Surface wave transducer
Overview
It is common knowledge that research of ultrasonic surface waves have burgeoned in recent years. In particular, our surface wave transducers have been considerable advantage in developing technologies using leaky surface waves; evaluation by leaky surface waves have evolved into many materials and a large number of papers is being published on the subject, which is mainly from universities.
The device using our piezoelectric polymer has many features mentioned below, compared to piezoelectric ceramics.
We can supply excellent devices and you can apply them to your testing and products.
Features
- Our Surface wave transducers are made by gluing the piezoelectric polymer film on the curvature base, therefore, it can be easy to achieve the accurate acoustic wave surface needed to generate a leaky surface wave.
In particular, we can design and make a line-focus type device with large curvature, which is now one of the most excellent devices for applications of a surface leaky wave. - The tailing of the echo signal could be well dumped. Because the acoustic impedance of the piezoelectric polymer is good match with water. When you will measure the velocity of a surface wave, a fewer tailing of the signal will give more advantage, that is, you can easily separate the incoming wave and the outgoing one.
- The elements up to around 100MHz are easily designed as you like. The structure, which contains only an element with glued film on the base, is so simple, it can be durable and have long life even in water.
Track record
At a present, we have manufactured more than thirty types of devices for measuring a surface leaky wave, including:
- Size: From two to several dozens millimeters can be made.
- Both of line focus and point focus types are available.
- In line focus types, angular aperture of 150° is available.
- We can design and supply any other devices for measuring a surface wave according to your requirement and offer you maximum advantage of quality by using our piezoelectric polymer.