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科学研究、教学实验、生产实践中存在着大量的微弱交流信号需要检测与分析,这些微弱的电信号一般在微伏量级或更小,甚至为毫微伏的量级。若用一般的交流电压测试仪器进行测量,则灵敏度等指标远不能满足现代科学技术发展的需要。ND-301型多功能交流毫微伏测试仪是在本单位研制与生产多种微弱信号检测仪之后,最近推出的一种崭新的微弱信号
In scientific research, teaching experiments and production practice, there are a lot of weak AC signals that need to be detected and analyzed. These weak electrical signals are generally on the order of micro-volts or less, even on the order of nanovolts. If the general AC voltage test instrument for measurement, the sensitivity and other indicators can not meet the needs of the development of modern science and technology. ND-301 multi-function AC nano-volt tester is the unit in the development and production of a variety of weak signal detector, the recently introduced a new weak signal