Development and Full-Scale Testing of Prototypes of Tsdss-M and MDM Digital Seafloor Seismic Stations Intended for Security Systems

The paper addresses experiments to assess whether seismic systems can be used for autonomous border surveillance on land and sea. Seismic systems as an integral part of border surveillance systems, especially maritime ones, should comply with strict performance requirements. The first-priority problem was to prepare appropriate domestic equipment and an experimental technique for seismic surveying on land and sea. When this problem was formulated, there was no suitable domestic broadband equipment. Fundamentally new technical solutions were employed to create prototypes of seismic modules of the SM-5, SM-6, and SM-3M types. On their basis, one- and three-component short-period and broadband of seismic sensor prototypes were developed, including the SM-5M, SM-6, TS-5, TS-6MSh, etc., which were used to create a prototype for a digital deep seafloor seismic station (TsDSS-M). Also, for transition zones, a seafloor seismic station was developed and tested, which is based on molecular electronic sensors that have achieved significant progress recently. The paper describes the prototypes of the TsDSS-M digital seafloor seismic station and MDM bottom seismic module for transition zones, both based on electrodynamic and molecular electronic sensors. The prototypes were tested on Lake Seliger. Shallow-water tests demonstrated the reliability and high performance of the prototypes; the desired characteristics proved to be appropriate. Importantly, TS-5 seismic modules are now manufactured at an industrial scale; this has solved the problem of import substitution in this area.