, 16, 17, 18) is designed as a Bragg grating sensor, and in which the or each optical fibre (11, 12, 13, 14, 15, 16, 17, 18) is arranged in the region of a surface of the workpiece.

Abstract: An electrical conductor or cable splice is formed by passing the conductor ends from which any insulation has been removed through a ceramic insert so that portions of the conductor ends protrude out of the ceramic insert. These protruding portions are then mechanically and electrically connected to each other, by example, by soldering, welding, or brazing. A metal sleeve is then pushed over the ceramic insert and the ends of the sleeve are hermetically sealed to the metal jackets of the conductors or cable. The seal is accomplished, for example, for soldering. In this manner a so-called parallel connection is easily made in which the conductors double back. A longitudinal connection can also be made in which the conductors continue in the same direction through two inner sleeves and through an outer sleeve.

Abstract: A method for manufacturing an encapsulated probe or measuring head on sheathed thermocouples, in which thermocouple wires are imbedded in an outer metal sheath with the interposition of an insulating material, and wherein a thermal bead is produced by either an electric or autogeneous process at the sections of the thermocouple wires projecting from the metal sheath at the measuring head end of the wire.

Abstract: A method of applying miniaturized high-temperature free-grid strain gauges to a test location by welding an auxiliary temporary backing to a strain gauge equipped with supporting or backing foil and connecting excess-length connecting webs thereto for manipulation of the gauge. Thereafter, the strain gauge is adhered, grid side facing downwardly, to a porous backing by means of an adhesive, the backing foil is then stripped off and the adhesive dissolved by a chemical solvent. The strain gauge is then applied to the test location and affixed thereto.