Views: 3 Author: Site Editor Publish Time: 2019-08-08 Origin: Site
By using the piezoelectric effect of the piezo ceramic transducer, the multimeter can be used to judge whether it is good or bad.
Pulling the two poles of the high power piezo ceramic crystals out of the two wires, then placing the piezo ceramics on the table flat, connecting the two leads to the two test leads of the multimeter, turning the multimeter to the minimum current block, and then gently press the piezo ceramic piece with the pencil eraser. If the pointer of the multimeter is obviously oscillated, the piezo ceramic piece is intact, otherwise, it is damaged.
