Bubble Memory Recorder For EAVE-East Vehicle

The Marine Systems Engineering Laboratory has developed a mass data logging system that offers an alternative to the conventional cassette storage system and provides for the possibility of interactive manipulation of data.This alternative employs a microcomputer controlled magnetic bubble memory (MBM) device. The system was designed for use as a data recorder on the EAVE-East untethered submersible. The MBM was selected because it is non-volatile, has no mechanical moving parts, is transportable, and has random access capability. Resident in the MBM recorder is a file management system which allows the host computer to store data either serially or in various files according to data type or category The system supports up to 20 files, with each file having a maximum length of 6400 bytes (50 blocks)