Your Professional Ultrasonic Transducer Supplier
Xian Baochen Information Technology Co., Ltd. is located in high-tech Zone, Xi 'an, Shaanxi Province, China, is a focus on sensors, transmitters, inverters, power semiconductor devices and supporting instruments R & D, manufacturing, sales and service enterprises. The company invests in research and development team, cooperates with excellent universities, integrates industry resources, and provides the best quality solutions for domestic and foreign users. Enterprise mission: to meet user needs and create value for customers.
Why choose us
Sales Market
We Products are exported to Europe, America, Southeast Asia, West Asia, Central Asia and other countries around the world. Our products are well received in these markets.
Our Service
Able to quickly respond to customer needs, to provide personalized customization, timely delivery, professional technical support and perfect after-sales service.
Strict Quality Control System
Able to efficiently produce large quantities of products, advanced production processes and stable supply chains, the implementation of strict quality control system. Constantly introduce new technologies and new materials to improve product performance and production efficiency.
Wide Range of Applications
Through the EU CE, RoHs testing, products are widely used in petrochemical, water conservancy and hydrology, machinery and equipment, automobile manufacturing, industrial process control, weighing measurement, people's livelihood applications and other fields.
Ultrasonic Transducer
Ultrasonic transducers produce ultrasonic waves—sound waves with frequencies above 20 kHz, beyond the hearing range of humans. These waves propagate through various media (solids, liquids, or gases) and are used for purposes such as material inspection, imaging, and cleaning. At the heart of most ultrasonic transducers lies a piezoelectric ceramic element that deforms when subjected to an electrical signal, creating mechanical vibrations that emit ultrasound. Conversely, the element can receive returning waves, transforming mechanical energy back into electrical signals for analysis.
|
Model |
Dimensions |
Electrical capacitance |
Electromechanical |
Resonant Frequency |
Equivalent Resistance |
|
|
D×t |
@1KHz,1V |
Kp |
Fr |
R0 |
||
|
[mm] |
[nF] ±25% |
[%] |
[MHz] ±5% |
[Ω] |
|
|
|
HNYA28-2.04-1 |
Φ28×2.04 |
3 |
≥52 |
1 |
≤3.5Ω |
|
|
HNYA28-1.02-1 |
Φ28×1.02 |
6 |
≥54 |
2 |
≤3.5Ω |
|
|
HNYA25-0.41-1 |
Φ25×0.41 |
12.3 |
≥56 |
5 |
≤2.5Ω |
|
|
HNYA20-0.41-1 |
Φ20×0.41 |
7.9 |
≥56 |
5 |
≤2.5Ω |
|
|
HNYA20-0.67-1 |
Φ20×0.67 |
5.2 |
≥56 |
3 |
≤2.5Ω |
|
|
HNYA16-0.41-1 |
Φ16×0.41 |
2.45 |
≥48 |
5 |
≤3.5Ω |
Advantages of Ultrasonic Transducer
High Degree of Accuracy
UT can detect very small flaws with precise measurements.
Depth Penetration Capabilities
Sound waves can penetrate deep into materials, making it suitable for thick structures.
Non-Destructive Nature
The material being tested remains intact, allowing for continuous use without damage.
Versatility
UT can be applied to a wide range of materials, including metals, plastics, and composites.
Types of Ultrasonic Transducers
Contact Ultrasonic Transducers
Designed for direct contact with the test object, contact transducers are commonly used in ultrasonic flaw detection, weld inspections, and thickness gauging. A coupling medium (like gel) is usually applied to facilitate efficient transmission of sound waves. Our bubble detection sensors are an example of specialized contact transducers.
Immersion Ultrasonic Transducers
Immersion transducers operate with the test object submerged in a liquid bath, typically water. They are ideal for automated scanning and high-precision measurements, making them popular in aerospace, automotive, and semiconductor industries. These transducers are similar to our CS-220KH underwater transducers, which are designed for optimal performance in liquid environments.
Air-Coupled Ultrasonic Transducers
These transducers send and receive ultrasonic waves through air, eliminating the need for contact or immersion. They are particularly useful for testing delicate materials such as composite panels, paper, or foam, where direct contact is impractical or could cause damage. Our acoustic transducer series includes solutions for airborne applications.
Dual-Element Ultrasonic Transducers
Featuring two piezoelectric elements—one for transmitting and one for receiving—dual-element transducers enhance near-surface resolution and are especially effective in detecting small defects close to the material surface or within thin-walled structures. This technology is incorporated in several of our sensor products for enhanced detection capabilities.
Phased Array Ultrasonic Transducers
Phased array transducers consist of multiple small elements that can be electronically controlled to steer, focus, and shape the ultrasonic beam. These advanced transducers are widely used in complex inspections, offering real-time imaging and enhanced defect characterization. Our high-frequency KQ-230KH acoustic transducers employ similar advanced technology for precise sound wave control.
High-Frequency Ultrasonic Transducers
For applications requiring exceptional detail, such as medical intravascular imaging or microelectronics inspection, high-frequency transducers (above 50 MHz) provide superior resolution but with limited penetration depth. These specialized transducers utilize our premium high-performance piezoelectric ceramic materials for optimal performance.
Applications of Ultrasonic Transducers
Medical Diagnostics: From prenatal scans to cardiovascular assessments, ultrasonic transducers enable non-invasive imaging of internal body structures. Read more about piezoelectric applications in healthcare.
Industrial Non-Destructive Testing (NDT): Used to inspect welds, pipelines, aircraft parts, and more, ensuring structural integrity without harming the object. Our flow measurement transducers are frequently used in industrial testing applications.
Ultrasonic Cleaning: Transducers produce microscopic cavitation bubbles that dislodge contaminants from jewelry, surgical tools, and precision instruments. Our HJ-3528B cleaner transducers are ideal for these applications.
Flow and Level Measurement: In water treatment, oil & gas, and chemical industries, ultrasonic transducers monitor flow rates and liquid levels with high accuracy. Explore our liquid flow transducers for these applications.
Proximity and Distance Sensing: Essential in automotive parking sensors, robotics navigation, and smart home devices for obstacle detection. Learn about the science behind ultrasonic sensing.
Material Characterization: Used in research and quality control to assess properties such as elasticity, density, and homogeneity.
The Piezoelectric Crystal
The center of the transducer is introduced as the ‘active ingredient’ of the system. It tolerates rarefactions and compressions in order to transform the electrical energy into ultrasonic energy or contrariwise. A fault detector is another instrument utilized to produce the electrical pulse, which then conveys to the transducer.
The Backing
It is a very dense substance, which is also too fundamental. The exclusive target of this is to absorb the energy that emits from the back of the crystal to monitor the vibrations. An excellent accuracy transducer can be constructed by controlling the acoustic impedance of the backing substance of the crystal. If the backing material is transformed, the difference in this acoustic impedance can be modified. This will certainly influence the transducers as the resolution may change much higher.
Wear-plate
A wear plate is set in the transducer to support the piezoelectric crystal in different applications. The environmental problems are that it protects the ultrasonic transducer from usually wear and tear and corrosion. The wear plate generally operates as an acoustic converter between the crystal and water, wedge, or delay line.
Ultrasonic transducer, the use of its resonant frequency of the same piezoelectric ceramic piezoelectric effect, the conversion of electrical energy into mechanical vibration. Usually first by the ultrasonic generator to generate ultrasound, by the ultrasonic transducer will be converted into mechanical vibration, and then by the ultrasonic export device, ultrasonic receiving device can produce ultrasound. Therefore, as an energy conversion device, the function of the ultrasonic transducer is to convert the input electrical power into mechanical power (i.e., ultrasound) and then pass out, while its own consumption of a small part of the power.
Ultrasonic transducer structure mainly has a shell, sound window (matching layer), piezoelectric ceramic disc transducer, backing, lead-in cable, receiver and other major components. Among them, the piezoelectric ceramic disc transducer has the same role as most transducers, mainly used to transmit and receive ultrasonic waves; ultrasonic receiver in the piezoelectric ceramic disc transducer above, mainly by the lead cable, transducer, metal ring and rubber gasket, receive the piezoelectric ceramic disc transducer outside the frequency band generated by the Doppler dial signal.
Ultrasonic Transducer Materials
Piezoelectric Materials
Common materials include lead zirconate titanate (PZT) and quartz. These materials are chosen for their high sensitivity and efficiency in converting electrical signals to ultrasonic waves.
Backing Materials
Materials like tungsten or epoxy are used to absorb excess vibrations and enhance the transducer’s performance.
Matching Layers
A layer of material with intermediate acoustic impedance is used to improve the transmission of ultrasonic energy into the test medium.
Design and Specifications of Ultrasonic Transducer
Frequency Range
Ultrasonic transducers can operate at various frequencies, typically ranging from 1 MHz to 20 MHz. The frequency affects the resolution and penetration depth of the ultrasonic waves.
Beam Profile
The shape and size of the ultrasonic beam are crucial for accurate detection and imaging. Different applications may require focused or divergent beams.
Sensitivity
The sensitivity of a transducer determines its ability to detect small flaws or produce detailed images. High sensitivity is essential for applications like medical imaging.
How to Choose Ultrasonic Transducer
Frequency
Higher frequencies provide better resolution but lower penetration, while lower frequencies penetrate deeper but with less detail.
Sensitivity
Choose a transducer with appropriate sensitivity for the specific application.
Application Requirements
Consider the material type, thickness, and desired inspection depth.
Environmental Factors
Ensure the transducer can withstand the operating environment, including temperature, humidity, and potential contaminants.
Maintenance and Care
When it comes to the maintenance and care of ultrasonic transducers, it is important to regularly check for any signs of wear or damage to the components. Additionally, ensuring that the ultrasonic transducer frequency is properly calibrated and functioning optimally will help prolong its lifespan and maintain its effectiveness.
Cleaning and Storage
Regular cleaning and proper storage are crucial for maintaining the performance and longevity of ultrasonic transducers. Use appropriate cleaning solutions and store transducers in a dry, temperature-controlled environment to prevent damage.
Calibration
Periodic calibration is essential to ensure the accuracy and reliability of ultrasonic transducers, especially in critical applications. Employing certified equipment and qualified personnel should be the standard for calibration.
FAQ
As one of the leading ultrasonic underwater communication transducer manufacturers and suppliers in China, we warmly welcome you to wholesale cheap ultrasonic underwater communication transducer in stock here from our factory. All customized products are with high quality and competitive price.
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