随着我国科学技术的发展和生产部门的需要,越来越多地要求迅速开展非电量的电测量工作。国产DYJ-4型自动平衡应变记录仪(暂定型号)正是为此设计制造的。这种仪器的使用范围相当广泛,它通过电阻应变传感器,可以对各种机械、航空、船舶、机车、桥梁、铁道、土木建筑等工程 With the development of our country’s science and technology and the needs of the production sector, more and more demands are being made for the rapid development of non-electricity electricity measurement. Domestic DYJ-4-type automatic balance strain recorder (tentative model) is designed and manufactured. This instrument is used in a wide range of areas, it through the resistance strain sensor, you can on a variety of machinery, aviation, ships, locomotives, bridges, railways, civil engineering and other projects