摘要:
An ultrasound transducer manufactured by using a micromachining process comprises: a first electrode into which a control signal for transmitting ultrasound is input; a substrate on which the first electrode is formed; a second electrode that is a ground electrode facing the first electrode with a prescribed space between the first and second electrodes; a membrane on which the second electrode is formed and which vibrates and generates the ultrasound when a voltage is applied between the first and second electrodes; a piezoelectric film contacting the membrane; and a third electrode electrically continuous to the piezoelectric film.
摘要:
An ultrasound transducer manufactured by using a micromachining process comprises: a first electrode into which a control signal for transmitting ultrasound is input; a substrate on which the first electrode is formed; a second electrode that is a ground electrode facing the first electrode with a prescribed space between the first and second electrodes; a membrane on which the second electrode is formed and which vibrates and generates the ultrasound when a voltage is applied between the first and second electrodes; a piezoelectric film contacting the membrane; and a third electrode electrically continuous to the piezoelectric film.
摘要:
An ultrasound transducer manufactured by using a micromachining process comprises: a first electrode into which a control signal for transmitting ultrasound is input; a substrate on which the first electrode is formed; a second electrode that is a ground electrode facing the first electrode with a prescribed space between the first and second electrodes; a membrane on which the second electrode is formed and which vibrates and generates the ultrasound when a voltage is applied between the first and second electrodes; a piezoelectric film contacting the membrane; and a third electrode electrically continuous to the piezoelectric film.
摘要:
An ultrasound endoscope has an ultrasound probe which is disposed at a distal end side of a distal end rigid portion configuring a distal end portion out of a flexible tube portion, a bending portion and the distal end rigid portion configuring an insertion portion, and forms an ultrasound scanning surface having a normal line in a direction orthogonal to an endoscope insertion axis L1, and a treatment instrument outlet of a treatment hole in the distal end rigid portion. The ultrasound probe is configured by a plurality of ultrasound transducers arranged in a convex circular arc shape, and a center of curvature of the plurality of ultrasound transducers is disposed at a proximal end side from the treatment instrument outlet.
摘要:
An electronic radial type ultrasonic transducer arraying, in a cylindrical form, a plurality of ultrasonic transducer elements for transmitting and receiving ultrasound, and for storing cables corresponding to the respective ultrasonic transducer elements for transmitting a drive signal for driving each of the ultrasonic transducer elements in the inside of a group of the ultrasonic transducer elements arrayed in the cylindrical form, featuring a conductive film on a surface of an insulator through which the cable group is led, and also comprising an acoustic lens constituted of a lens part which is connected to a ground wire and featured as a convex form and a cover part covering an easily breakable part or conductor material which is electrically connected to a plurality of ultrasonic transducers.
摘要:
An ultrasonic wave oscillator is configured in a manner that an acoustic matching member is formed on the ultrasonic wave emission side of an electromechanical transducer element, a backing material is fixed with adhesive on the other side thereof, and the electromechanical transducer element is fixed by connection members pressing it respectively from opposite directions.
摘要:
An ultrasonic wave oscillator is configured in a manner that an acoustic matching member is formed on the ultrasonic wave emission side of an electromechanical transducer element, a backing material is fixed with adhesive on the other side thereof, and the electromechanical transducer element is fixed by connection members pressing it respectively from opposite directions.
摘要:
It becomes possible to obtain high sound pressure in a high frequency domain by a capacitive ultrasonic transducer which comprises a membrane on which one electrode is formed, a cavity constructed in its backface, and a substrate on which these are mounted and supported and on whose surface an electrode is provided, on a surface in an ultrasonic transmission and reception side, characterized in that the membrane comprises tow or more layers, and at least one layer of them comprises a high dielectric constant film.
摘要:
It becomes possible to obtain high sound pressure in a high frequency domain by a capacitive ultrasonic transducer which comprises a membrane on which one electrode is formed, a cavity constructed in its backface, and a substrate on which these are mounted and supported and on whose surface an electrode is provided, on a surface in an ultrasonic transmission and reception side, characterized in that the membrane comprises tow or more layers, and at least one layer of them comprises a high dielectric constant film.
摘要:
A capacitive micromachined ultrasonic transducer having an ultrasonic wave transmission/reception surface formed by arranging a plurality of transducer cells each of which includes a membrane having a first electrode and a supporting film for supporting the first electrode, and also includes a second electrode arranged being opposite to the first electrode and being spaced apart from the first electrode at a prescribed interval, wherein: the transducer cells are arranged on the basis of resonant frequencies of the transducer cells.