Abstract: The present disclosure provides a transducer for generating ultrasonic waves to detect an object and an ultrasonic probe using the same. The transducer includes a piezoelectric layer. The piezoelectric layer has a first surface and a second surface opposite to the first surface. The first surface is farther from the object than the second surface and includes a curved structure protruded along a first direction away from the object. The ultrasonic probe includes a handle component and a transducer. The transducer is arranged at one end of the handle component.

Abstract: An underwater ultrasonic device includes a curvilinear ultrasonic transducer and a plurality of straight linear ultrasonic transducers. The straight linear ultrasonic transducers are disposed with respect to the curvilinear ultrasonic transducer. A first angle is included between the straight linear ultrasonic transducers. One of the curvilinear ultrasonic transducer and the straight linear ultrasonic transducer is configured to transmit a plurality of ultrasonic signals. Another one of the curvilinear ultrasonic transducer and the straight linear ultrasonic transducer is configured to receive a plurality of reflected signals of the ultrasonic signals.

Abstract: An ultrasonic transducing module, including a base, a piezoelectric ultrasonic transducer, and a micromachined ultrasonic transducer, is provided. The piezoelectric ultrasonic transducer is disposed on the base. The micromachined ultrasonic transducer is disposed on the piezoelectric ultrasonic transducer. The piezoelectric ultrasonic transducer is disposed between the base and the micromachined ultrasonic transducer. An ultrasonic wave emitted by the piezoelectric ultrasonic transducer penetrates the micromachined ultrasonic transducer and is then transmitted to the outside. An ultrasonic probe is also provided.

Abstract: A photoacoustic imaging device is suitable for performing photoacoustic imaging on an object to be tested and includes a light emitting device and a light-transmissible ultrasonic transducer. The light emitting device emits a beam along an optical axis. The light-transmissible ultrasonic transducer is disposed on the light emitting device at the optical axis and includes a transparent substrate and a plurality of ultrasonic transducer units. The plurality of ultrasonic transducer units is disposed on the transparent substrate and allows the beam to pass therethrough and be incident to the object to be tested along the optical axis, for coaxially receiving an ultrasound transmitted from the object to be tested along the optical axis after the beam is incident into the object to be tested.

Abstract: An ultrasonic transducer module including a first electrode layer, a second electrode layer, a first piezoelectric material layer, a third electrode layer, a fourth electrode layer, a second piezoelectric material layer, and an insulation layer is provided. The first piezoelectric material layer is disposed between the first electrode layer and the second electrode layer. The second electrode layer is disposed between the first piezoelectric material layer and the third electrode layer. The second piezoelectric material layer is disposed between the third electrode layer and the fourth electrode layer. The insulation layer is disposed between the second electrode layer and the third electrode layer.

Abstract: An ultrasonic transducer includes a piezoelectric material layer, a first electrode layer, and a second electrode layer. The piezoelectric material layer has an ultrasonic wave emitting side and a back side opposite to the ultrasonic wave emitting side. The piezoelectric material layer has a protrusion structure or a recess structure on the back side. The protrusion structure or the recess structure overlaps a central axis of the piezoelectric material layer. The first electrode layer is disposed on the back side of the piezoelectric material layer. The second electrode layer is disposed on the ultrasonic wave emitting side of the piezoelectric material layer.

Abstract: A multifunctional probe includes a hand-held housing, a signal detector and an array probe. The signal detector is flexibly disposed on the hand-held housing or at its first end. The array probe is disposed at one end (e.g., second end) of the hand-held housing and electrically coupled to the signal detector. The first contact time of the signal detector in contact with the living body may at least partially overlap with the second contact time of the array probe in contact with the living body. The signal detector and the array probe generate the first electronic signal. The multifunctional probe includes a flexibly-connected signal detector and an array probe, which can contact and/or detect the living body at the same time. Thus, the detection efficiency and accuracy are effectively increased. A detection method applied to the multifunctional probe is also provided.

Abstract: A waveform improvement method includes providing a piezoelectric material coupled to a matching material, generating a plurality of first grooves in a matching layer of at least one matching layer, packaging an isolation material into the plurality of first grooves, and providing two input voltages to the piezoelectric material for generating an ultrasonic signal by the piezoelectric material. The piezoelectric material includes at least one piezoelectric layer. The matching material includes at least one matching layer. The matching material is used to match acoustic impedance of the piezoelectric material. The plurality of first grooves in the matching layer are used to optimize the acoustic impedance and a vibration isolation effect.

Abstract: An ultrasound image system is provided. The ultrasound image system includes an ultrasound probe and a processing circuit. The ultrasound probe includes a substrate, a first transducer array and a second transducer array. The first transducer array is fixed disposed on the substrate and configured to receive a first ultrasound signal The second transducer array is fixed disposed on the substrate and configured to receive a second ultrasound signal. Each of the first transducer array and the second transducer array includes a plurality of ultrasound transducer elements arranged along a first direction. The ultrasound transducer elements of the first transducer array are interleaved with the ultrasound transducer elements of the second transducer array. The processing circuit is coupled to the first transducer array and the second transducer array and is configured to generate an ultrasound image signal according to the first ultrasound signal and the second ultrasound signal.

Abstract: An underwater ultrasonic device is provided. The underwater ultrasonic device comprises: a setting area, wherein the setting area comprises a plurality of setting intervals in sequence, and a plurality of ultrasonic devices arranged in order along the setting area respectively corresponding to the setting intervals, wherein each of the ultrasonic devices has a signal opening angle, and the signal opening angle is greater than the arc angle of the arc interval corresponding to the ultrasonic device.

Abstract: An underwater ultrasonic device is disclosed. The underwater ultrasonic device comprises a body and an ultrasonic transducer. The ultrasonic transducer has a curved interface having a first side and an adjacent second side for transmitting and receiving a plurality of ultrasonic signals, and the first side has a first curve and the second side has a second curve, wherein the first curve and the second curve has different curvatures. Therefore, the underwater ultrasonic device can achieve the purpose of underwater wide-angle measurement with increased sensitivity and transmission capability.

Abstract: An ultrasound image system is provided. The ultrasound image system includes an ultrasound probe and a processing circuit. The ultrasound probe includes a substrate, a first transducer array and a second transducer array. The first transducer array is fixed disposed on the substrate and configured to receive a first ultrasound signal The second transducer array is fixed disposed on the substrate and configured to receive a second ultrasound signal. Each of the first transducer array and the second transducer array includes a plurality of ultrasound transducer elements arranged along a first direction. The ultrasound transducer elements of the first transducer array are interleaved with the ultrasound transducer elements of the second transducer array. The processing circuit is coupled to the first transducer array and the second transducer array and is configured to generate an ultrasound image signal according to the first ultrasound signal and the second ultrasound signal.

Abstract: An underwater ultrasonic device includes a curvilinear ultrasonic transducer and a plurality of straight linear ultrasonic transducers. The straight linear ultrasonic transducers are disposed with respect to the curvilinear ultrasonic transducer. A first angle is included between the straight linear ultrasonic transducers. One of the curvilinear ultrasonic transducer and the straight linear ultrasonic transducer is configured to transmit a plurality of ultrasonic signals. Another one of the curvilinear ultrasonic transducer and the straight linear ultrasonic transducer is configured to receive a plurality of reflected signals of the ultrasonic signals.

Abstract: An underwater ultrasonic device includes at least one first ultrasonic transducer and at least one second ultrasonic transducer. The first ultrasonic transducer is configured to transmit a plurality of ultrasonic signals and the second ultrasonic transducer is configured to receive a plurality of reflected signals of the ultrasonic signals. The first ultrasonic transducer and the second ultrasonic transducer are disposed with respect to each other. One of the first ultrasonic transducer and the second ultrasonic transducer is curvilinear and another one of the first ultrasonic transducer and the second ultrasonic transducer is curvilinear or straight linear.

Abstract: An underwater ultrasonic device includes at least one first ultrasonic transducer and at least one second ultrasonic transducer. The first ultrasonic transducer is configured to transmit a plurality of ultrasonic signals and the second ultrasonic transducer is configured to receive a plurality of reflected signals of the ultrasonic signals. The first ultrasonic transducer and the second ultrasonic transducer are disposed with respect to each other. One of the first ultrasonic transducer and the second ultrasonic transducer is curvilinear and another one of the first ultrasonic transducer and the second ultrasonic transducer is curvilinear or straight linear.