SUMMARY 



|| METHODS AND SYSTEMS OF OUTSIDE ACTIVITIES 



OFFICE PROGRAM 



DESIGN CRITERIA AMD PROBLEMS 



METHODS IN DEVELOPMENT 



PROPOSED METHODS AHP/OR SYSTEMS 



AIR DROPPABLE CURRENT METER 



SERIES OP BUOYS WITH TELE- 

 METERING CAPABILITIES 

 (SYNOPTIC NETWORK) 



CABLE SUSPENDED CURRENT 

 METERS NOT AFFECTED BY 

 SHIP'S MOTION 



HOT RESISTANCE WIRE 

 ACOUSTIC FLOW METER 



SPECIFICATIONS FOR SENSOR: 



1. Speed Range: 0.1 to 10.0 



Accuracy: ±0.1 knot 



accuracies desired for 

 special research projects) 



2. Direction: ± 10 degrees 



3. Depth range: unlimited 

 k. Simplicity la overall 



design and operation 



5. Rugged 



6. Limited maintenance 



7. Standardization of output 

 signal range 



SPECIFICATIONS OF SYSTEMS: 

 Standardization of output sig- 

 nals compatible to modem day 



Underwater Sonde (Lee Instrument Company) 



MAGNETIC FLOW METER 



Foxboro Company and MlnneapollB 

 Honeywell ) 



30 -FOOT ELECTRONIC 

 RESISTANCE WIRE WAVE 



WAVE STAFF ACCELEROMETER 



RADAR-TYPE DEVICE 



AIRBORNE SEA-SWELL SYSTEMS 



FLOATING SEA-SWELL SYSTEMS 

 WITH CAPABILITIES FOR SELF- 

 RECORDING OR 1 



ACOUSTIC WAVE-HEIGHT SYSTEMS 



Stable reference level 



Wide range devices 



Turbulence measuring instruments 



Wave direction indicators 



Measure wave periods from 1-30 

 seconds 



Must withstand prolonged use in 



Wave records on magnetic tape 

 supplemented by a visual record 

 for monitoring and other special 

 purposes 



BOTTOM PRESSURE DEVICES 



Naval Ordnance Laboratory; Univer- 

 sity of California; Scrlpps insti- 

 tution of Oceanography; Bureau of 

 Yards and Docks) 



SHIPBOARD WAVE ACCELEROMETER 

 British National Institute of 

 Oceanography; Woods Hole Oceano- 

 graphlc Institution) 



FLOATING TYPE WAVE RECORDERS 

 .David Taylor Model Basin; Woods 



Hole Oceanographlc Institution) 



FIXED WAVE GAUGES 



.Beach Erosion Board; Corps of 



Engineers, Army) 



ACOUSTIC WAVE HEIGHT INDICATOR 



American Bausch Anna Corporation 

 under contract to Bureau of Ships) 



MULTI-PROBE WAVE HEIGHT/SLOPE 

 SENSING SYSTEM 

 Woods Hole Oceanographlc InstJ 



■ Droppable Sea-Swell Buoy (General Electric) 



. (Glenn L. Martin 



E-5 



