一、前言随着我国社会主义建设事业和科学技术发展的需要,对仪器仪表的灵敏度和测量精度提出了更高的要求,为赶超世界先进水平和填补我国电表工业的空白,急需生产0.1级电磁系交直流两用.精密电表。多年来由于国內没有这种电表用的张丝材料,以致这种电表一直未能研制成功。这种电表具有结构简单、性能稳定、耐冲击、耐过载、耐震动、双光标、低消耗、 I. Preface As China’s socialist construction and development of science and technology needs, the sensitivity of the instrumentation and measurement accuracy put forward higher requirements, in order to catch up with the world advanced level and to fill the gaps in China’s meter industry, the urgent need to produce 0.1 Department of electromagnetic AC and DC. Precision meter. Over the years due to the absence of this kind of wire gauze used in China, the meter has not been successfully developed. This meter has a simple structure, stable performance, impact resistance, overload resistance, vibration, double cursor, low consumption,