CENTRIFUGE FACILITIES of COLUMBIA UNIVERSITY, NEW YORK CITY
Geo Mechanics
Environment
Science

SPECIFICATIONS
Manufacturer /Model: Actidyn, France / C65-2
Radius / Speed Range : 3.0 m to platform / 260 RPM
Max G-Range:  200 G (200 times of the Earth’s gravity)
Max Payload@100G: 1500 kg
Max Payload@200G: 800 kg
Max Payload Dimensions: L=1000mm, W=800mm, H=800mm
Auto Balancing during in-flight: Imbalance load range +/- 45 kN
Number of Rotary Fluid/Air Joints: 4 hydraulic, 4 water & air joints
Number of Sliprings: Signal (64),  Electrical (12), Video (2)
DAQ System: Wireless DAQ (30 channels), 64 Signal Sliprings

 
 Data Acquisition System
It is a wireless system that holds 30 channels with one of the fastest sampling rates. It is capable of sampling at a rate of up to 10,000 data points per second per channel, thus making it relevant for high frequency testing as well. The wireless data acquisition system was successfully tested on Dec 1, 2004.
From Left:
back: H. Ling, A. Pamuk (Centrifuge Manager), T. Kawabata, K. Uchida
The wireless data acquisition system was developed in collaboration with Prof. Uchida and Prof. Kawabata of Kobe University.


Strong Boxes


Strong Box  1
(40"x24"x15",
100 cm x 60 cm x 37.5 cm)

Box 3
(39 cm x 17.17 cm x 19.3 cm)


Strong Box 2
(24"x16"x15", 61 cm
x 40.6 cm x 38 cm)


Automated Sand Hopper - Speed, falling height, and slit opening are controllable.Of course, it is with automatic back and forth movement.
Other Unique Features
A special cooling unit is provided to regulate the temperature inside the chamber during testing. Thus, the facilities are very relevant for conducting long-term tests without generating significant heats.

Rainfall Device

Laser Profiler

etc....