An in-situ creep capsule for a nuclear reactor, and methods of using. The capsule has a modular design which allows it to be used to test multiple different types and sizes of specimens and to be adapted for use in various different nuclear reactor configurations. The capsule may include an integrated heat exchanger to cool measuring instrumentation, which allows the capsule to be used for gathering data in-situ in next generation reactors with higher temperatures while the reactor is running.

A method for detecting a hardware configuration of a device intended to be carried aboard an aircraft turbomachine and controlled by a two-channel protection calculator (8), comprising a power supply able to supply the device, a first measuring box (16) able to measure a first voltage V.sub.s1 at the output of the device and a second measuring box (18) capable of measuring a second voltage V.sub.s2 at the output of the device: a) Send a control voltage to the input of the equipment Vc; b) Measure the first voltage V.sub.s1 and the second voltage V.sub.s2; c) Infer the hardware configuration of the device from the values of the first and second voltages measured V.sub.s1 and V.sub.s2.

A magnetic sensing tool (MST) uses differentials in induced voltage to detect the approximate location of a ferric target tool within surface pressure control equipment associated with a wellhead. The MST comprises a transmitter coil and two receiver coils configured such that a voltage generated in the transmitter coil induces a baseline voltage, and a baseline voltage differential, in the receiver coils when no target tool is present. A target tool passing axially through the MST will disrupt the magnetic fields inducing the voltages, such that variations in the voltage differential can be used to detect the approximate location of the target tool. The MST can be deployed alone or in series depending on the requirements of detection of the target tool.

A turbine control system is provided for decreasing the response time between readings of the speed of the turbine and changing a valve position in response thereto. The speed control system includes a speed probe that detects the speed of the turbine and a turbine valve that controls the flow of fluid or gas from or to the turbine. A controller receives a speed signal from the speed probe and sends valve position commands to the turbine valve. The controller also sends support functions to the turbine valve. The controller sends the valve position commands at a faster rate than the support functions.

The present invention relates to an improved tocodynamometer transducer that exhibits increased mechanical stability, dynamic range, accuracy, and reliability. Improvement components include top and bottom enclosures, plunger, ferrite core, LVDT transformer, transformer housing, flat spring, and other components. The flat spring includes four spring ribs that are symmetrical, curvilinear in shape, identical in path length, separated by an air gap, and equally spaced between the outer ring, inner ring, and the spring ribs that are adjacent. The spring constant is identical along two or more axes improving the accuracy of the improved tocodynamometer transducer. The ferrite core travel length is increased and mechanically constrained to remain between the LVDT transforming winding increasing the dynamic range and the linearity of the voltage output of the improved tocodynamometer transducer.

A device for the measurement of the angular position of a shaft, having: a support upon which a primary winding and at least two secondary windings in mutual phase opposition are configured, to form a first inductive positional sensor, and a second positional sensor having at least two secondary windings in mutual phase opposition and arranged on the same support, opposite the secondary windings of the first positional sensor with respect to a median line, such that a motif is formed in each case on either side of the median line, wherein the primary winding encloses all the secondary windings. A unit having a device of this type and a target having two helixes of opposing pitches.

A method for detecting a short circuit to ground or to the operating voltage of a signal line (11, 12) of a resolver (16) has the following steps: measuring the potential of the signal lines (13a, 13b; 14a, 14b) of the receiver coil (18) with respect to ground at two sampling times (R and F) provided symmetrically at the middle of the excitation period; calculating an offset value for a signal line pair (13a, 13b; 14a, 14b) by calculating the average value of the four measured values (U.sub.HR, U.sub.LR, U.sub.HF and U.sub.LF) for the associated receiver coil (17, 18); and identifying a short circuit and the potential to which the short-circuited line is connected in that the offset value is compared to threshold values.

The invention relates to an electronic assembly for peripheral devices such as sensors of an aircraft, comprising three generic interfaces differing from one another for coupling the assembly to at least one peripheral device and at least one digital evaluation unit, in particular arranged downstream, wherein the assembly is couplable to the peripheral device via at least one interface.

A shock strut assembly may comprise a strut cylinder and a strut piston configured to telescope relative to the strut cylinder. A torque link may be pivotally coupled to the strut cylinder. A rotational position sensor may be configured to measure an angle of the torque link relative to a plane parallel to a center axis of the strut piston. The rotational position sensor may be oriented such that the rotational position sensor is within a null accuracy band of the rotational position sensor when the strut piston is in a fully compressed state.

A magnetic measurement target is configured to be positioned inside a vehicle axle and to cooperate with at least two magnetic movement sensors to measure deformation of the axle. The magnetic measurement target includes a body with a fastener end for fastening to one end of the axle and a main portion. The main portion includes a slot formed in an axial direction to separate two longitudinal portions of the body. Each longitudinal portion of the body presents a target surface for which movement can be measured by a magnetic movement sensor.