An ultrasonic probe device includes a sealed housing, a spiral-track plate, a driving arm, an ultrasonic probe and a first shaft. The spiral-track plate, disposed inside the sealed housing, includes a pivotal hole and a spiral groove, in which the spiral groove is extended outward from a center of the spiral-track plate. The driving arm, adjacent to the spiral-track plate, includes a first slot and a rotational shaft hole. The ultrasonic probe includes a follower pillar, a detection side and a connection side opposing to the detection side. The follower pillar, connected with the connection side, penetrates through the first slot and enters the spiral groove. The spiral groove provides a planar motion track to the detection side of the ultrasonic probe. The first shaft orderly penetrates through the sealed housing, the pivotal hole of the spiral-track plate, and the rotational shaft hole of the driving arm.

A dual frequency ultrasound transducer includes a high frequency ultrasound array and a low frequency transducer positioned behind or proximal to the high frequency ultrasound array. In one embodiment, a dampening material is positioned between a rear surface of the high frequency array and the a front surface of the low frequency array. The dampening preferably is high absorbing of signals at the frequency of the high frequency array but passes signals at the frequency of the low frequency transducer with little attenuation. In additional, or alternatively, the low frequency can angled with respect to the plane of the high frequency transducer to reduce inter-stack multipath reflections. Beamforming delays compensate for the differences in physical distances between the elements of the low frequency transducer and the plane of the high frequency transducer.

The present invention is directed to a mounting device for a fish finding apparatus and, more particularly, to a motorized mounting device which includes an adjustable length pole used to mount a sonar transducer or other device an angler may be interested in mounting to the end of the pole that enters the water. The pole is used to spin the transducer or other apparatus in a clockwise and counterclockwise direction with a switch that is adapted to be operated by the angler's foot or a wireless remote. The mounting device is configured to be secured to a boat or mounted on a boat troll motor whereby the adjustable pole is secured and spins independent of the troll motor shaft.

This speaker system includes: a speaker device that is disposed outside a region of a projection surface on which a display surface of a display is projected, the speaker device functioning as a real sound source; and a reflector that has a reflection surface reflecting a sound output from the speaker device, the reflector localizing a sound image of a virtual sound source within the region of the projection surface. The reflector has an elliptical reflection surface in at least a part of the reflection surface. With this configuration, the sound output from the speaker device disposed outside the region of the projection surface is reflected on the reflector, and a sound image thereof is localized within the region of the projection surface, whereby it is possible to bring a display position of a video into alignment with an output position of the sound. Thus, a comfortable viewing state can be ensured for a viewer.

Disclosed is an ultrasound array comprising a plurality of ultrasound transducer elements (20) on a carrier (10), said carrier further carrying an actuator arrangement (30, 30) of a material having an adjustable shape in response to an electromagnetic stimulus, e.g. an electro active polymer or optically responsive polymer, wherein the material is arranged to change the orientation of said ultrasound transducer elements in response to said stimulus. This facilitates configurable beam shaping and/or body contour matching with the ultrasound array. An ultrasound system (100) comprising such an ultrasound array is also disclosed.

An inspection tool for inspection of a hole of a metallic lug, including, a first arm, a second arm, a third arm, and a housing element, wherein the first arm, the third arm and the housing element may vary their position independently of each other in relation to the second arm. Also, the present invention discloses an inspection device for inspection of a metallic lug that comprises an inspection tool and a probe housed in the housing element, and a method for detecting cracks around metallic lug.

An intravascular ultrasound probe is disclosed, incorporating features for utilizing an advanced transducer technology on a rotating transducer shaft. In particular, the probe accommodates the transmission of the multitude of signals across the boundary between the rotary and stationary components of the probe required to support an advanced transducer technology. These advanced transducer technologies offer the potential for increased bandwidth, improved beam profiles, better signal to noise ratio, reduced manufacturing costs, advanced tissue characterization algorithms, and other desirable features. Furthermore, the inclusion of electronic components on the spinning side of the probe can be highly advantageous in terms of preserving maximum signal to noise ratio and signal fidelity, along with other performance benefits.

A tension transmission device as a control system for a probing portion of a three-dimensional mechanical probe is fitted to a support portion. The tension transmission device includes a driving shaft, a first tension member, and a second tension member. The driving shaft defines first and second fastening points. The first fastening point and the second fastening point are located at axially-distanced points of the driving shaft which are not diametrically opposite. The first and second tension members wind around a circumference of the driving shaft guided by a first pulley and a second pulley, to rotate and manipulate the driven shaft of the probing portion.

A tension transmission device as a control system for a probing portion of a three-dimensional mechanical probe is fitted to a support portion. The tension transmission device includes a driving shaft, a first tension member, and a second tension member. The driving shaft defines first and second fastening points. The first fastening point and the second fastening point are located at axially-distanced points of the driving shaft which are not diametrically opposite. The first and second tension members wind around a circumference of the driving shaft guided by a first pulley and a second pulley, to rotate and manipulate the driven shaft of the probing portion.

An intravascular ultrasound probe is disclosed, incorporating features for utilizing an advanced transducer technology on a rotating transducer shaft. In particular, the probe accommodates the transmission of the multitude of signals across the boundary between the rotary and stationary components of the probe required to support an advanced transducer technology. These advanced transducer technologies offer the potential for increased bandwidth, improved beam profiles, better signal to noise ratio, reduced manufacturing costs, advanced tissue characterization algorithms, and other desirable features. Furthermore, the inclusion of electronic components on the spinning side of the probe can be highly advantageous in terms of preserving maximum signal to noise ratio and signal fidelity, along with other performance benefits.