Shimadzu-Ultrasonic Fatigue Testing System (Model:USF-2000)

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Ultrasonic Fatigue Testing System

The USF-2000 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.


  • Accelerated evaluation of the fatigue life of metals and materials is possible at 20 kHz cycle speed. Even 1010 cycle tests are completed in a mere six days.
  • 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.
  • Optimal for long-life evaluation of materials and high-speed vibration replication experiments.
  • The test system is extremely compact, allowing it to be installed anywhere.
  • The Windows software provided can be used for easy testing from design of resonance specimens through to actual testing.

[System Configuration]

Part No. Name

Without air compressor

USF-2000 Ultrasonic Fatigue Testing System
Tester main unit (including installation table)
Ultrasonic resonance system
Controller (PC)
Ultrasonic test control measurement software
Cooling system (air compressor*, air drier, air pipes)
346-72209 Displacement measuring instrument (eddy current type displacement sensor, resolution 0.5 µm)
346-52897-01 Displacement sensor calibrator (High-Performance Micrometer CDE-25 C1)
Displacement recorder, High-speed data logger (sampling speed 1 MHz min.), Measurement laptop computer


Test frequency 20 kHz ±500 Hz (recommended test range 20 kHz ±30 Hz) * The test frequency is determined by the resonance frequency of the specimen.
Horn end face amplitude ±10 to ±50 µm
Test stress range Stress when the specimen undergoes ±10 to ±50 µm displacement *The stress value depends on the specimen shape and physical properties.
Power requirements 200 V 3-phase: 2 kVA (air compressor)
200 V 1-phase: 3.5 kVA (ultrasonic fatigue testing system)
100 V 1-phase: 1 kVA (including PC, displacement recorder, air drier)

[Testable Materials/Materials That Cannot Be Tested]

Testable materials Materials that can resonate at 20 kHz, and that generate little heat when resonating (such as high-strength steel, duralumin, titanium alloys, aluminum)
Materials that cannot be tested • Materials that do not resonate at 20 kHz • Materials for which specimen installation is difficult • Materials that generate significant heat due to hysteresis energy when resonating at 20 kHz (such as plastics, ceramics)
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