cDAC™ Controller and Data Acquisition The cDAC digital data acquisition and control unit coupled with DIMENSION™ software, gives you the power to perform the most demanding of tests with our Universal, Dynamic Testing Machines. Both are designed with the ease-of-use and reliability required for standard testing and the flexibilty and advanced capabilities required for research. DIMENSION™ Software Features: Profile builder gives ultimate flexibility to design and store custom testing routines Standard test library for quick and reliable testing to ASTM, AASHTO and CEN Standards Transducer database to store and manage your sensors Configurable waveform and summary data capture allows total control over the information gathered during a test Multi-lingual test screen shows a graphical view of all connected transducers and calculated values in real time Test data available in ExcelTM compatible fomat for user analysis cDAC™ Hardware Features: Provides a configurable design to meet your needs with up to 7 modules (max. 4 of each type) from the following per cDAC unit: Interface, Acquisition, Digital and Servo. Interface Module: 100Mbit/s Ethernet TCP/IP and UDP connection to PC provides for fast and robust communications RS232/422/485 serial port for connection to environmental chambers and other ancillary equipment USB port for direct data logging Atmel AT91SAM Smart ARM-based Micro-controller for high performance Servo Module: Dual 5kHz control loops per module 0.01 to 100Hz cycle frequency to meet all your testing needs. Digital on-the-y adjustment of all PID parameters Multichannel selectable feedback from any sensor (or sum of or difference between sensors) on any acquisition card Hardware function generator Bumpless transfer between control methods Texas instruments TMS320DSP digital signal processor 16-bit Analog Voltage (±10V and (0 to 10V) and Current (±40mA, (0 to 20)mA, and (4 to 20mA)control output for servo valve or other control device Digital Module: 4 x 24V opto-isolated digital inputs with 100mA sink capacity (each can be configured as counters) 4 x 24V opto-isolated digital outputs to drive auxiliary hydraulic/pneumatic solenoid valves with 1.6A drive capacity per channel (each can be configured as a PWM source) NXP LPC2148 ARM7TDMI-S based high-performance 32-bit RISC micro-controller Acquisition Module: Any combination of up to 8 sensors per module (load cells, LVDTs, RTDs, strain gauge bridges, pressure transducers, and many, many more) TEDS (Transducer Electronic Datasheet) sensors for plug and play measurement Synchronous acquisition of all sensor measurements from all modules to eliminate data-skew Multiple segment 5th order polynomial linearization of sensors for supreme accuracy 24-bit resolution on all channels 5kHz acquisition rate per channel Anti-alias filters to prevent high-frequency interference Auto-ranging ampliers with the following gain steps: 1/8, 1/4, ½, 1, 2, 4, 8, 16, 32, 64, 128 (0 to 10)V, 24V, and (0 to 20)mA power supplies for sensors