Barium Titanate

Barium titanate crystals have this characteristic: when it changes its shape under pressure, it generates electric current and changes its shape again once it is energized. So, people put barium titanate in the ultrasonic wave, it is pressurized to produce current, by the size of the current it produces can be measured by the strength of the ultrasonic wave. On the contrary, with high-frequency current through it, it can produce ultrasonic waves. Barium titanate is used in almost all ultrasonic instruments. In addition, barium titanate has many other uses. For example, railroad workers put it under the railroad tracks to measure the pressure when the train passes; doctors use it to make pulse recorders. With barium titanate underwater detector, is a sharp underwater eyes, it can not only see the fish, but also can see underwater reefs, icebergs and enemy submarines and so on.