Boots – shoes – and leggings
Patent
1978-08-16
1980-05-06
Krass, Errol A.
Boots, shoes, and leggings
9 8R, 73170R, 92172, 114326, 364556, G01F 2300, B63G 814
Patent
active
042020360
ABSTRACT:
A system for measuring ocean characteristics. The system includes a sensor assembly and an associated means to control the system buoyancy to achieve cyclic ascent and descent at controlled speeds, either along a mooring line or free-drifting. Buoyancy control is provided by a pump assembly including two rolling diaphragm-sealed, low friction displacement pistons driven by a high torque d.c. motor operated at low speed. There are four functional groups of data gathering instrumentation. The first group measures horizontal water transport, and includes sensors for current (flow velocity), system azimuth, system tilt, and vertical velocity. The second group provides a determination of salinity, and includes sensors for conductivity, temperature and pressure. The third group monitors conditions within the system, and includes sensors for internal temperature and humidity. The fourth group monitors conditions utilized in the buoyancy control, and includes sensors for pressure (depth and depth rate) and piston position. A programmed microprocessor configuration provides overall operational control for the system.
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Van Leer et al.; "The Cyclesonde: an Unattended Vertical Profiler for Scalar and Vector Quantities in the Upper Ocean"; Deep Sea Research, Permalon Press, 1974, vol. 21, pp. 385-400.
Bowditch Philip N.
Dahlen John M.
McKenna, Jr. John F.
Shillingford, Jr. John T.
Siraco Frank J.
Krass Errol A.
The Charles Stark Draper Laboratory Inc.
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