The V545 is a generalized- DSP-based sinewave processor intended for both simulation and acquisition of LVDTs, RVDTs, synchros, and resolvers. 24 generalized, isolated channels are provided. Each channel can be a signal source or a measurement input. Users can program any desired relationship between input and output channels, allowing simulation and measurement of a wide range of inductive transducers, using internal or external excitation.
Per-channel features include true RMS AC measurement, frequency measurement, programmable phase shift, and a versatile phase-sensitive detector.
Plugin transformers allow optional voltage input/output ranges. Software transformer ID is provided.
FUNCTION | 24-channel LVDT/synchro simulator |
DEVICE TYPE | 16-bit VME register-based slave: A24:A16:D16; Implements 1024 16-bit registers at switch selectable addresses in the VME 16 or 24 bit addressing spaces |
I/O CHANNELS | 24, transformer isolated, programmable input/output Nominal 100 ohm output impedance with 1:1 transformers |
RANGES | ± 10.24 volts peak using 1:1 transformers ± 54.27 volts peak using 5.3:1 transformers |
RESOLUTION | 16 bits |
SAMPLE RATE | 250 ksps/channel |
FREQUENCY RANGE | 250 Hz to 20 KHz |
OPERATING TEMPERATURE | 0 to 60°C; extended MIL/COTS ranges available |
CALIBRATION INTERVAL | Two years |
POWER | Standard VME supplies : +5 volts, 500 mA max +12 volts, 2 A max -12 volts, 2 A max |
CONNECTORS | Two female D25 connectors One female D9 connector |
INDICATORS | LEDs indicate VME access, CPU activity, error conditions Additional LED is user programmable |
PACKAGING | 6U single-wide VME module |
CONFORMANCE | ANSI/VITA 1-1994 (R2002) VMEbus spec; does not support byte writes |
VOLTAGE GENERATION ACCURACY | ± 0.50% full scale at 300 Hz to 500 Hz |
RMS VOLTAGE MEASUREMENT ACCURACY | ± 1% full scale at 300 Hz to 500 Hz |
FREQUENCY MEASUREMENT ACCURACY | 0.05% |
FREQUENCY GENERATION ACCURACY | 0.05% |
SYNCHRO/RESOLVER ACQUISITION ACCURACY | ± 0.2 degrees at 300 Hz to 500 Hz, with dash-6 transformers |
SYNCHRO/RESOLVER SIMULATION ACCURACY | ± 0.2 degrees at 300 Hz to 500 Hz, with dash-6 transformers |
LOGIC I/O INPUTS | Four TTL/CMOS/contact inputs on D9 connector Pullup 1k-Ohm to 3.3V 0/5V Max |
LOGIC I/O OUTPUTS | Two open-drain outputs on D9 connector 100mA / 24V / 0.35W max |
Block Diagram: V545 synchro/LVDT simulation/acquisition module
V545-1: 24-channel VME synchro/LVDT simulation/acquisition module with 1:1 transformers
V545-4: 24-channel VME synchro/LVDT simulation/acquisition module with 3.7:1 transformers
V545-6: 24-channel VME synchro/LVDT simulation/acquisition module with 5.3:1 transformers
Additional transformers can be purchased to replace supplied transformers. Factory recalibration is recommended if transformers are replaced.