State-of-the-art digital data acquisition system

Conference · Tue Nov 01 00:00:00 EST 1988

OSTI ID:6475868

Scudiere, M B; Adams, D J; Beshears, D L; Capps, G J; Jordan, J K; Napier, R W; Ott, G W; White, C P; Nodine, R N; Todd, R A

The torpedo data acquisition (TORDAC) system is a stand-alone, transportable data acquisition system, packaged to fit into a torpedo-sized vehicle, and is designed to record a mix of user-selectable analog and digital data. TORDAC calibrates, conditions, digitizes, and records multiple channels of analog voltage outputs generated by arrays of vehicle sensors and it also records digital data streams from on-board digital processors. The maximum write speed of the system is 107 Mb/s (one hour duration) which provides a recordable analog bandwidth in excess of 1800 kHz with 96-dB resolution. Configuration of analog signal inputs is flexible; a typical configuration will record 60 wide-band channels (sampled at 100 kHz with a 16-bit analog-to-digital (A/D) converter) and 56 narrow-band channels (sampled at 1.5 kHz with a 12-bit A/D converter). TORDAC also generates programmable output signals (to control internal or external functions) based on the status of inputs being recorded. Operator control of the system for setup, checkout, playback, data validation, and data reduction is performed on networked computer workstations. Dedicated hardware is provided to reconstitute all analog voltage waveforms in real time (from recorded digitized data) to permit quick-look data validation. 14 figs., 1 tab.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 6475868
• Report Number(s): CONF-881120-20; ON: DE89005336
• Resource Relation: Conference: ASME winter annual meeting, Chicago, IL, USA, 28 Nov 1988; Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
42 ENGINEERING
DATA ACQUISITION SYSTEMS
DESIGN
WEAPONS
PERFORMANCE TESTING
COMPUTER ARCHITECTURE
FLOWSHEETS
REMOTE SENSING
UNDERWATER OPERATIONS
DIAGRAMS
TESTING
990220* - Computers
Computerized Models
& Computer Programs- (1987-1989)
420200 - Engineering- Facilities
Equipment
& Techniques