An approach to determining the crash dynamic behavior of structural castings made of a AlSi10MnMg alloy in a simple and cost-effective manner is provided. In this approach eddy current testing is carried out using a high-resolution measuring coil which is adjusted to the cast-specific conductivity.

A process for analyzing a fracture or crack surface of a TiAl turbomachine part is provided. The process includes: marking on the surface the position and the orientation of cleavage facets, so as to identify a region of fracture or crack initiation and to determine the direction of propagation of this fracture or crack; examining the surface and detecting the regions with the presence of equiaxed grains and/or lamellar grains, so as to evaluate the temperature at which the fracture or crack has taken place, and comparing the heat tintings of the surface with those of samples from a heat tinting color chart so as to evaluate the speed of propagation of the fracture or crack.

A fluorescent liquid penetrant is provided which includes a liquid medium having a plurality of fluorophores disposed therein. Upon excitation with a suitable light source, the penetrant exhibits a quantum yield greater than 40% (or in some embodiments, greater than 90%). In some embodiments, the fluorophore is a low-toxicity quantum dot. In some embodiments, the fluorophore has significantly reduced self-absorption, which allows for surface discontinuity depth measurement. Also disclosed are apparatuses for using these fluorescent liquid penetrants for non-destructive testing purposes. In some embodiments, these tests include measuring the depth of a discontinuity by analyzing photoluminescence intensity and/or photoluminescence peak position shift.

A method of non-destructive detection of surface and near surface abnormalities in a metallic product. The method comprises positioning a sample having a surface under a source of an incident radiation. The surface of the sample is then irradiated with the incident radiation from the source. A scattered radiation is detected and a radiation pattern from the detected scattered radiation is produced. Said radiation pattern is then analysed and the output indicative of the scattered radiation from the sample is produced. Said produced output is then compared with a threshold value, the threshold value indicative of a maximum acceptable detected surface abnormality. Finally, the presence of a surface abnormality is identified when the output exceeds the threshold value.

A steel deck bridge evaluation device is provided to enable quantitative evaluation of damage to or deterioration within a steel deck bridge.

A steel deck bridge evaluation device includes a processor, the processor is configured to acquire reflected response data relating to a reflected response to an electromagnetic wave irradiated through a surface a deck in a depth direction of the deck, remove a first frequency component obtained by reflection of the electromagnetic wave at a surface of the deck and a second frequency component obtained by reflection of the electromagnetic wave at a steel deck from a reflected response frequency distribution of the reflected response expressing the reflected response data, and evaluate damage to or deterioration of the deck using a peak measurement value that is a peak value of a frequency component level corresponding to a specific frequency or higher, in the reflected response frequency distribution from which the first frequency component and the second frequency component have been removed.

A steel deck bridge evaluation device is provided to enable quantitative evaluation of damage to or deterioration within a steel deck bridge.

A steel deck bridge evaluation device includes a processor, the processor is configured to acquire reflected response data relating to a reflected response to an electromagnetic wave irradiated through a surface a deck in a depth direction of the deck, remove a first frequency component obtained by reflection of the electromagnetic wave at a surface of the deck and a second frequency component obtained by reflection of the electromagnetic wave at a steel deck from a reflected response frequency distribution of the reflected response expressing the reflected response data, and evaluate damage to or deterioration of the deck using a peak measurement value that is a peak value of a frequency component level corresponding to a specific frequency or higher, in the reflected response frequency distribution from which the first frequency component and the second frequency component have been removed.

According to one embodiment of the invention, a magnetic sensor includes a first sensor part. The first sensor part includes a first magnetic member, a first counter magnetic member, and a first magnetic element. A direction from the first magnetic member to the first counter magnetic member is along a first direction. The first magnetic element includes one or a plurality of first extending portions. A first portion of the first extending portion overlaps the first magnetic member in a second direction crossing the first direction. A first counter portion of the first extending portion overlaps the first counter magnetic member in the second direction. A first direction length along the first direction of the first extending portion is longer than a third direction length along a third direction of the first extending portion. The third direction crosses a plane including the first direction and the second direction.

According to one embodiment of the invention, a magnetic sensor includes a first sensor part. The first sensor part includes a first magnetic member, a first counter magnetic member, and a first magnetic element. A direction from the first magnetic member to the first counter magnetic member is along a first direction. The first magnetic element includes one or a plurality of first extending portions. A first portion of the first extending portion overlaps the first magnetic member in a second direction crossing the first direction. A first counter portion of the first extending portion overlaps the first counter magnetic member in the second direction. A first direction length along the first direction of the first extending portion is longer than a third direction length along a third direction of the first extending portion. The third direction crosses a plane including the first direction and the second direction.

In an anti-biofouling context, an anti-biofouling system (20) is provided, which is configured to emit anti-biofouling light in an activated state thereof and to be applied to an object (10). Further, the anti-biofouling system (20) comprises a sensor system (30) that is configured to obtain measurement data relating to at least one structural feature of an anti-biofouling arrangement (1) including both the anti-biofouling system (20) and the object (10) in an actual case of the anti-biofouling system (20) being in place on the object (10). By having the sensor system (30) as mentioned in the anti-biofouling system (20), it is achieved that one or more structural aspects of the anti-biofouling arrangement (1) may be checked/monitored without a need for providing separate means for fulfilling such functionality.

In an anti-biofouling context, an anti-biofouling system (20) is provided, which is configured to emit anti-biofouling light in an activated state thereof and to be applied to an object (10). Further, the anti-biofouling system (20) comprises a sensor system (30) that is configured to obtain measurement data relating to at least one structural feature of an anti-biofouling arrangement (1) including both the anti-biofouling system (20) and the object (10) in an actual case of the anti-biofouling system (20) being in place on the object (10). By having the sensor system (30) as mentioned in the anti-biofouling system (20), it is achieved that one or more structural aspects of the anti-biofouling arrangement (1) may be checked/monitored without a need for providing separate means for fulfilling such functionality.