MM903同位素气体质谱仪的升级改造

The upgrading improvement on MM-903 isotope gas mass spectrometer -Computer, including new type electric-magnatic valve used and relative changes on its controlling electic route , has modified working environment of its hardwares and softwares, and increased /enhanced the intelligent function of CPU on the base of the present MS. The practical tests on criterion samples have indicated that MM-903 isotope GMS-CPU systerm works well and our improvement is effective.