采用了虚拟仪表技术，对计数脉冲进行自适应修正。
Adopted the virtual instrument technology, the count pulse is revised by self-tuning.
且控制系统一般采用模拟仪表构成，在压缩机的喘振线发生变化时不能及时修正，对非线性的喘振线不能较好的实施控制。
Even, its control system commonly consists of simulation instrument, can't modify the changing surge curve of compressor in time and can't control nonlinear surge curve preferably.
讨论了高准确度测试仪表的质量指标， 并分析了数字式智能仪表的结构、静态特性修正和测试误差修正。
In order to demarcate the other testing instrument the paper analyzes a digital intelligent instrumentation including its constitution , static characteristic revision and temperature error revision.
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