Local workstations were established for several investigative teams partici- 

 pating at SUPERTANK. Each station included a bench area to support instru- 

 mentation signal conditioners, data acquisition equipment, WWV antennae, 

 and power. Photographs of the local workstations appear in Figures 13-15 

 through 13-18. 



Summary 



The O. H. Hinsdale Wave Research Laboratory at Oregon State University 

 provided the modeling environment for the SUPERTANK Laboratory Data 

 Collection Project. The major features of this environment included: 



a. A two-dimensional wave channel, 342 ft (104.2 m) long, 12 ft 

 (3.66 m) wide, and 15 ft (4.57 m) deep. 



b. A hinged-flap, servo-hydraulic, direct digital control wave generator 

 with active reflected-wave cancellation. 



c. A 64-channel digital data acquisition system with optical communica- 

 tions links for wave profile, water particle velocity, and pore pressure 

 measurements. 



d. Software for control of the wave generator and data acquisition 

 system. 



e. A WWV time code interpreter and readout system for synchronous 

 control of all data acquisition systems. 



/. Surface video and bed form video documentation of the tests. 



g. Workstation areas with power and WWV antennae connections for all 

 supporting measurement groups. 



Acknowledgements 



Oregon State University is grateful to the Coastal Engineering Research 

 Center of the U.S. Army Engineer Waterways Experiment Station for spon- 

 soring the SUPERTANK project, under Contract No. DACW 39-91-K-0013. 

 The authors thank the following OSU individuals for their spirit and helpful 

 contributions to the project: Cheryl Zedwick, Jeffrey Jones, Shawn Ellis, 

 James Washburn, and Joe Richards. The cooperation and creative input of all 

 SUPERTANK investigators and assistants were essential to the ultimate suc- 

 cess of this project. That effort is gratefully acknowledged. Finally, the major 

 responsibilities for this project have been borne by Nicholas Kraus and Jane 

 McKee Smith. The authors extend their appreciation to Nick and Jane for 

 their dedication. 



Chapter 13 Wave Generation and Data Collection Systems 



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