Against the limitation of tearing nodes that must be accessible in analog circuit diagnosis based on tearing technology, the method of virtual accessible testing nodes was presented.
针对网络撕裂方法诊断模拟电路故障过程中撕裂节点必须是可及节点的限制，提出了虚拟可及测试节点的方法。
An ect (Electronic Current Transducer) calibration system is designed based on virtual instrument technology to test the analog output of high-precision ect.
根据测量用电子式电流互感器(ect)的校验要求，研制了一种基于虚拟仪器的ECT模拟输出校验系统。
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