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Overview
Centrifuges are commonly used for modeling the response of geotechnical material or structures such as soil, dams, and foundations to natural and manmade hazards such as earthquakes, floods, and explosions. As the behavior of soil is stress dependant, it is crucial in studying the performance of a geotechnical system to ensure that the correct stresses are applied to each element in the specimen. In a centrifuge a model at a scale of 1/N can be subjected to a steady acceleration field equivalent to N times earth's gravity. In this state, the same stress conditions that exist in the field can be effectively reproduced at all points in the model. By applying appropriate data acquisition techniques, these stresses can be verified throughout the model during centrifuge testing. Moreover, detailed information can be collected on the response of a geotechnical system including measurements in the ground at different locations, the movement of a structure, and video imagery of a sequence of events leading to a seismic event.
The Bloomy Controls' Centrifuge Data Acquisition System is a highly configurable, high-performance data acquisition system for geotechnical centrifuge measurements which has been adopted by research facilities around the world because it is powerful, detailed, flexible, and easy to use. Key features and benefits include:
- Highly configurable hardware and software supports a wide range of test requirements
- Synchronized acquisition maintains the proper time scale of compressed geological events
- Sample rate is adjustable on the fly from 1 to more than 10,000 samples/sec/channel
- Multipurpose relays facilitate geological event simulation such as flooding
- Analog outputs control shaker and high-speed camera synchronously with acquisition of sensor data
- Meta data recording of sensor configuration, test information, user notes and observations
- Web server interface facilitates remote observation over the Internet
- Easy to use and adopted by research institutions around the world
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