A method of monitoring turbine blade creep in a gas turbine engine is provided. The method includes: receiving an image of a turbine blade of a row of turbine blades, the image having been obtained using a borescope located in the engine adjacent a row of turbine blades; measuring on the image a distance between radially inner and radially outer landmarks on the turbine blade; and comparing the measured distance with a reference distance to determine an amount of creep-induced lengthening of the blade.

Bend test apparatus (100) for a hydraulic hose (200), the apparatus (100) comprising a main rack (10), at least one sliding rail (11) extending in a longitudinal direction (L) and a carriage (13) which is slidable on the sliding rail (11) in the longitudinal direction (L) and which can be displaced by an actuator (20), wherein the apparatus (100) further comprises a first fixture (1) that is rigidly attached to the main rack (10) to retain a first end (201) of the hydraulic hose (200) and a second fixture (2) that is rigidly attached to the carriage (13) to retain a second end (201) of the hydraulic hose (200), and wherein the apparatus (100) comprises a load cell (30) that is attached between the carriage (13) and the actuator (20) so as to detect a force (F) which is applied via the actuator (20) onto the carriage (13) and thereby onto the hydraulic hose (200) in the longitudinal direction (L).

A structural health monitoring system comprises a first set of sensors operable for coupling to a structure positioned under ground, the first set of sensors further configured to detect an impact upon the structure while the first set of sensors is positioned under the ground; a second set of sensors operable to be positioned on or proximate to a surface of the ground, the second set of sensors further configured to detect an audible event occurring at a distance from the second set of sensors and the structure; and a computer readable memory storing one or more audio signatures that may correspond to the audible event.

A state estimation apparatus 1 includes an acquisition unit 2 that acquires deterioration information indicating a deterioration state of each structural object and a learning unit 3 that learns common information that is common between pieces of the deterioration information and estimation index information that is used for estimating a deterioration state of a target structural object, using the deterioration information as input.

Disclosed herein is a method for monitoring a health status of one or of a plurality of bridges (10) under normal traffic condition. The method comprises: a) providing at least one sensing device (12) per bridge configured to measure a physical quantity variation related to the integrity of said one or said plurality of bridges; b) providing a fleet of heavy vehicles (14), wherein an estimation of the weight of each heavy vehicle is known with a deviation of no more than 10% of the actual weight of each heavy vehicle; c) acquiring a set of physical data related to the integrity of said one or said plurality of bridges (10) from said at least one sensing device (12) when at least one heavy vehicle of the fleet crosses one bridge (10); d) determining the configuration of other vehicles (15a, 15b, 15c, 15d, 15e) on the bridge, if any, when said at least one heavy vehicle (14) crosses said one bridge; e) repeating steps c) and d) in order to acquire multiple sets of physical data related to the integrity of said one or said plurality of bridges (10) so that the number of sets of integrity data associated with one bridge (10) permits to measure or observe a deviation, and c) obtaining a health status of said one or said plurality of bridges based on the deviation between said multiple sets of physical data associated with one bridge.

Example systems are described for remotely interacting with a portable field measurement device. Systems can include a controller that can: couple to a mobile device; receive user input from a user through the mobile device; cause the portable field measurement device to execute the operations directed by the user; electronically record data output from the portable field measurement device resulting from the directed operations; and report the data to the user via the mobile device, and/or to a remote electronic database. In some embodiments, a robotic arm can be used to actuate the portable field measurement device.

Example systems are described for remotely interacting with a portable field measurement device. Systems can include a controller that can: couple to a mobile device; receive user input from a user through the mobile device; cause the portable field measurement device to execute the operations directed by the user; electronically record data output from the portable field measurement device resulting from the directed operations; and report the data to the user via the mobile device, and/or to a remote electronic database. In some embodiments, a robotic arm can be used to actuate the portable field measurement device.

A battery-powered sensing apparatus adapted for embedding in concrete comprises a housing having a base portion and a removable lid, the housing providing a scaled enclosure, and at least one sensor for monitoring one or more environmental conditions for the concrete. The sensing apparatus further comprises a control module; a wireless communication module; and a battery. The control module, wireless communication module and battery are mounted on the lid so as to be located within the sealed enclosure as internal components, and so as to be removable with the lid after the sensing apparatus has been embedded in concrete.

Example systems are described for remotely interacting with a portable field measurement device. Systems can include a controller that can: couple to a mobile device; receive user input from a user through the mobile device; cause the portable field measurement device to execute the operations directed by the user; electronically record data output from the portable field measurement device resulting from the directed operations; and report the data to the user via the mobile device, and/or to a remote electronic database. In some embodiments, a robotic arm can be used to actuate the portable field measurement device.

Example systems are described for remotely interacting with a portable field measurement device. Systems can include a controller that can: couple to a mobile device; receive user input from a user through the mobile device; cause the portable field measurement device to execute the operations directed by the user; electronically record data output from the portable field measurement device resulting from the directed operations; and report the data to the user via the mobile device, and/or to a remote electronic database. In some embodiments, a robotic arm can be used to actuate the portable field measurement device.