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EPC Products Geotechnical Testing Laboratory Geotechnical Unit Test Soil mechanical properties test Dynamic triaxial test Dynamic Triaxial System DYNATRIAX EmS
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Dynamic Triaxial System DYNATRIAX EmS

Model：Dynatriax-EmS

Use：Dynamic Triaxial System

Standard： ASTM D2850 | ASTM D4767 | ASTM D7181 | ASTM D3999 | ASTM D5311 | BS 1377:7 | BS 1377:8 | AASHTOT307

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Description

Dynatriax EmS benefits from CONTROLS Group new EmS "Electromechanical Servoactuation" technology.
EmS technology is environmentally friendly and clean to operate, requiring no compressed air or hydraulic oil. It offer excellent reliability, accurate testing and lower maintenance requirements. The intuitive design ensures it can be quickly and easily maintained, only requiring regular lubrication.
The system controls three closed-loop axes:

  • Axial load/displacement

  • Cell pressure up to 1000 kPa

  • Back pressure up to 1000 kPa

The base system includes:

  • Reaction frame

    • Robust 2-columns construction, stiff and compact

  • Electromechanical vertical load application

    • high performance motorized actuator, 15 kN capacity, backlash free and noiseless

    • sophisticated PID closed-loop control, ensuring load is reached fast, smoothly and accurately and then maintained with high level of accuracy. The submersible load cell delivers high accuracy from the lowest values

  • Data acquisition, process and control

The CDC manages up to 3 closed loop axes (axial load/displacement, cell and back pressure) with an effective loop rate of 10 kHz and performs the test completely automatically including the on/off valves for the drainage line and for the air supply to the triaxial cell. It is linked to the PC via LAN/Ethernet link (1 Gbit/s) and comes with 16 transducer ports (real resolution 16 bit).

  • PID control

An extremely efficient algorithm with larger gain ranges gives enhanced sensitivity, making it easier to tune the system and achieving a more accurate wave shapes.
Recently added features include manual and automatic amplitude control which compensate for small changes that may occupr in the system during cycling, ensuring that the required peaks are consistently reached. The improved tuning panel, with its more user-friendly interface, provdes all the tools necessary to optimize the system control during static and cyclic test stages. 
controls, Soil Testing, Dynamic Triaxial, Triaxial

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