- High frequency
- High peak-to peak displacement
- Low power consumption
- High quality factor
Power ultrasonic transducers such as the Langevin transducer can be used in a wide variety of applications in the fields of industry and >> life sciences. High-quality piezoelectric rings generate >> ultrasonic waves in the transducer, which are amplified to the device's peak and induce vibrations in the target media.
Langevin Transducer Specifications
PI Ceramic offers a Langevin transducer prototype and develops it together with the customer to meet their specific application requirements. The focus is on high mechanical quality and low power consumption.
Specifications & performance for an ultrasonic transducer prototype used for blending cell suspensions
Customized Transducer Versions Available on Request
Special applications mean unique requirements. With more than thirty years of piezo expertise, PI Ceramic creates complete solutions of the highest quality. Our services range from application-specific consulting to the development and manufacturing of >> ultrasonic transducers, to the provision of the appropriate drive electronics. In order to develop the best possible piezo systems, PI Ceramic provides virtual prototypes before actually manufacturing the subsystems or complete solutions. Simulations allow us to reach an agreement with our customers in a faster, more precise, and more economical way.
Power Ultrasonic Transducers with Components Made of Lead-Free Piezo Ceramics
In addition to developing and manufacturing Langevin transducers with rings made of lead zirconate titanate (PZT), PI Ceramic’s services include customized development of these power ultrasonic transducers with lead-free piezoceramics.
The rings made of potassium sodium niobate (KNN) are not suitable for replacing the rings made of PZT in all applications. The adapted transducers with lead-free ceramic components nevertheless achieve specifications that are well suited for many applications. To achieve this, PI Ceramic combines in-house expertise in the development of lead-free materials with many years of experience with developing and manufacturing power ultrasonic transducers.
Comparative results of lead-free and conventional PZT power ultrasonic transducers for use in cell lysis and for sample mixing:
Performance data for a lead-free KNN ultrasonic transducer prototype in comparison to a 35 kHz transducer with lead containing PZT rings in unloaded state: Displacement amplitude at the tip with increasing power input (left), displacement amplitude at the tip with increasing control voltage at 35 kHz (right)
The parameters of the >> material are decisive for achieving the desired power ultrasound transducer specifications. The use of lead-free KNN rings reduces the displacement at the same power level and the same voltage. This can be compensated for with a higher control voltage.
It should be noted that the higher loss factor with lead-free materials at the same displacement amplitude at the tip of the transducer leads to greater heat generation in the rings. In addition, greater self-heating occurs due to a higher power loss.
We will be happy to partner with you in developing special power ultrasonic transducers customized to your applications, whether with lead-free KKN components or with PZT components.
Contact Us!
Discuss your project specifications and requirements with a local PI Ceramic sales engineer.
- Mesh nebulizers
- Sample preparation & cell lysis
- Phacoemulsification
- Ultrasonic scalpels
- Tissue aspiration
- Tartar removal
