Data acquisition (DAQ), it is to point to to be measured from the sensor and other equipment such as analog and digital tested unit automatically pick non-electric quantity or power signals, sent to the upper machine is analyzed, the treatment.

Data acquisition system is based on computer or other special combined test platform of measuring software and hardware product to realize flexible, user-defined measuring system.

The data acquisition card, namely realize data acquisition (DAQ) function expansion card, can the computer via USB, PXI, PCI, PCI Express, firewire (1394), PCMCIA, Compact Flash, 485 ISA, Ethernet, 232, various wireless network etc bus access personal computer.