Page 6 - Shimadzu Dynamic and Fatigue Testing Systems

Stable Input Waveform

Due to the highly controlled response and accurate waveform
reproducibility of Shimadzu dynamic and fatigue testing machines,
they can apply loads to products based on highly precise input
waveforms.
Providing such a stable input waveform ensures that material fatigue
testing can be performed with high accuracy and high reproducibility.
Therefore, even slight differences in product performance or
endurance can be evaluated.

24-Bit 10 kHz Autotuning and
Two-Degree-of-Freedom
High Resolution High-Speed Feedback Automatic Gain Control
PID Control
World's Highest Resolution World's Fastest Feedback Functions

Two-Degree-of-Freedom PID Control Minimizes Effects from External Disturbances
The control method (two-degree-of-freedom PID control) is able to optimize the target response for speci ed signals and the response to external noise. Optimizing
the control parameters using the autotuning feature helps maximize the system performance. The 24-bit high-resolution measurement function and 10 kHz
high-speed feedback ensure even sharp changes in test force or stroke can be controlled reliably.

Response with respect to the target value Response with respect to external disturbances
Excellent rise and
Control Signal Control Signal consistency with
Conveutional Control Conveutional Control speci ed signal
Two-Degree-of-freedom PID Control Two-Degree-of-freedom PID Control

Excellent rise and
consistency with
speci ed signal

Autotuning Function
The autotuning function accurately reproduces target waveforms by
automatically determining optimal control parameters. Simply set up the sample Accurately reproduces
target waveforms
in a similar state as for the intended testing and then specify the preload. Then
the function automatically tunes the manually adjusted control parameters.
Control Signal Control Signal

Automatically selects
optimal control parameters
Control Signal Control Signal

Time (sec) Time (sec)

6