



The Dry Point Contact (DPC) transducer relies on the piezoelectric effect to convert electrical energy into mechanical energy. When piezoelectric ceramic material is subjected to external force, electric charges are generated. Conversely, the material deforms when an electric charge is applied to it. This effect enables the DPC transducer to convert electrical energy into mechanical waves (shear waves), which propagate through media such as concrete to detect internal structural information.
The Dry Point Contact (DPC) transducer relies on the piezoelectric effect to convert electrical energy into mechanical energy. When piezoelectric ceramic material is subjected to external force, electric charges are generated. Conversely, the material deforms when an electric charge is applied to it. This effect enables the DPC transducer to convert electrical energy into mechanical waves (shear waves), which propagate through media such as concrete to detect internal structural information.
New piezoelectric ceramic material
The transducer adopts wafers made of new piezoelectric ceramic material prepared by a special process. It delivers outstanding piezoelectric performance and can effectively excite shear waves in high-attenuation materials such as concrete, enabling high-resolution imaging inspection of concrete.

Dry Point Contact design
No liquid couplant is required. The transducer can be placed in direct contact with the surface under test, greatly simplifying the operation process.
Wear-resistant acoustic head
The transducer head is embedded with a special high-hardness wear-resistant material. It ensures stable performance and good sound transmission during prolonged operation on rough surfaces, extending service life.







