Design and implementation of a temperature control system base on convenient DAQ

Data Acquisition Cards of usb interface have been made use in industry instead of PCI card owing to handy, computer resource no occupied and high speed , we employed usb 6009 for core building a hardware platform on temperature of dryness box, and compiled upper program with LabVIEW7.1 , to allocate PID module of NI Co. after we controlling the temperature of furnace and ruling the parameter on the system, The ideal parameters such as P, I, D were achieved. The control temperature system had stably and reliably run long period .Since the system can be rework to popularize to practice industrial control, it has higher practice value.