Navy Technology Transfer Navy Technology Transfer

Oceanography

Active Heating System for Underwater Divers

Naval Surface Warfare Center, Panama City Division

Naval Surface Warfare Center, Panama City Division has developed a heating system for underwater divers that can generate heat within multiple areas of a wetsuit such as gloves and boots. The invention uses material particles that can generate heat in an exothermic reaction in the presence of oxygen. The particles are maintained at selected areas of the wetsuit and heat is generated when a source of oxygen gas is joined to the selected area.


Adaptive Ecosystem Climatology

Naval Research Laboratory

The Adaptive Ecosystem Climatology (AEC) is a system for rapidly merging oceanographic observations with numerical simulations to provide an online decision-support tool (with analysis and visualization capabilities) for ecological forecasting. The Naval Research Laboratory detachment at Stennis Space Center has developed the AEC to provide a flexible tool for eco-forecasting applications. The AEC melds observations collected by oceanographers, amateur observers, e.g., boaters, fishermen, beachgoers, students, crowdsourcing, Earth Observation (EO) satellites, archived in situ data, and output from a state-of-the-art, data assimilative, coupled bio-optical-physical ocean model system. The AEC mitigates the shortcomings of the components and combines their strengths to enhance decision-making activities for end-user organizations. Using the visualization and analysis tools available on the AEC portal, the satellite and model climatologies can be displayed and manipulated, and the data files can be downloaded by users, for direct input into external management models, such as ecosystem, oil trajectory, or fisheries models.


Automated Underwater Vehicle Position Estimation

Naval Research Laboratory

Naval Research Laboratory (NRL) has developed an underwater vehicle simulation tool utilizing four-dimensional ocean current forecast interpolation to dramatically improve the prediction of an underwater vessel’s position and trajectory. The innovative four-dimensional interpolation of non-regular ocean current forecast data provides math and data access for maximizing processing speed (>100x real-time) as well as handling large forecast data sets (>1
gigabit). The four-dimensional interpolation technique compensates for simulation/forecast errors by using vehicle reported positions from the ocean forecast current, all the while providing a very fast motion model for underwater gliders. NRL’s underwater vehicle simulation overcomes pitfalls found in existing position estimation technologies. For instance, existing systems using global positioning systems require a vehicle to surface periodically which poses a potential navigation hazard and subjects a vehicle to faster currents near the surface. Inertial systems are ineffective without Doppler velocity logs, whose ranges can be limited for deep ocean operation unless the vehicle is close to the ocean floor. Ultra-Short Baseline systems are untenable tracking options for long deployments.


COAMPS-TC Tropical Cyclone Prediction System

Naval Research Laboratory

The Coupled Ocean/Atmospheric Mesoscale Prediction System for Tropical Cyclones (COAMPS-TC) was developed by the Marine Meteorology Division at the Naval Research Laboratory and is one of the leading tropical cyclone prediction models in the world. The complete system utilizes data quality control, analysis, initialization, and atmosphere and ocean model components to predict tropical cyclone track, intensity, and structure. Model predictions from COAMPS-TC are relied on heavily by forecasters at the Department of Defense Joint Typhoon Warning Center and National Oceanic and Atmospheric Administration National Hurricane Center. The technology helps ensure warfighters, their families, and the public are made aware of an impending tropical cyclone at the earliest possible moment, enabling a swift, proactive response to threats and minimizing its potentially catastrophic impact.


Fiber-Optic Temperature Sensor

Naval Undersea Warfare Center, Division Newport

This patented fiber optic temperature sensor measures temperature profiles on a near-continuous basis with a spatial resolution of a half meter and a standard deviation of 0.2 °C providing temperature profile measurements critical to proper analysis of at-sea propagation for sonar performance prediction, accuracy of bathymetric surveys from wide beam swath mapping systems, and remote sensing.


Harness Assembly for Use in Underwater Operations

Naval Surface Warfare Center, Panama City Division

Naval Surface Warfare Center, Panama City Division has developed a harness assembly for
recovery of objects used in exercise and training scenarios that are deployed underwater.
Since these objects are often expensive and carry data, the devices need to be recovered
immediately. Currently they are recovered by divers, whose operations are limited to 140
feet, or other costly auto-recovery system operations. This device allows a trained marine
mammal (e.g., sea lion) to carry and couple a recovering tether to an object deployed underwater.


Hull-Mounted Line Retrieval and Release System

Naval Surface Warfare Center, Panama City Division

Naval Surface Warfare Center, Panama City Division has developed a series of line retrieve-
release systems for mounting on the bow of an unmanned underwater vehicle, unmanned surface vehicle, or other watercraft. This device facilitates the easy retrieval and release of floating lines; such as a tow rope or cable floating near the surface. The invention can be particularly useful for enabling an autonomous vehicle to recover a tow line during vehicle recovery operations.


Pipeline Intrusion Detection

Naval Research Laboratory

Naval Research Laboratory (NRL) researchers have developed an intrusion detection system
for undersea pipelines that detect intruding objects as well as leakage effects from the
pipelines. Existing detection systems attempt to fully maintain the security and physical
integrity of pipelines. However, intrusions by undersea vehicles, underwater robots, divers,
diver delivery vehicles, directed or intense sound waves, or leaking fluid warrants the
need for a reliable, continual monitoring system that is able to detect objects or disturbances
in proximity to the pipeline. The innovative NRL intrusion detection system utilizes
low-frequency structure-guided acoustic waves for detecting the intrusion since the waves
propagate great distances without suffering geometrical signal attenuation. As a result,
these waves can excite resonant characteristics in intruding objects that are a few wavelengths
long or contain very compressible substances such as air.


Reducing Hydrostatic Load Imbalances in a Diver's Open-Circuit Breathing Apparatus

Naval Surface Warfare Center, Panama City Division

Naval Surface Warfare Center, Panama City Division has developed a system that reduces hydrostatic imbalances acting on the diaphragm of a diver’s open-circuit breathing apparatus regulator. The system applies a flexing force to the diaphragm based on the position of the diver’s head relative to gravity when the mouthpiece is in the diver’s mouth. The system is realized by a simple mechanical pendulum assembly attached to the regulator.


Submersible Hand Warmer

Naval Surface Warfare Center, Panama City Division

Naval Surface Warfare Center, Panama City Division has developed a submersible hand warmer to warm a diver’s gloved hands. The apparatus includes a heating component, a battery, a housing which provides structural support, insulation that slows the loss of heat to cold water, and a controller that controls the rate of energy consumed.


Testing System for Self-Contained Breathing Apparatus Regulator

Naval Surface Warfare Center, Panama City Division

Naval Surface Warfare Center, Panama City Division has developed a simple device to perform mandatory testing of emergency self-contained breathing apparatus (SCBA) regulators without the need to sanitize equipment after testing. The invention features a manually operated plunger designed to simulate inhalation and exhalation of a magnitude appropriate to test SCBA regulator devices. A variety of pressure gauges or even a simple diaphragm device can be used to ensure the positive and vacuum pressures generated are within specifications for testing a given regulator.