摘要:
In a probe for observing an ultrasonic image, which obtains the ultrasonic image of an object to be observed such as a body cavity by means of an ultrasonic transmitting and receiving means, a mechanical scanning operation of the ultrasonic transmitting and receiving means is performed by an ultrasonic driving means, and thus it is possible to obtain a good diagnosis image with no distortion and no flicker because noises of the driving means can be reduced.Therefore, an ultrasonic endoscope system and an ultrasonic video endoscope system etc. which utilize the probe mentioned above can display a good ultrasonic image and a good optical image.
摘要:
An endoscope, which has an insertion section with a moving part, comprises a stator for generating a surface wave as a combination of a transverse wave and a longitudinal wave; a rotor rotatably disposed facing the stator; an urging mechanism for bringing the rotor intimately into contact with the stator; a coupling member coupled to the rotor and adapted to cause the moving part of the endoscope to operate as the rotor rotates; and a disengaging mechanism for releasing the stator and the rotor from the intimate contact with each other.
摘要:
A scanning tunnel microscope includes a piezo-actuator movable in a direction Z perpendicular to the surface of a sample and provided with a scanning probe projected downward from the bottom thereof. The scanning probe is moved in the direction Z by the piezo-actuator. The piezo-actuator includes a position measuring probe projected therefrom, parallel to the surface of the sample, from the lower end of one side thereof. A reference sample having concaves formed on a surface thereof at predetermined intervals is fixed to the piezo-actuator. When the scanning probe is moved in the direction Z, the position measuring probe is moved along the reference sample, so that tunnel current having a waveform which reproduces the shape of the concaved surface of the reference sample is detected. Thus, the moving distance of the scanning probe can be obtained from the waveform of tunnel current detected.
摘要:
A sensor comprises a tiny cantilever of a thin film having a detection region at its free end portion, a detector for detecting a displacement of the cantilever caused by material acting on the detecting region, and calculation unit for calculating an amount of the material acting on the detection region, based on the displacement of the cantilever which has been detected by the detector, thereby to measure the intensity of a particle-stream applied to the detection region or the thickness of a film formed on the detection region.
摘要:
A solid-state imaging device comprises a semiconductor substrate, a plurality of pixels formed on the semiconductor substrate, an output amplifier circuit for converting a pixel signal generated in each of the pixels to an imaging signal, a plurality of horizontal selecting lines connected to the pixels, a plurality of vertical selecting lines connected to the pixels, and a pixel address circuit for addressing the pixels by applying a read-out signal to the horizontal and vertical selecting lines. The output amplifier circuit includes an output amplifier for converting the pixel signals input from the pixels via the vertical selecting lines, to an imaging signal, and a load resistance reducing circuit for reducing a load resistance of the switching portion in the pixels.
摘要:
A solid-state imaging device comprises a semiconductor substrate, a plurality of pixels formed on the semiconductor substrate and generating imaging signals, and an output amplifier converting a pixel signal generated from the pixel to an imaging signal, and outputting the image signal. The pixel includes a photoelectric converting portion generating a charge in accordance with the amount of received light, a capacitor storing a charge generated from the photoelectric converting portion, and a switching portion for reading out the charge stored in the capacitor as the pixel signal. The capacitor includes a storing region formed on at least one of a part or an adjacent portion of the photoelectric converting portion, a capacitor insulating film formed on the storing region, the capacitor insulating film being made of a high dielectric material having a high relative dielectric constant, and a capacitor electrode formed on the capacitor insulating 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:
First terminal fitting accommodating chambers (61A) are arranged in a width direction in a housing (41) of a connector (40) for receiving first terminal fittings (42). A second terminal fitting accommodating chamber (61B) for receiving a second terminal fitting (42) is adjacent the first terminal fitting accommodating chambers (61A) in a height direction and between the first terminal fitting accommodating chambers (61A) in the width direction. First lances (64A) are in the first terminal fitting accommodating chambers (61A) for engaging the inserted terminal fittings (42) and are deformable into first deformation spaces (65A) lateral to the second terminal fitting accommodating chamber (61B). A second lance (64B) is in the second terminal fitting accommodating chamber (61B) for engaging the second terminal fitting (42) and is deformable into a second deformation space (65B) between the first terminal fitting accommodating chambers (61A).
摘要:
An ultrasonic transducer according to the invention includes a flexible sheet, a rigid body portion including a lower electrode made of at least a thin-film conductive material on a surface of the flexible sheet, a dividing portion which divides the rigid body portion into segments, and a plurality of transducer elements including the divided rigid body portion, has at least one transducer cell composed of one of the segments, an insulating partition portion bonded to the segment, an air gap portion surrounded by the partition portion, an upper electrode opposed to the lower electrode extending to the partition portion to sandwich the air gap portion therebetween, and an upper insulating layer formed on the upper electrode, and includes an upper protection film which continuously covers a surface portion of the transducer elements and the dividing portion.
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.