Naval Submarine Medical Research Laboratory

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The Naval Submarine Medical Research Laboratory (NSMRL) is located on the New London Submarine Base in Groton, Connecticut. The laboratory's mission is to protect the health and enhance the performance of our War Fighters through focused submarine, diving, and surface research solutions.

1 History and Overview
2 Facilities
3 Library
4 Other external links

[edit] History and Overview

The United States Submarine Service has a long and proud tradition of developing and operating with leading edge technologies. The Naval Submarine Medical Research Laboratory is a major contributor to integrating these technologies into submarine crew operations. Established in World War II to conduct mission critical studies in night vision, sonar sound discrimination, and personnel selection, NSMRL continues to serve the fleet by taking the lead in undersea human factors, Sensory analysis, and operational medicine.

NSMRL is at the forefront of operational undersea research and development, as it has been for over 50 years. Its achievements include:

Sea Lab 1 habitat project
Disabled Submarine Escape and Rescue project
"Rig-for-red" viewing
Development of the International Orange color (Air-Sea Rescue Red)
Studies of nitrogen narcosis
Development of saturation diving and decompression tables
Performance based screening of color vision
Personnel screening and assessment for enclosed environments
Effects of atmospheric constituents on health and performance in enclosed environments
Underwater acoustic signal discrimination and classification
Bioeffects of low frequency underwater sound

NSMRL is located in Groton, Connecticut, near the juncture of the Thames River and Long Island Sound. Arrangements for system validation are conveniently made through Submarine School New London; sea trials with research products are coordinated through the Submarine Base New London and the Naval Undersea Warfare Center in Newport, RI.

Ref History: NSMRL web site: History

[edit] Facilities

NSMRL Unique Physical Facilities
Two Hyperbaric Chambers - Saturation and Hypobaric Capability
1000 m3 Anechoic Chamber
145 m3 Reverberant Chamber
Ten Sound proof Audio Testing Booths
Vision and Auditory Research Suites
Technical Library & Graphics Studio
Waterfront Access (Submarines and Diving)
Diving Work Boat

The NSMRL auditory laboratory includes a large, 1000 m3 Anechoic Chamber. The suspended cable floor and fiberglass wedges provide an "echo-free" environment that is essential for efforts on spatialized auditory displays and transducer evaluation. Additionally, there are ten fully instrumented soundproof booths and a reverberant room. These facilities are integral to the work on human-machine interfaces, combat systems displays, hearing conservation, audio signal enhancement, noise reduction techniques, and diver hearing.

The laboratory has a 142 m3 enclosed atmosphere testing environment and facilities for cardiopulmonary and metabolic workload assessment. Close collaboration on several projects has been maintained with the Royal Navy of the United Kingdom and its facilities at Alverstoke, England.

NSMRL's diving research program is supported by a saturation diving chamber certified to pressures simulating 350 fsw and a fully instrumented hyperbaric treatment chamber. Both chambers are capable of supporting multi-diver teams and associated medical, physiological, and exercise equipment.

The laboratory also maintains an enclosed 25-foot Boston Whaler equipped with GPS and radar, to support open water diving research.

Ref: NSMRL web site: Facilities