Elop As

Universitetet I TromsØ—norges Arktiske Universitet

Dolphitech As

Elop Technology As

Dolphiscan As

Frank Melandsø

Terje Melandsø

Sanat Wagle

Werner Bjerke

Kamal Raj Chapagain

Anowarul Habib

Eskil Skoglund

Tore Baarstad

Arnt-Børre Salberg

The present disclosure relates to a device for emission and reception of ultrasonic signal to and from a surface under survey, the device includes a stationary shaft part; and two or more wheel assemblies attachable to a stationary shaft part. Each wheel assembly includes an orbital inner ring, an orbital outer ring, and one or more transducers mounted on the outward facing surface of the orbital inner ring protruding radially from the orbital inner ring. The orbital outer ring being arranged radially outside the transducer modules with the orbital inner ring and is rotating together when the wheel assembly is rolled along a surface to be surveyed.

Device, system and method for emission and reception of ultrasonic signals to and from a test material

A film comprising a piezoelectric polymer has an upper surface and a lower surface. The film has an active region comprising the piezoelectric polymer, which extends from the upper surface of the film to the lower surface of the film. The film also comprises an adhesive sheet, which defines part of the upper or lower surface of the film. Circuit sheets may be bonded to the upper and lower surfaces in a lamination process to produce a laminated piezoelectric device.

Film with piezoelectric polymer region

Device, system and method for emission and reception of ultrasonic signal to and from a test material, wherein the device comprising one or more wheel assemblies () wherein each wheel assembly () further comprising: one or more transducers () arranged partially or completely embedded in a coupling medium/partial or complete inner ring (), the wheel assembly is further comprising an orbital outer ring (), and wherein the coupling medium/partial or complete inner ring () is connected to an axle () in anon-rotating manner and the one or more transducers () are fixedly pointing towards the test material (), and the interface between the inward facing surface () of the orbital outer ring () and/or the outward facing surface () of the coupling medium/partial or complete inner ring () comprises a low friction material having an acoustic impedance in the same order as that of the orbital outer ring ().

A film () comprising a piezoelectric polymer () has an upper surface and a lower surface. The film has an active region comprising the piezoelectric polymer (), which extends from the upper surface of the film to the lower surface of the film. The film also comprises an adhesive sheet (), which defines part of the upper or lower surface of the film. Circuit sheets () may be bonded to the upper and lower surfaces in a lamination process to produce a laminated piezoelectric device.

Method, system, and device for ultrasonic signal emission and reception of reflected ultrasonic signal enabling non-destructive analysis of solid material such as in roads, bridges, and other constructions. The device being formed as a wheel () where the wheel () comprises an array of transducers () arranged on a base () attached to an axis () and a tire section () providing a sealed enclosure () around the array of transducers () where the tire section comprises a plurality of circular protruding sections () comprising a tire tread section (), and a coupling fluid () in the sealed enclosure () providing an acoustic transparency between the array of transducers and contact points () for the tire tread section () towards a test material ().

Device, method and system for an ultrasonic signal transducer array arranged in a wheel for monitoring the condition of an article

There is provided an apparatus and method for reading matrix codes comprising an ultrasound transducerwhich comprises transmitter and receiver electrodes, a receiver unitconnected to the receiver electrodes for processing the signals received by the receiver electrodes, and a transmitter moduleconnected to the transmitter electrodes, the transmitter module transferring an electronic signal to the transducer, where the signal shape is selected between a number of signal shapes according to the characteristics of the matrix code to be read.

Growing community of inventors

Kvaløysletta, Norway

Frank Melandsø