Heat Stress Monitor
Biomedical Engineering

image: Front view of heat stress monitor

Front view of heat stress monitor

image: Rear view of heat stress monitor

Rear view of heat stress monitor

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Heat stroke, a serious and sometimes fatal illness, can occur in individuals subjected to extreme heat and humidity without protection. For the U.S. Army Research Institute for Environmental Medicine, Southwest Research Institute (SwRI) engineers developed the world’s smallest environmental heat stress monitor (HSM) for use during military training exercises.

The HSM (U.S. Patent 6,111,501) is equipped with sensors to measure air temperature, wind speed, solar radiation, humidity, and barometric pressure.

Algorithms contained in the HSM combine environmental readings with programmed personal data to calculate optimum work and rest cycles and hourly water intake requirements for an individual.

This innovative device is now being used by an Australian mining company to monitor the health of workers removing gold and silver from deep shaft mines.

Related Terminology

heat stroke  • biomedical engineering  •  biomedical technology  • medical device  •  biotechnology  • environmental medicine  •  heat stress monitor  • solar radiation  •  air temperature  • wind speed, barometric pressure  •  environmental sensors  • medical device consultants


Keith Bartels, Ph.D., Staff Engineer, Sensor Systems & Nondestructive Evaluation (NDE) Technology, Mechanical Engineering

(210) 522-6062, kbartels@swri.org

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Southwest Research Institute® (SwRI®), headquartered in San Antonio, Texas, is a multidisciplinary, independent, nonprofit, applied engineering and physical sciences research and development organization with 9 technical divisions.