Ultrasonic hardness tester with 10, 50 or 100 Newton probe
The HardyTest UCI 3000© meets all the needs of the professional user in hardness testing. It is oriented by the different types of probes, the wide range and high precision for an incredible variety of applications.
Working principle
The HardyTest UCI 3000© works on the principle of "Ultrasonic Contact Impedance": The piezoelectric crystal causes the rod in the probe to vibrate longitudinally. The Vickers diamond at the lower end of the rod is pressed by a spring into the workpiece surface. Depending on probe choice, this is done with the thrust of 10, 50 or 100 Newton.
The rod oscillates at natural resonance frequency, which is however reduced when the diamond penetrates into the measurement object. The change in the resonance frequency also depends on the elastic modulus of the material. For this reason, the device must be calibrated in accordance with new material changes.
The frequency shift is proportional from the root of the impression surface. The device measures the change in frequency and calculates the hardness value considering the thrust and the calibration.
Features and equipment
Hardness testing on all ferromagnetic materials and alloys (with limitations)
Color display-screen
Memory for 12,900 readings , divisible into 100 blocks
Automatic test sequence
Measurements of the hardness of layers starting at 30 microns!
Very good reproducibility
Suitable for mass testing of workpieces
Housing is protected against moisture and dust
Low requirements for the mass and thickness of the workpiece; for example, with thin-