An article under test, such as a wing or other aerodynamic component of an aircraft, is load tested by applying a desired load at a desired angle. When a change in attitude of the article under test is determined, a position of a load mechanism that provides the load to the article under test is changed in real time to maintain the desired angle. The load may also be dynamically adjusted according to the position of the article under test.

The invention pertains to a method for respectively determining the neutral temperature or the stressfree state in a rail section (1), wherein an ultrasonic signal is coupled into a representative volume of the rail profile perpendicular to its longitudinal direction, wherein the volume is subjected to stresses in the longitudinal direction of the rail section (1), wherein the stresses are measured, wherein an ultrasonic signal influenced by these stresses is decoupled, wherein a function describing the functional dependence of the decoupled ultrasonic signal on the introduced stress is determined, and wherein the stressfree state is determined based on the course of this function.

A control method, system and device for a flexible carbon cantilever beam actuated by a smart material is provided. The new control method, system and device aims to solve the problems of control overflow and instability that are likely to occur in the distributed parameter system constructed in the prior art. The method includes: acquiring an elastic displacement of the flexible carbon cantilever beam in real time as input data; and obtaining, based on the input data, a control torque through a distributed parameter model constructed in advance, and performing vibration control on the flexible carbon cantilever beam. The new control method, system and device improves the control accuracy and stability of the distributed parameter system.

A method for monitoring at least one support structure in an above ground building, includes at least one strain gauge, wherein each of the strain gauges is attached to one of the support structures in the above ground building to detect the strain of the support structure at the area of attachment. An interrogator unit is connected to a gauge having a connection means providing access to the strain gauges for the interrogator unit, wherein the interrogator unit provides an output of strain values at each of the strain gauges. The embodiment also includes a monitoring system connected to the interrogator unit, wherein the monitoring system outputs an alarm signal when an evaluation of the strain value any of the strain gauges indicates a significant condition wherein the alarm signal in connected to the building control system to execute an action.

A pipeline pressure test that accounts for measurement uncertainties includes a method for performing a pressure test of a pipe section of a pipeline including receiving a desired pressure to be applied to the pipe section and a duration of time the desired pressure is to be applied to the pipe section, receiving a pressure measurement of a fluid, a temperature measurement of the fluid, a volume measurement of the fluid, and a pipe section strain measurement, determining a change in fluid pressure and a volume change, determining a pressure change uncertainty and a volume change uncertainty, checking that the pressure change uncertainty is within a pressure uncertainty threshold and that the volume change uncertainty is within a volume uncertainty threshold, determining whether the desired pressure has been applied to the inner surface of the pipe section for the duration of time; and outputting a result of the testing.

The present invention relates to a sensor device, system, and monitoring system for monitoring force and inclination of load supporting members, such as temporary support props. The sensor devices include a tubular member that interface with and slidably/detachably attached to the temporary support props, and sensors on the tubular member for measuring force, inclination and position of the temporary support props for construction and demolition work. The sensor device includes a controller for processing data from the sensors. The sensor system includes a wireless device that communicates with the sensor device. The sensor system further comprises positioning device, such that precise location or position of the sensor devices may be detected/calculated by the sensor system. The monitoring system includes a server that communicates one or more sensor systems to form a network.

An inspection device for subway tunnel based on three-dimensional laser scanning includes a three-dimensional laser scanner, an adaptive structure of a track trolley, a power control module for the track trolley, a photoelectric sensor and a body of the track trolley. The power control module is arranged on the body. A support rod is vertically arranged on the power control module, and the three-dimensional laser scanner is mounted at a top of the support rod. The adaptive structure is symmetrically arranged at two sides of the body of the track trolley, and the photoelectric sensor is arranged in the body of the track trolley. The inspection device is designed to be modular, which is convenient to carry and repair, and easy to mount. In addition, the inspection device has low labor cost due to less manual intervention, and the inspection efficiency can be improved.

A coiled tubing system includes a coiled tubing unit with a coiled tubing string carried by the unit, the coiled tubing string having a stinger end; an injector support frame having an upper and lower ends; a coiled tubing injector disposed at the upper end of the support frame and engaging the coiled tubing string; and a loading device supported between the coiled tubing injector and the lower end of the frame, the loading device attached to the stinger end of the coiled tubing string. The system may include a riser tube disposed between the upper end of the frame and the loading device, coupling a housing of the loading device to a base of the coiled tubing injector, the coiled tubing string extending through the riser. The system may include a support device supporting the loading device, the support device pivotally supporting the loading device relative to the frame.

A method for fatigue-monitoring of a submarine cable during off-shore jointing or reparation includes: a) determining a plurality of curvature values concerning a curvature of the submarine cable at different points in time during the off-shore jointing or reparation, b) determining a plurality of strain ranges of the submarine cable based on the plurality of curvature values, and c) determining a fatigue damage of the submarine cable based on the plurality of strain ranges.

A method and system for detecting displacements in installed pipeline systems and identifying components and their properties, comprising: arranging/attaching a marker to at least one of the components of the installed pipeline system, recording/scanning/photographing the marker (3) and generating a baseline image of the initial state, assigning properties and data to and depositing them on the marker, storing the baseline image at a memory location, re-recording/re-scanning/re-photographing the marker, autonomously detecting the marker and comparing it with the stored baseline image of the corresponding marker, determining alterations or displacements of the marker, outputting determined values, wherein at least two markers are arranged such that they are recorded together on a baseline image.