Survival rafts are equipped with sophisticated water sensors designed to activate the compressed air cylinder, inflating the raft automatically upon immersion in water, whether it be the sea, a lake, or a river. To safeguard against inadvertent inflation, a reed switch is strategically incorporated into the control circuit of the raft, activated by a magnet positioned externally on the case.
Upon deployment, the survival rafts must be removed from their cases, effectively separating the magnet from the reed switch. This action triggers the water sensor and activates the homing beacon,
ensuring swift and effective deployment in emergency situations. Similarly, reed switches play a vital role in emergency locator transmitters (ELTs), preventing transmission while the unit is enclosed. In ELTs, a magnet placed within the cover’s pocket interacts with a reed switch housed inside the transmitter, maintaining transmission suppression as long as the unit remains ensconced. This simple yet effective mechanism enhances safety by preventing false alarms and conserving battery life until the transmitter is genuinely needed.
The selection of normally open or normally closed reed switches is contingent upon the specific requirements of the control circuit logic, ensuring seamless integration and optimal functionality within the broader emergency response system. By leveraging the inherent properties of magnets and reed switches, these critical safety mechanisms enhance the reliability and effectiveness of survival rafts and ELTs, providing peace of mind to individuals traversing challenging environments.
🧰 Application Classification
Applications are classified as Position Sensing, Pulse Counting, Electromagnetic or Relay, Temperature Sensing or Magnet Biasing types. This application is classified as follows and the link gives more information on best practices to help select the most suitable AT band and matching magnet.
✅ Recommended Products
The Reed Switches and Sensors used in such applications need to be robust, durable and efficient in meeting a high life expectancy. Our engineers work hard in life testing our products under various conditions, and our intention is to ensure end product durability and life. Although we wouldn’t want to restrict any of our products for use in only certain applications, the recommended products for use in this application are listed below.
