Acquisition of displacement transducers via PCI
The number of applications with transducers has highly increased,
particularly in the automation and process control. The acquisition
of these signals with a PC-based solution provides the user the
advantages of an opened system: this one can directly acquire and
analyse signals and, if necessary, react to improper measurements. Addi-Data has developped a new measurement board for the PCI
bus, the board APCI-3701, for the acquisition of 8 to 16 displacement
transducers. The board can connect a lot of half and fullbridge
transducers with a resolution of 16 bits. The amplitude and frequency
supply (1 to 50 kHz) are adjusted by software. A library collects
the parameters of the supported sensors: the used sensors are
selected
per mouse click and the board adapts automatically on their properties.
The user dipose of following diagnostic functions: short-circuit
and break line recognition of sensor supply and signal line.
The board starts the acquisition via external or software trigger
or
via timer. The data is read through a 32-bit DMA or a 32-bit
data access directly in the PC memory. The board generates
an interrupt
precisely after a predefined number of measured data.
16 additional I/O channels with isolation can process 24V digital
signals. The connecting box is equipped with 5 pin female sockets:
therefore, the sensors can be directly connected.
Software support includes standard drivers for Windows XP/2000/NT
4.0 and Linux as well as programming examples for C, VB ...
(more
info...)
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