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ANIPC: Multi Actuator Control Software/PC

The ANCO ANIPC 100-800 (1-8 actuator) controllers are flexible digital controllers for general testing applications used to control multiple actuators during quasi static and lower frequency dynamic testing.  ANIPC can control from 1 to 8 actuators independently and simultaneously, while sampling up to 128 channels of data.  ANIPC is an open loop controller in that displacement or force feedback from the actuators is measured but does not change the output drive signals.  The addition of the optional pseudo dynamic testing module closes the loop during such testing at low frequency.

The large screen, multi-window graphic user interface (GUI) allows viewing of all channels and quick adjustment of any test parameters.  The interface provides guided test set-up.  The set-up software includes actuator operating parameters and safety, drive signal definition, calibration factors, test annotation, and run sequencing or block cycling.  Each user defined set-ups can be saved, recalled, modified and archived.  All data can be exported to other applications.

ANIPC is a PC-based, ANCO written Virtual Instrument (VI) using  which produces drive signals and acquires data using National Instruments hardware.

The ANIPC hardware and software is specified below and allows the following functions:

• Pentium IV based with National Instruments/LabVIEW hardware/software,
• 32-128 Channel ADC, 16 Channel DAC (16 bit),
• Data acquisition rate up to 5000 samples per second per channel,
• Generation of simultaneous actuator control signals including sine tests, offset sine tests, and ramping to static loads using signal generator definition window.
• Ability to import user defined time histories or internally generated spectrum compatible earthquake traces (see ANCO SPECTIME)
• Plotting of force vs. time, displacement vs. time, and force vs. displacement
• Fourier Transform computation and plotting
• Individual and independent operation of actuators
• Additional processing of input signals: +, -, x, /, and trigonometric functions
• Import and export of data in ASCII or EXCEL type formats
• Display of a run-time window during the test, which provides access to the various parameters and user controls
• The run-time window remains active and accessible until the operator elects to end the process or until a predefined test event occurs

Optional Pseudo Dynamic Testing closed loop module:

• · Force and displacement feedback used to modify drive history
• · Ability to enter up to a 20 DOF structural model
• · Structural solution times allowing testing at a rate up to 0.01 of real time with typical earthquake excitation.

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