Ultrasonic transducer, how does it emit ultrasonic waves?
In the ultrasonic transducer, the main components are piezoelectric ceramic wafers, an oscillating circuit and a resonant impedance matching circuit. The high frequency electric signal is generated by the oscillating circuit, and the piezoelectric ceramic wafer is driven by the resonant impedance matching circuit to vibrate, so that ultrasonic waves can be generated.
What is the frequency and nominality of ultrasonic transducer? How can the resonant frequency be obtained?
Ultrasonic transducer, the frequency of which refers to the maximum power of the transducer. The nominal value is mainly the voltage, which refers to the upper limit voltage value. If it is exceeded, the ultrasonic transducer will be damaged. In addition, the acquisition of its frequency can be obtained by using an impedance analyzer or by actual measurement.
Ultrasonic transducers, which are the main components? What are its characteristics?
The main components of the ultrasonic transducer are an shell, an acoustic window, a piezoelectric ceramic disk transducer, a backing, and an extraction cable. Its main feature is that it also includes an array receiver. For array receivers, there are lead cables, transducers, metal rings, and rubber gaskets.
What is the resonance state of the ultrasonic transducer? Under what conditions can it be converted into ultrasonic vibration?
Specifically, the resonant state of the ultrasonic transducer means that the operating state is at the resonant frequency point of the transducer. In addition, about the ultrasonic transducer, the ultrasonic vibration must satisfy the condition is to apply an 200 kHz ultrasonic voltage.
Ultrasonic transducer, how can it be understood? For the 60W and 100W ultrasonic transducers, what is the difference between them?
The understanding of ultrasonic transducers can also be considered as an energy conversion device, because there is a energy transition during operation, As for the main difference between the 60W and 100W ultrasonic transducers is power and capacity.
Ultrasonic transducer, what kind of device is it? Is there a piezoelectric ceramic in this device?
An ultrasonic transducer is a device that converts high frequency electrical energy into mechanical energy. In terms of specific types, there are generally two types of magnetostrictive and piezoelectric ceramic. As for the composition, it is certain to have piezoelectric ceramics, so that the transducer can work normally.
What’s the common method for measuring the speed of ultrasonic transducers?
Among the method about measuring speed of ultrasonic transducer, a resonance method is commonly used, transducers emit similar sound wave of plane wave and then reflected and superimposed by the sound wave between the end faces after being reflected by the receiver, thereby , It forms a resonance standing wave phenomenon. The speed of sound of the ultrasonic transducer is measured by the change of the electrical signal and the distance between the resonant positions.
About ultrasonic transducers, how they properly disassemble them? How can they match circuit?
Firstly,They need to disassemble ultrasonic transducer of the positive and negative wires, and then applying the degumming syrup to the contacting surface. After that, using a wrench to disassemble screws, and at the same time, dealing with the contacting faces , so that the ultrasonic transducer can be smoothly removed. As for the matching circuit of the transducer, in general, there is a certain difference between different products, but it is commonly used for series inductance matching.
Is the upper limit of the operating voltage on the ultrasonic transducer?
About ultrasonic transducer, the upper limit of the operating voltage is marked. Therefore, it cannot exceed assigned voltage . Otherwise, the transducer is easily damaged. For example, if the transducer is represented as PHA-34-12C, then its operating voltage is nominally 1500Vpp.
How to detect the impedance of the ultrasonic transducer? And, there are some impacts on the capacitance of the ultrasonic transducer?
Ultrasound is better than the impedance of the transducer. If it is to be detected, it is relatively simple to use an impedance analyzer. If you don't have one, you can take a look at the book about acoustic measurement experiment, which has some corresponding methods for specific operations. As for the capacitance effect of the ultrasonic transducer, because it is only a manifestation, it will affect the specific aspect of the transducer matching.
Ultrasonic transducers, what kind of pulses do they need to generate or obtain ultrasound? How to confirm the resonance frequency ?
About ultrasonic transducer, the pulse required is a high-frequency pulse signal, and is determined by its driving frequency. As for the resonant frequency of the transducer,you could inquire us, or the impedance analyzer can be used for detection, and the circuit can be used for detection.You can select an appropriate method according to the actual situation.
Piezo Hannas (WuHan) Tech Co,.Ltd is a professional piezoelectric ceramics and ultrasonic transducer manufacturer, dedicated to ultrasonic technology and industrial applications.