Aircraft Data System (ADS) Description

Distributed data acquisition boxes acquire data and a record once per second via ethernet to a central computer which records the data to Exabyte. Each box is kept in time synch to the nearest 100 microseconds via an IRIG-B network. Quickly adaptable to new instruments/interfaces.

Each box can sample:

• 64 Analog channels up to 10K samples per second (sps)
• 64 bits of Digital and/or counter
• 8 Serial ports, RS-232 and RS-422
• 3 PMS-1D probes
• 2 PMS-2D probes
• ARINC 429
• Synchro

Two DSMs are shown; the top is open; the bottom shows front LCD display.

NRL P3 ADS rack with data server computer.

Aircraft data acquisition architecture, with future satellite ground communications