UCI Hardness Testing (HT)

Our company specializes in UCI (Ultrasonic Contact Impedance) hardness testing. This is an advanced non-destructive technique that enables precise hardness measurement of materials in a non-invasive way. The method uses ultrasonic waves to determine the surface hardness of the tested material. It is especially useful for components with complex shapes where traditional hardness testing methods are difficult to apply, or when the tested component cannot be damaged.
How UCI Hardness Testing Works
The UCI hardness testing process begins with proper preparation of the material’s surface. Then, a specialized probe with an ultrasonic sensor is gently pressed against the tested surface to ensure contact. The measurement principle is based on comparing the oscillation frequency of the indenter when it is in the air with its frequency when pressed into the material under a specific load. This frequency shift is proportional to the contact surface area.
The measuring system analyzes these impedance changes, which allows the surface hardness to be determined. The measurement result is then displayed on the device screen, enabling the operator to quickly obtain accurate information about the hardness of the tested material.
The UCI method is widely used in many industries, such as aerospace, tool manufacturing, electronics, and metallurgy. It allows for effective quality control of products and the detection of surface defects without damaging the material.




