摘要:
A composite structure of a backing material with enhanced conductivity for use in a transducer is presented. The composite structure includes a plurality of layers of backing material alternatingly arranged with a plurality of thermal conductive elements, wherein the plurality of thermal conductive elements are configured to transfer heat from a center of the transducer to a plurality of points on the composite structure of backing material.
摘要:
A composite structure of a backing material with enhanced conductivity for use in a transducer is presented. The composite structure includes a plurality of layers of backing material alternatingly arranged with a plurality of thermal conductive elements, wherein the plurality of thermal conductive elements are configured to transfer heat from a center of the transducer to a plurality of points on the composite structure of backing material.
摘要:
An interconnect assembly is presented. The assembly includes an interconnect structure including a plurality of interconnect layers disposed in a spaced relationship, where each of the plurality of interconnect layers comprises a plurality of conductive traces disposed thereon. Furthermore, the assembly includes a redistribution layer disposed proximate the interconnect structure, where the redistribution layer is configured to facilitate coupling the interconnect structure to the one or more transducer elements on the transducer array.
摘要:
Various embodiments of an ultrasound probe for use with an ultrasound system are provided to enable local waveform generation with respect to the ultrasound probe. The ultrasound probe includes a plurality of transducer elements which are independently configured to transmit distinct waveforms. Certain embodiments include a variety of probes that house one or more waveform generators on application specific integrated circuits (ASICs).
摘要:
A probe having a plurality of transducers also has a plurality of pulsers within the probe that are responsive to one or more transmit timing signals received from an external system to transmit pulses to the plurality of transducers. The external system may be, but need not be, an imaging system, and the transducers may be, but need not be, ultrasound transducers.
摘要:
A transmission circuit for use with an ultrasonic probe including an ultrasonic transducer is provided. The transmission circuit includes a high voltage current DAC configured to output a drive current of an ultrasonic transducer to transmit and receive ultrasound, and a waveform generator configured to output a control signal from the high voltage current DAC to the high voltage current DAC with a predetermined timing. The control signal configured to output the drive current with a desired magnitude.
摘要:
An ultrasound system includes an ultrasound probe configured for sensing and transmitting ultrasound signals. The ultrasound system further includes an optical conduit configured for coupling a light source and an optical detector in an optical path. The optical conduit includes electro-optic modulators configured for modulating optical signals on the optical conduit with at least one of the electrical signals configured to generate corresponding optically modulated analog signals on the optical conduit. In one example, the electro-optic modulators comprise electro-optic polymer modulators.
摘要:
Device (1) for use in a roll frame (10) for the manufacture of a plastics film, having a continuous band (2), looped around at least two deflection rolls (3, 3′), for pressing the plastics film against a roll (9) of the roll frame (10), the two deflection rolls (3) being rotatably mounted on both sides in lateral bearing devices (5, 5′) and fastening means are provided for fixing the deflection rolls (3, 3′) in a bearing device (5) and the other bearing device (5′) is pivotably mounted for the exchange of the continuous band (2); and a process for changing a continuous band (2) for pressing a plastics film against a roll (9) and for cooling the same, which is looped at least around two deflection rolls (3) rotatably mounted in lateral bearing devices (5, 5′), the deflection rolls (3, 3′) being fixed in a bearing device (5). Fastening means of the other bearing device (5′) are released and the other bearing device (5′) is pivoted.
摘要:
For the production of a tubular woven fabric having a floats-including weave, by using a circular loom, at least two shuttles are moved through sheds formed by warp threads. The warp threads are guided through thread eyes of thread guiding organs and are lifted and lowered by the thread guiding organs to form the shed. In order to be able to produce tubular woven fabrics of different types of floats-including weaves, free warp threads, i.e., warp threads that are loosely guided through between thread guiding organs carrying neighboring warp threads, additionally run between warp threads guided by the thread guiding organs. These loose warp threads cross the opened shed approximately in the middle thereof and are lifted by a guide means arranged on at least one shuttle and, as the method proceeds, are lowered by a guide means arranged on at least one shuttle.
摘要:
An ultrasonic transducer driving circuit configured to supply an output current and/or an output voltage to an output line for driving an ultrasonic transducer is provided. The ultrasonic transducer driving circuit includes a first current discharge circuit configured to allow a current arising from electric charges accumulated in the ultrasonic transducer to flow from the output line to ground when the output line is at a positive voltage, and a second current discharge circuit configured to allow the current arising from the electric charges accumulated in the ultrasonic transducer to flow from ground to the output line when the output line is at a negative voltage. The first current discharge circuit and the second current discharge circuit are controlled based on the output current and/or the output voltage.