Software for personal instruments

The main features of a PI (personal instrument) are discussed, and the requirements for PI software are derived. Then the performance of an original software package for PI is illustrated, showing how all requirements were satisfied. The software, coupled to a good commercial data acquisition system, features high-precision measurement and a high level of friendliness. It can be effectively employed in lab tests and for educational purposes. As far as the former are concerned, the software, associated with dedicated routines for special measurements, is a good basis for an automatic test station with extended help facilities. In this respect it was used to determine induction motor characteristics and model parameters. It has proved effective in educational applications, since it allows direct explanation of all capabilities offered by computer-based in instrumentation coupled with suitable A/D conversion hardware