A method for detecting deposits in a pipe system of an apparatus is proposed, the apparatus being flowed through by a fluid. In the method it is provided that at least one microwave probe is introduced into the pipe system in such a way that the fluid flows against a window (102) of the microwave probe that is transparent to microwave radiation, and that microwaves are coupled into the pipe system by way of at least one microwave probe, wherein a reflection measurement is carried out with one or two microwave probes, and/or at least two microwave probes are introduced into the pipe system at a distance from one another and a transmission measurement is carried out, wherein a comparison of measurement data with a reference or a previous measurement is used to deduce a constriction in the pipe system segment and the free cross-section at the constriction is determined, the detection of a constriction being used to deduce the presence of deposits. Further aspects of the invention relate to a microwave probe for coupling microwave radiation into the pipe system of an apparatus and to a measuring device for carrying out the method that comprises at least one such microwave probe.

A method for detecting deposits in a pipe system of an apparatus is proposed, the apparatus being flowed through by a fluid. In the method it is provided that at least one microwave probe is introduced into the pipe system in such a way that the fluid flows against a window (102) of the microwave probe that is transparent to microwave radiation, and that microwaves are coupled into the pipe system by way of at least one microwave probe, wherein a reflection measurement is carried out with one or two microwave probes, and/or at least two microwave probes are introduced into the pipe system at a distance from one another and a transmission measurement is carried out, wherein a comparison of measurement data with a reference or a previous measurement is used to deduce a constriction in the pipe system segment and the free cross-section at the constriction is determined, the detection of a constriction being used to deduce the presence of deposits. Further aspects of the invention relate to a microwave probe for coupling microwave radiation into the pipe system of an apparatus and to a measuring device for carrying out the method that comprises at least one such microwave probe.

A test system for detecting corrosion under a coating on a structure, the coating being transmissive to microwaves and the surface being reflective to microwaves. A microwave generator generates microwaves of a desired power and frequency, which are delivered to a test head that both transmits the microwaves to the surface and receives the microwaves as reflected from the structure. A corrosion detection processor measures the phase and amplitude of the reflected signal, and compares measurement data to reference data to determine if corrosion under the coating is indicated.

A test system for detecting corrosion under a coating on a structure, the coating being transmissive to microwaves and the surface being reflective to microwaves. A microwave generator generates microwaves of a desired power and frequency, which are delivered to a test head that both transmits the microwaves to the surface and receives the microwaves as reflected from the structure. A corrosion detection processor measures the phase and amplitude of the reflected signal, and compares measurement data to reference data to determine if corrosion under the coating is indicated.

A method of extracting complex impedance from selected volumes of the material under test (MUT) combined with various embodiments of electrode sensor arrays. Configurations of linear and planar electrode arrays provide measured data of complex impedance of selected volumes, or voxels, of the MUT, which then can be used to extract the impedance of selected sub-volumes or sub-voxels of the MUT through application of circuit theory. The complex impedance characteristics of the sub-voxels may be used to identify variations in the properties of the various sub-voxels of the MUT, or be correlated to physical properties of the MUT using electromagnetic impedance tomography and/or spectroscopy.

The present invention relates to a method for contactless determination of at least one property of an at least partially melted quasi-endless strand during a casting process of the quasi-endless strand, which cools down within a cooling zone, allowing successive hardening of the quasi-endless strand, comprising at least the following steps: Emitting a first signal, in particular a first radar signal, in the form of radiation by an emission device, in particular a radar emission device, Generating a second signal, in particular a second radar signal, at least partly by an interaction of the first signal with a region of the quasi-endless strand, receiving the second signal by a reception device, in particular by a reception device for radar signals, determining at least one property of the quasi-endless strand on the basis of the second signal, wherein at least the step of interacting takes place within the cooling zone or upstream of the cooling zone (K), in particular immediately after exit from a mold. The present invention further relates to a device for casting a material, in particular a metal, into a quasi-endless strand in the context of a continuous casting process and for contactless determination of at least one property of the at least partially molten quasi-endless strand during casting of the quasi-endless strand, comprising a mold adapted to form said quasi-endless strand, a cooling zone in which said quasi-endless strand cools down, whereby successive hardening of said quasi-endless strand is enabled, an emission device, in particular a radar transmitter, adapted to emit emitting a first signal in the form of radiation, in particular as a first radar signal, a reception device, in particular a radar receiver, which is arranged to receive a second signal, in particular a second radar signal, whereby the second signal being generated at least partially by interaction of the first signal with a region of the quasi-endless strand within in the cooling zone or upstream of the cooling zone (K), in particular immediately after exit from a mold, a data processing unit arranged to determine at least one property of the quasi-endless strand on the basis of the second signal. According to the invention, a corresponding use is also provided.

The present invention relates to a method for contactless determination of at least one property of an at least partially melted quasi-endless strand during a casting process of the quasi-endless strand, which cools down within a cooling zone, allowing successive hardening of the quasi-endless strand, comprising at least the following steps: Emitting a first signal, in particular a first radar signal, in the form of radiation by an emission device, in particular a radar emission device, Generating a second signal, in particular a second radar signal, at least partly by an interaction of the first signal with a region of the quasi-endless strand, receiving the second signal by a reception device, in particular by a reception device for radar signals, determining at least one property of the quasi-endless strand on the basis of the second signal, wherein at least the step of interacting takes place within the cooling zone or upstream of the cooling zone (K), in particular immediately after exit from a mold. The present invention further relates to a device for casting a material, in particular a metal, into a quasi-endless strand in the context of a continuous casting process and for contactless determination of at least one property of the at least partially molten quasi-endless strand during casting of the quasi-endless strand, comprising a mold adapted to form said quasi-endless strand, a cooling zone in which said quasi-endless strand cools down, whereby successive hardening of said quasi-endless strand is enabled, an emission device, in particular a radar transmitter, adapted to emit emitting a first signal in the form of radiation, in particular as a first radar signal, a reception device, in particular a radar receiver, which is arranged to receive a second signal, in particular a second radar signal, whereby the second signal being generated at least partially by interaction of the first signal with a region of the quasi-endless strand within in the cooling zone or upstream of the cooling zone (K), in particular immediately after exit from a mold, a data processing unit arranged to determine at least one property of the quasi-endless strand on the basis of the second signal. According to the invention, a corresponding use is also provided.

The present invention relates to a device for detecting foreign bodies and/or material inhomogeneities and/or on or in a production piece within a material flow of a biodegradable product or a material contaminated by a substance, at least one radiation transmitter which emits electromagnetic radiation, preferably in the microwave range, as well as at least one radiation receiver for receiving at least a part of the electromagnetic radiation emitted by the radiation transmitter, as well as at least one detection module which converts the electromagnetic radiation impinging on the radiation receiver into image data, wherein the image data are generated by an evaluation of amplitude, phase and/or frequency of the impinging electromagnetic radiation, wherein the image data can be transmitted to a transmission element in a clocked or variably requested manner. the image data being generated by an evaluation of the amplitude, phase and/or frequency of the incident electromagnetic radiation, the image data being capable of being transmitted to a transmission element in a timed or variably requested manner, the transmission element indicating in a graphic, haptic, numeric and/or acoustic manner the foreign bodies and/or the material inhomogeneities and/or on or in a production piece and/or identifying such, preferably fully automatically, and/or authorising or itself triggering appropriate measures of the respective application case.

Embodiments described herein utilize Non-Destructive Inspection (NDI) scan data obtained during a process performed on a surface of a structure to update a location of an NDI scanner on the surface. A subsurface feature within the structure is detected based on the NDI scan data, which are correlated with pre-defined position data for the subsurface feature. A measured location of the NDI scanner on the surface is corrected based on the pre-defined position data for the subsurface feature.

In a computer-implemented method and system for capturing the condition of a structure, the structure is scanned with an unmanned aerial vehicle (UAV). Data collected by the UAV corresponding to points on a surface of a structure is received and a 3D point cloud is generated for the structure, where the 3D point cloud is generated based at least in part on the received UAV data. A 3D model of the surface of the structure is reconstructed using the 3D point cloud.