Abstract: A device for measuring local electric conductivity of plasma, comprising a probe, which is kinematically coupled to a drive mechanism and has a series circuit including an inductive sensor, a measuring oscillator, and a detector having one output coupled, via an optoelectronic converter, to a differential stage having a switch and a memory member. An output of the differential stage is coupled to one input of a measurement recording unit having another input coupled to a unit for feeding commands which is electrically coupled to an electropneumatic control unit accommodating air valves of drive mechanisms of the probe and calibration crystal, the air valve being coupled to pneumatic cylinders of the drive mechanisms by means of flexible bases made of an insulating material.

Abstract: The shock excited pulse transformer comprises at least two stages, each having a primary winding equipped with a capacitor and a switch device and a secondary winding. The second windings are connected in series and in all stages except the last one are coiled with two parallel conductors insulated from each other. In the first stage one conductor is connected to the output of the charging device and the other is grounded, whereas in all other stages capacitors 7 of the circuits of the primary windings 2 are inserted between these conductors in parallel.The shock excited pulse transformer is basically designed for supply of acceleration tubes.

Abstract: A magnetohydrodynamic device having a duct for a conducting gas to flow at an angle with the direction of the magnetic field induction vector. The duct is situated in the magnetic system and is provided with a plurality of electrodes adapted to interact electrically with the gas, whereas the cross-sectional shape of the duct working space is bounded by a closed contour formed by a curve inscribed into a rectangle having its sides a.gtoreq.b, while the minimum radius R of curvature of said curve is related to the distance x from the entry to the duct for the conducting gas to flow, to the cross-section under consideration by the following formula: ##EQU1## where P.sub.o and S.sub.o stand, respectively, for the perimeter and cross-sectional area of the duct 1 at the entry thereof, and 0.5.ltoreq..alpha..ltoreq.1.

Abstract: Disclosure is made of a self-optimizing control system for an object with a unimodal quality function. The system comprises an object, a divider, a band-pass filter, an averaging filter, a multiplier, a final control element and an adder which are all placed in series to form a closed loop. The system further includes a search signal generator connected to a second input of the adder. The object's input is also connected to a second input of the divider. Second and third inputs of the final control element are connected to an input and output, respectively, of the band-pass filter. An output of the final control element is connected to a second input of the multiplier.