Atmosphere monitoring and control for submarine life-support operations
Maintaining safe and stable atmospheric conditions is critical to the survivability, effectiveness, and wellbeing of submarine crews. Reliable monitoring and control of oxygen, carbon dioxide, carbon monoxide and other gases is essential to sustaining life-support systems and enabling informed decision-making during both routine operations and emergency scenarios.
As part of JFD's longstanding support to commercial and defence operations, atmosphere monitoring and control capability draws on more than 40 years of experience in gas management, monitoring and control in harsh subsea environments.
These atmosphere monitoring and control solutions integrate fixed, portable and emergency systems into a single, coordinated approach designed specifically for submarine life-support operations.
Proven submarine atmosphere monitoring capability
Our atmosphere monitoring capability is built on a long heritage of supporting complex underwater operations worldwide. Award-winning, high-accuracy intelligent gas analysis systems are used daily across global commercial and defence applications, providing trusted life-support assurance in demanding operational environments.
This experience underpins the development of robust systems engineered for accuracy, reliability and continuous performance within submarine compartments.
Integrated atmosphere monitoring and control solutions
Atmosphere monitoring and control systems are designed to support both normal operation and emergency response, providing timely, accurate information when conditions change or incidents occur.
Emergency Atmosphere Monitoring Systems
Emergency Atmosphere Monitoring In A Box (EAMIAB) is an emergency atmosphere monitoring system designed for installation within individual compartments. Once self-calibrated, the system provides an instant atmosphere reading, representing a significant improvement on legacy systems that can take up to 30 minutes.
This rapid response capability reduces the time emergency breathing systems are required, enhancing crew safety and comfort while preserving vital high-pressure air reserves.
Mission-critical carbon monoxide monitoring systems
Carbon monoxide presents a serious and potentially fatal risk if concentrations rise within a submarine. Mission-Critical Carbon Monoxide Monitoring (MCCMM) is a fixed monitoring system that provides continuous, real-time carbon monoxide measurement within submarine compartments.
Using high-accuracy non-dispersive infra-red (NDIR) sensing technology, the system enables detection of carbon monoxide at low levels. Data logging and storage support analysis and reporting, while the fully shock-tested design meets EMC and ESD electrical compliance requirements and vibration testing to NATO standards.
Senior survivor panel for atmosphere monitoring
The Senior Survivor Panel (SSP) automates many of the manual inputs traditionally required by the Senior Survivor to record and calculate atmospheric conditions in line with Guard Book requirements.
In emergency situations, this solution improves accuracy, reliability, and efficiency, delivering a significant safety enhancement. The system includes a portable unit that can be calibrated in situ and is capable of monitoring a variety of gases.
Mission-critical multi-gas atmosphere monitoring (MCAM)
Installed in strategic locations throughout the submarine, Mission-Critical Atmosphere Monitoring (MCAM) utilises precision sensing technology capable of monitoring up to six gases simultaneously, including oxygen (O₂), carbon dioxide (CO₂), carbon monoxide (CO), hydrogen (H₂) and refrigerant gas R134a.
MCAM is a fully interconnected, certified modular system tailored to individual submarine classes and designed to support future expansion. Features include an ergonomic human-machine interface, clear data visualisation, visual and audible alarms, user configurability, monitoring, logging and reporting functions, security protection and optional integration with the submarine platform management system.
Intelligent sensor systems for submarine atmosphere monitoring
The intelligent multifunction sensor unit (iMFSU) supports advanced atmosphere monitoring by enabling accurate gas sensing and integration within broader monitoring architectures. This contributes to comprehensive environmental awareness across submarine compartments.
Atmosphere monitoring and control plays a vital role in sustaining life-support, safety and operational effectiveness in submarine environments.
Annual Report 2025