Laser Velocimeter (autocovariance) Buffer InterfaceU.S. National Aeronautics and Space Administration, Scientific and Technical Information Branch, 1981 - Lasers - 20 pages |
Common terms and phrases
1.0-MHz output 16 BITS acquisition time clock arrival-time measurement circuit block diagram circuit coincidence mode Clemmons COINCIDENCE APERTURE COINCIDENCE CIRCUIT coincidence requirement Command/status COMPUTER INTERFACE CIRCUIT computer interface section Computer to LVABI conditional sampling control and computer control circuit CONTROL CYCLE CONTROL F. F. CONTROL FLIP-FLOP COUNT CONTROL COUNTER A CONTROL COUNTER B COUNTING data acquisition channels data acquisition cycle data acquisition mode data transfers data word data-valid pulse FLOW ANGLE flow field halt and zero helicopter rotor high-speed burst counter input/output integrated circuits inter arrival-time interarrival interarrival-time measurement circuit Langley Research Center laser velocimeter autocovariance laser velocimeter data laser velocimeter high-speed LOAD CY CNT-QA LV COUNTER LV ENABLE LVABI to computer MANTISSA measurement circuit coincidence memory address minicomputer msec NASA noncoincidence mode operating OUTPUT CONTROL power spectral density shown in figure system control VALID velocimeter high-speed burst velocity data written into memory Δι