Calibration Parameters Revised Algorithm of Portable Test Instrument

The portable test instrument plays important role in military metrology and its quality values are assured by calibration.For the calibration of the portable test instrument,firstly this paper introduced the software and hardware of the portable test instrument;then proposed the revised algorithm to revise system error.Based on this work,the portable test instrument realized automatic calibration by RS-232 bus.Experiments show that the calibration efficiency is improved.