Structural Health Monitoring System (SHMS)

SHMS is the airborne portion of SEI’s Health and Usage Monitoring System (HUMS). It consists of a Data Acquisition and Processing Unit (DAPU), a Data Storage Unit (DSU), and an optional Control/Display Unit (CDU). The DAPU has analog, discrete, and strain gauge inputs, discrete outputs, as well as RS-422 and ARINC 429 data buses. The DSU has 128 Mb of non-volatile memory, expandable to 256 Mb. The CDU has 16 keys and a 2 line, 16 character display, dimmable along with aircraft instruments. The SHMS low power consumption, light weight, and small size allow for easy aircraft installation.