A Remote Release Device for Marine Mammal Electronic Tags
Abstract
This new technology aims to provide researchers with a safe and reliable method for retrieving and reusing data-logging tags deployed on marine mammals. The RRD and handheld controller use the internationally-accepted Argos wireless-protocol for line-of-sight communication. Once interrogated with a unique command, the RRD activates its release mechanism s electrically-degradable epoxy. The RRD is separated from its baseplate within 10 seconds of being activated. Once retrieved, the RRD can be refurbished with a new cartridge and baseplate for subsequent deployment of payload devices. The tasks completed in this period focused on building and testing the RRD and its system components, which helped to identify assembly tasks and production costs associated with manufacture. Custom-built electronics have been integrated into the hardware of the RRD and the handheld controller. While their functionality has been verified, these devices contain embedded processors and their native applications continue to be written and tested. Mechanical housings and fixtures for assembling the RRD s release mechanism have been iteratively developed and tested for applicable bond strength and release time. Lastly, the current form of the RRD is L: 4.2 x W: 2.5 H: 0.8 and was achieved using in-house vacuum casting techniques. In collaboration with Russ Andrews and the Alaska SeaLife Center, refinements to the design have been incorporated so that typical applications of this technology will be better served. Field trials are slated for deployment on free-ranging pinnipeds within the next 6 months.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 30, 2011
- Accession Number
- ADA598510
Entities
People
- Roger Hill