Patent application number | Description | Published |
20090209864 | TWO-DIMENSIONAL ARRAY ULTRASONIC PROBE - A two-dimensional array ultrasonic probe is provided with a two-dimensional ultrasonic array and a surface protection layer provided on the array. The two-dimensional ultrasonic array arranges a plurality of piezoelectric vibration elements two-dimensionally. The surface protection layer is made essentially of polybutadiene series rubber. The polybutadiene series rubber is synthesized from 100 parts by weight of polybutadiene and 1 to 5 parts by weight of glycerin. | 08-20-2009 |
20100314300 | STIFFNESS DETECTOR, STIFFNESS DETECTION METHOD, AND PAPER SHEET PROCESSOR INCLUDING STIFFNESS DETECTOR - A stiffness detector transmits acoustic waves to a paper sheet at a predetermined angle to excite Lamb waves. The stiffness detector receives leaky waves of the Lamb waves propagated through the paper sheet at different angles with respect to the paper sheet by a plurality of reception sensors. The stiffness detector is configured to specify a maximum leak angle at which a leak amount of the acoustic waves from the paper sheet becomes maximum based on outputs from the plurality of reception sensors in the reception module and to judge a degree of fatigue of the paper sheet based on the specified maximum leak angle. | 12-16-2010 |
20110001285 | STIFFNESS DETECTOR, STIFFNESS DETECTION METHOD, AND PAPER SHEET PROCESSOR INCLUDING STIFFNESS DETECTOR - A stiffness detector includes a bending portion configured to bend a paper sheet to be carried. The stiffness detector transmits acoustic waves to an incidence point on an inner surface of the paper sheet which is bent by the bending portion and is carried, thereby exciting Lamb waves. The stiffness detector receives leaky waves of the Lamb waves emitted from a detection point on the inner surface of the paper sheet. The stiffness detector specifies a maximum crest value based on the received signals, and judges whether the paper sheet is an unimpaired sheet based on the specified maximum crest value. | 01-06-2011 |
20110108469 | LIMPNESS DETECTING DEVICE, LIMPNESS DETECTING METHOD, AND SHEET HANDLING APPARATUS INCLUDING LIMPNESS DETECTING DEVICE - According to one embodiment, a limpness detecting device includes a transmitting unit to irradiate an acoustic wave towards a conveyed sheet to excite a Lamb wave, a first receiving unit to detect a leaky wave of the Lamb wave emitted from a front surface of the sheet, a second receiving unit to detect a leaky wave of the Lamb wave emitted from a back surface of the sheet, a comparison data calculating unit to calculate comparison data based on the signal detected by the first receiving unit and the signal detected by the second receiving unit, and an intactness judgment unit to compare the comparison data calculated by the comparison data calculating unit with a preset standard value and judge whether the sheet is an intact bill or not, based on a result of the comparison. | 05-12-2011 |
20110226061 | SHEET PROCESSING DEVICE - According to one embodiment, there is provided with sheet processing device including an ultrasonic wave generator, a detecting array and a judging unit. The ultrasonic wave generator irradiates ultrasonic waves to a sheet being conveyed, from one side of the sheet. The detecting array is arranged in the other side of the sheet and detects sound pressure of the ultrasonic waves passing through the sheet. The judging unit judges a state of the sheet by comparing a predetermined standard value with the sound pressure. | 09-22-2011 |
20110231009 | METHOD FOR MANUFACTURING ULTRASONIC SENSOR, ULTRASONIC SENSOR, AND BANKNOTE HANDLING APPARATUS COMPRISING ULTRASONIC SENSOR - According to one embodiment, a method for manufacturing an ultrasonic sensor includes forming a first conductive layer on one side of a piezoelectric body having opposing sides; forming a second conductive layer on the other side of the piezoelectric body; forming a backing layer on the first conductive layer; forming a matching layer of a size corresponding to a size of a conveyed object to be detected on the second conductive layer; and providing at least one incision that cuts through the first conductive layer, the piezoelectric body, the second conductive layer and the matching layer, the incisions having a depth extending from the matching layer to at least the first conductive layer, to form a plurality of channels. | 09-22-2011 |
20110315609 | ULTRASONIC LINE SENSOR, AND SHEET HANDLING APPARATUS COMPRISING ULTRASONIC LINE SENSOR - According to one embodiment, an ultrasonic line sensor includes a plurality of ultrasonic sensors each comprising a circular vibrating surface and generating an electrical signal in accordance with an ultrasonic wave that enters the vibrating surface; and at least one sound absorbing member that is provided between the vibrating surfaces of the ultrasonic sensors and a detection target, and that absorbs an ultrasonic wave, the sound absorbing member being arranged in a position where the sound absorbing member overlaps both edge portions of the vibrating surfaces in a scanning direction that is perpendicular to a conveying direction of the detection target such that effective regions, which are regions in the vibrating surfaces not overlapped by the sound absorbing member, each have two sides parallel to the conveying direction of the detection target. | 12-29-2011 |
20120061901 | ULTRASONIC DETECTING DEVICE AND SHEET HANDLING APPARATUS COMPRISING ULTRASONIC DETECTING DEVICE - According to one embodiment, an ultrasonic detecting device includes a transmitter arranged at a predetermined angle with respect to a conveying plane on which a sheet is conveyed, the transmitter emitting ultrasonic waves towards the conveying plane; a receiver provided with a plurality of channels for detecting the ultrasonic waves, the receiver detecting the ultrasonic waves incident on the channels; and a dividing member to shield the receiver from diffraction waves of the ultrasonic waves emitted from the transmitter, the diffraction waves being diffracted at an edge of the sheet that delimits the sheet in a direction perpendicular to a conveying direction of the sheet. | 03-15-2012 |
20140062261 | ULTRASONIC PROBE, PIEZOELECTRIC TRANSDUCER, METHOD OF MANUFACTURING ULTRASONIC PROBE, AND METHOD OF MANUFACTURING PIEZOELECTRIC TRANSDUCER - According to one embodiment, an ultrasonic probe includes a single crystal piezoelectric body with first and second planes facing each other and having a crystal orientation of [100], first and second electrodes on the respective first and second plane of the piezoelectric body, an acoustic matching layer on the first electrode, and a backing member under the second electrode, wherein the piezoelectric body is polarized along a first direction passing through the piezoelectric body and first and second electrodes, a fracture surface of the piezoelectric body that includes the first direction has a multilayer shape along one of the first and second electrodes, and a thickness of each layer of the multilayer shape is not less than 0.5 μm and not more than 5 μm. | 03-06-2014 |