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Ultrasonic Transducer information

  • Oct
    01
    array receiver of ultrasonic transducer

    Mainly introducing the connection mode of the ultrasonic transducer array (auxiliary receiver) output port. The next chapter studies the design problem of the receiving and transmitting circuit of the disc-type piezoelectric transducer (main transducer), The circuit-assisted receiver array consists

  • Sep
    30
    How the combined transducer works

    The resonant frequency and bandwidth of ultrasonic transducers are selected from the PZT-5A piezoelectric ceramic disc polarized in the thickness direction as the transducer, and the radius R of the piezoelectric ceramic disc is 6mm and has a thickness h. The height of the outer surface of the inner

  • Sep
    30
    theoretical analysis of vibration mode ultrasonic transducers

    When the axial and radial electromechanical factors of the disc-type piezoelectric vibrator are relatively strong, the one-dimensional theory established by the pure radial model or the pure thickness model is not accurate enough. Between the theoretical calculated value and the experimental value.

  • Sep
    28
    Impedance characteristics of piezoelectric ultrasonic transducers

    A physical picture of a piezoelectric disc-type transducer designed and fabricated. In order to reduce the influence of multipath noise, using the aforementioned sound field Fresnel zone, the ultrasonic transducer is slightly higher than the radiating surface (or acoustic window) of the piezoelectri

  • Sep
    28
    Acoustic impedance of a disc type piezoelectric vibrator transducer

    Piezoelectric disc type of transducers discuss the advantages and disadvantages of various forms of ultrasonic transducer. Considering the performance, mounting dimensions and field testing of ultrasonic ranging sensors, piezoelectric ceramic discs are selected radial/ thickness of the vibration mod

  • Sep
    27
    Main performance indicators of ultrasonic transducers

    Ray characteristics of ultrasonic waves are formed in a straight line when they encounter two substances with different acoustic impedance ratios.At the interface, reflection and refraction transmission occurs. The reflection and refraction of ultrasonic waves follow the laws of geometric optics. Th

  • Sep
    27
    Radial vibration mode of the ultrasonic transducer

    Modeling and experiment of ultrasonic transducer in the air medium, the frequency band of the ultrasonic sensor is generally narrow, which directly affects its detection performance for high-speed moving targets. In order to solve the narrow band of the ultrasonic sensor, a micro-miniature transduce

  • Sep
    24
    What’s the multi-probe ultrasonic range finder

    A multi-probe ultrasonic range finder for detecting traffic flow conditions, which not only provides information for traffic flow survey statistics and intersection traffic signal automatic control systems, but also applies to various automatic monitoring related to motor vehicle passing and arrival

  • Sep
    24
    Phase estimation method of ultrasonic transducers

    The phase estimation method of time delay estimation is a practical method to improve the accuracy of ultrasonic delay estimation. Based on the fact that for a simple harmonic, the fourier transform (DFT) can be used to calculate its fourier coefficient corresponding to the resonant frequency, and t

  • Sep
    21
    Error and precautions of ultrasonic distance sensor

    In the industry, the typical application of ultrasonic distance transducers are non-destructive testing of metals and ultrasonic thickness measurement. In the past, many technologies were hindered by inability detecting the inside of objects, and the emergence of ultrasonic sensing technology change

  • Sep
    20
    Working Mode of Ultrasonic Sensor

    Work programIf a piezoelectric ceramic piece with a resonant frequency of 40 kHz in the transmitting sensor is applied (a 40 KHz high-frequency voltage is applied to the double crystal oscillator, the piezoelectric ceramic piece is elongated and shortened according to the polarity of the applied hig

  • Sep
    20
    The functions and blind zone of ultrasonic transducer

    Output function All series of ultrasonic sensors have a switch output type. Some products also have 2 switching outputs (such as minimum and maximum level control). Most products offer either analog currents or analog voltage output. Noise suppression, metal knocking, roaring and other noises do not

  • Sep
    19
    Mechanism of ultrasonic range finder

    As the medium for transmitting information, ultrasonic is more and more important in various fields such as flaw detection, ranging, and speed measurement due to its direct and reflective properties and its characteristics that are not easily affected by external factors such as light and electromag

  • Sep
    19
    Components and Property of Ultrasonic Sensor

    The ultrasonic sensor is a sensor that is developed by using the characteristics of ultrasonic waves. Ultrasonic wave is a kind of mechanical wave with a vibration frequency which is higher than that of sound waves. It is generated by the vibration of the transducer wafer under the excitation of vol

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