Page 5 - Shimadzu AGX-V2 Series

01 Aggregation of Cutting-Edge Functions Steel and Nonferrous Metal Testing

Revolutionary Technology Provides Full Control ± 20% Stress-strain curve
Strain Rate (%/sec) Stress (N/mm 2 )

Ultra-high-speed Ultra-high-response Strain rate-strain curve
data sampling crosshead control
10 kHz × 1 kHz
Strain Rate (%/sec)
Equipped with Multi Processors and Multi Engines, Strain rate control, in which the rate of deformation measured by an extensometer is controlled to be
Providing Ultrafast Data Acquisition and constant, requires highly accurate control to follow rapid changes in material behavior.
Metal Tensile Test Standard: ISO 6892 (JIS Z 2241) specifies that the allowable range of increase in strain to
High Response Control the yield point is ± 20% or less. The strain rate control specified in ISO 6892 (JIS Z 2241) is possible* to
1
achieve with the AGX-V2 for many materials.
Shimadzu’s proprietary control box is equipped with two processors
and three engine units. It provides 1 kHz high response crosshead
control and 10 kHz high-speed data sampling through high-level
simultaneous parallel processing, based on a meticulous timing Practical Simulation Testing
design, and the allotment of various communications, measurement,
and control functions across multiple devices.

Stroke-time curve
Test force (N)
Leave Strain Rate Control to the Machine Test force-time curve Stroke (mm)
by Utilizing New Autotuning The test force controlled constantly

High-accuracy control is maintained under noisy, highly disturbed
conditions, something that was hard to provide with conventional Time (sec)
autotuning. To maintain engine mounts and other rubber materials at a constant test force, it is necessary to gradually
This high-level autotuning is achieved by using not only feedback change the retention position to suit the characteristics of the test sample. In order to maintain the test force
measurement values but all measurement values in the calculations at a constant value, high control stability is required, with high control responsiveness and no vibrations
for real-time updates of the control model.
generated due to excessive response.* 2
New AGX-V2 control system
Typical testing machine Free Running Compression Testing
Strain Rate (%/sec) System control goal Stroke
control system

Test force (N) Test force Stroke (mm)

300 N
The test force is hold
Sample Contact
Time (sec)
Time (sec)
Stable control is achieved even in free running compression tests. In these tests, the compression indenter or
bending punch is allowed to run free until it makes contact with the sample, at which point the load is
increased up to a set test force.
The overshoot of the target value is reduced, even in free running compression tests of highly rigid materials,
resulting in high-accuracy test force retention.* 2

*1 The graph is an example. The control accuracy may vary depending on the material properties and the surrounding environment. It does not guarantee accuracy.
*2 The graph is an example. The state of control can vary depending on the material properties and the surrounding environment.

4 5