What are the advantages and advantages of ceramic and Langevin transducers for ultrasonic cleaners?
A Langevin transducer is a piezo-ceramic transducer. However, the ceramic is under compression to prevent any tensile stresses during operation. Disadvantages for the Langevin transducer over a non-pre-stressed ceramic might be cost, weight, and bulk and the need to ensure correct pre-stress levels. The advantages of a Langevin transducer are greater predictability and reliability, possibly allowing greater power to be applied with a smaller ceramic.
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