Significant stress can be produced by testing under resonance conditions, and furthermore is economical.
Constant stress amplitude control is possible via the controller (provided) with the PC.
Ultrasonic Fatigue Testing System
The USF-2000A implements materials fatigue testing at 20 kHz. Consequently, it is possible to evaluate 109 to 1010 order fatigue strength, where it had been difficult to obtain data before. Also, data for 107 cycles can be obtained in about ten minutes.