Abstract: 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.

Abstract: 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.

Abstract: 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 (1) wherein each wheel assembly (1) further comprising: one or more transducers (20) arranged partially or completely embedded in a coupling medium/partial or complete inner ring (52, 21), the wheel assembly is further comprising an orbital outer ring (23), and wherein the coupling medium/partial or complete inner ring (52, 21) is connected to an axle (22) in anon-rotating manner and the one or more transducers (20) are fixedly pointing towards the test material (15), and the interface between the inward facing surface (26) of the orbital outer ring (23) and/or the outward facing surface (25) of the coupling medium/partial or complete inner ring (52, 21) comprises a low friction material having an acoustic impedance in the same order as that of the orbital outer ring (23).

Abstract: 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 (1) where the wheel (1) comprises an array of transducers (20) arranged on a base (3) attached to an axis (2) and a tire section (10) providing a sealed enclosure (7) around the array of transducers (20) where the tire section comprises a plurality of circular protruding sections (12) comprising a tire tread section (11, 22, 24, 25), and a coupling fluid (26) in the sealed enclosure (7) providing an acoustic transparency between the array of transducers and contact points (27) for the tire tread section (11, 24) towards a test material (15).

Abstract: 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 (1) wherein each wheel assembly (1) further comprising: one or more transducers (20) arranged partially or completely embedded in a coupling medium/partial or complete inner ring (52, 21), the wheel assembly is further comprising an orbital outer ring (23), and wherein the coupling medium/partial or complete inner ring (52, 21) is connected to an axle (22) in anon-rotating manner and the one or more transducers (20) are fixedly pointing towards the test material (15), and the interface between the inward facing surface (26) of the orbital outer ring (23) and/or the outward facing surface (25) of the coupling medium/partial or complete inner ring (52, 21) comprises a low friction material having an acoustic impedance in the same order as that of the orbital outer ring (23).

Abstract: 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 (1) where the wheel (1) comprises an array of transducers (20) arranged on a base (3) attached to an axis (2) and a tire section (10) providing a sealed enclosure (7) around the array of transducers (20) where the tire section comprises a plurality of circular protruding sections (12) comprising a tire tread section (11, 22, 24, 25), and a coupling fluid (26) in the sealed enclosure (7) providing an acoustic transparency between the array of transducers and contact points (27) for the tire tread section (11, 24) towards a test material (15).

Abstract: There is provided an apparatus and method for reading matrix codes comprising an ultrasound transducer 20 which comprises transmitter and receiver electrodes, a receiver unit 24 connected to the receiver electrodes for processing the signals received by the receiver electrodes, and a transmitter module 21 connected 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.

Abstract: There is provided an apparatus and method for reading matrix codes comprising an ultrasound transducer 20 which comprises transmitter and receiver electrodes, a receiver unit 24 connected to the receiver electrodes for processing the signals received by the receiver electrodes, and a transmitter module 21 connected 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.

Abstract: There is provided an apparatus and method for reading matrix codes comprising an ultrasound transducer 20 which comprises transmitter and receiver electrodes, a receiver unit 24 connected to the receiver electrodes for processing the signals received by the receiver electrodes, and a transmitter module 21 connected 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.

Abstract: There is provided an apparatus and method for reading matrix codes comprising an ultrasound transducer 20 which comprises transmitter and receiver electrodes, a receiver unit 24 connected to the receiver electrodes for processing the signals received by the receiver electrodes, and a transmitter module 21 connected 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.

Abstract: There is provided an apparatus and method for reading matrix codes comprising an ultrasound transducer 20 which comprises transmitter and receiver electrodes, a receiver unit 24 connected to the receiver electrodes for processing the signals received by the receiver electrodes, and a transmitter module 21 connected 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.

Abstract: Ultrasonic transducer module comprises at least one transmitter layer, at least one receiver layer and at least one ground plane. The transmitter layer and the receiver layer comprise a number of elongated transmitter and receiver electrodes, the electrodes being arranged in parallel within each layer, the transmitter layers and the receiver layers are parallel, and the electrodes of the receiver layers make an angle greater than zero with the electrodes of at least one of the transmitter.

Abstract: A device for coding an object where the codes themselves are in the foam of milled holes/indentation, and a method for reading the codes where the object with a code is placed under an ultrasound sender and receiver respectively. The holes/indentations (3′) are provided in the object itself or on a material which is attached to the object, as the holes/indentations (3′) are facing away from the object, and the holes/indentations (3′) are covered by or filled with a material respectively. This material may be a thin film (2′) in the size range of 0,1-3 mm or made by a surface treatment in the form of varnish/paint, plastic, laminate, wood or metal. The code may be devised in a material, i.e. thin film being attached to the object and covered and thus hidden. The codes may be made by milling or stamping on the material of the object or on the material attached to the object.