Housing for electronic communication devices

Sensor for measuring materials

A method (200) of inspecting an aircraft structure, the method comprising: disposing (204) a two-dimensional array (12) of ultrasonic pulse-echo sensors (18) onto a surface (70) of an aircraft structure; sending (206, 208) from each particular sensor (18) an ultrasonic pulse into the surface (70); receiving (210) by each particular sensor (18) an ultrasonic echo signal resulting from the sending of the ultrasonic pulse by the particular sensor (18); graphically displaying (220) an image of damage (120, 124) within the aircraft structure, the image defined by a two-dimensional matrix of pixels each of which corresponds to a particular one of the sensors (18); determining (222) whether the damage satisfies a predetermined criterion, and selecting (222) a mode of returning the aircraft structure to flying service based on the determination of whether the damage satisfies a predetermined criterion.

Ultrasonic inspection and repair mode selection

A nondestructive method of and apparatus for detecting degradation of reinforcing members embedded within a structure is disclosed. Degradation can arise from many sources, such as corrosion, fracture, cracking, fatigue, chemical reaction, etc. The device includes an inducing instrument(210) to induce a vibration of the reinforcing members (110)and a measuring device (220) to detect the vibration of the reinforcing members. The measurement is analyzed to detect the presence of reinforcing member degradation or reinforcing member-to-concrete bonding. The device may include a controller (230) to enhance the detection. The device may also include an amplifier (240) to further increase the energy in the waves imparted to the structure and the acoustic waves detected by the measuring instrument.(220)

Nondestructive detection of reinforcing member degradation

A portable system for non-destructive evaluation of geological material structures comprises an impact device which impacts a spherical surfaced member against the surface of the structure. A vertical displacement transducer and a horizontal displacement transducer detect reflected signals from an interface of the structure, the signals being processed to give a indication of the depth of the interface from the surface of the interface and also provide an evaluation of the physical properties of the structure.

Non-destructive evaluation of geological material structures

The present invention relates to a device for measuring density or determining the presence and the amount of materials of different density in an object (9, 18) to be measured, of a solid, liquid or gaseous material, said device comprising at least one source of radiation (5, 12) for emitting electromagnetic radiation, and at least one sensor (6, 13) for measuring the radiation intensity, so positioned as to absorb radiation from the source of radiation (5, 12) and being connected to a calculation unit (8, 16). In accordance with the invention the device emits radiation of at least two wavelengths and comprises measurement means for determination of the extension of the object (9, 18) between the source of radiation (5, 12) and the sensor (6, 13). In addition, the invention relates to a method of measuring density, comprising radiating electromagnetic rays through an object (9, 18) to be measured and measuring the radiation intensity on the ray-exit side of the object (9, 18) to be measured. In accordance with the method the extension of the object (9, 18) is measured along the path of the radiation through the object to be measured and the radiation is effected at least at two different wavelengths.

Method and device for measuring density

A multi-frequency bond-testing system using acoustic probes in conjunction with NDT/NDI inspection instruments. Bond-testing of test objects is carried out at multiple discrete frequencies to produce a single, combined amplitude C-scan. Alternatively, or in combination, the system provides a single, combined phase C-scan to enable proper interpretation of the C-scans. Amplitude and/or phase readings on test objects are normalized at the selected frequencies relative to tests performed on a defect-free object at those frequencies. In this manner, the non-linear behavior of a bond-testing probe over a frequency range chosen for a given inspection is compensated for. The invention enables providing more easily interpretable and sharper images which enable a more reliable and faster reading and identification of defects in the test objects.

Multi-frequency bond testing

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Sensor for measuring materials

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Housing for electronic communication devices

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Ultrasonic inspection and repair mode selection

Nondestructive detection of reinforcing member degradation

Non-destructive evaluation of geological material structures

Method and device for measuring density

Multi-frequency bond testing

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