DT16B-DT8B

DT16B is a 16-channel ultrasonic pulser/receiver board. Each boardholds up to 16 channels. A DT16B contains 16 dedicated pulsers and amultiplexer. A PCIPR300M pulser/receiver card or a PCIUT3100M card fromUS Ultratek is needed to control DT16B through one ribbon cable and twocoax cables. The controllable parameters include pulser channel number,receiver channel number, damping resistance, mode, pulse width, andpulse voltage.

With the help of the receiver on a PCIPR300Mcard or a PCIUT3100M card, the signal from the multiplexer can beprocessed as specified by the user. The receiver features high passfilters, low pass filters, rectifiers, gain, and DC offset. Therectifiers, gain, and DC offset are easily and quickly changeable atany time, which is very important for high speed data acquisition when fast channel switching is required.

Windows dynamic libraries for Microsoft C/C++,Visual Basic, and LabView are provided to let the users develop theirown software easily. With these libraries, the user can set up anyfiring sequence along with different gains, rectifications, and DCoffsets for each channel.

DT16B installs into the computer's PCI slot.Multiple DT16B cards can be installed in a computer to build a systemup to 256 channels. Each board has 16 pulser cables and 16 receivercables. The cables can be equipped with BNC connectors, Lemo00connectors, or SMB connectors or small profile Burndy connectors. DT8Bis half the size of DT16B; it contains 8 deticated pulsers and a MUX.The DT8B is designed for low-cost applications.

Applications include flaw mapping, thicknessmapping, material evaluation and characterization, and pipeline girthweld inspections.