THE METER. 
In I960, tue Orrrce or Navat RESEARCH AGREED 
TO SUPPORT THE CONSTRUCTION AND INSTALLATION OF A 
SERIES OF CABLE CONNECTED CURRENT METERS, DESIGNED TO 
GIVE CURRENT SPEED, AND ULTIMATELY DIRECTION, TO RE- 
CORDERS PLACED ON THEIR TrxAsS TOWER RESEARCH PLATFORM 
ON PLANTAGENET Bank, BermMupA, THIS TOWER, CALLED 
"Arcus Isnano", Is SITUATED on THE Bank, In I94 FEET 
OF WATER, ABOUT 25 MILES FROM DeRMUDA. ITS LOCATION 
IS sHown In Froure I, AT THE TIP OF THE ARROW. 
THE FIRST METERS INSTALLED WERE SAVONIUS ROTOR 
SPEED UNITS AT 200 Awd 5OO FATHOMS, CONNECTED TO ARGUS 
ISLAND BY A TWO CONDUCTOR PLASTIC INSULATED CABLE WITH 
SEA RETURN AND A THREE CONDUCTOR DOUBLE ARMORED CABLE 
RESPECTIVELY. POWER WAS PROVIDED FROM THE SURFACE TO 
LIGHT A GRAIN OF WHEAT BULB WITH NEAR INFINITE LIFE 
AT RATED VOLTAGE. THE SPEED SIGNAL WAS GENERATED WHEN 
THE LIGHT FROM THE BULB, FALLING ON A PHOTOSENSITIVE 
DEVICE, WAS INTERRUPTED BY A SEGMENTED SKIRT ON THE 
Savonrtus Rotor, THIS IS, IN ESSENCE, THE PHOTO ELECTRIC 
PICKOFF DEVELOPED IN Wit. RicuARpson's tas AT WHOI. A 
CLEAR "cGo-no-co" SIGNAL RESULTED, WHICH WAS EXTREMELY 
DEPENDABLE AND READABLE EVEN THROUGH A HIGH LEVEL OF 
ELECTRONIC NOISE FROM THE RECORDER OR CABLE. 
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