Abstract: This paper retrospected the invention and development on the differential resistance (elastic wire) type instruments in the world, and demonstrated in detail the research and development on this type instruments in China. Chinese technician’s improvement and innovation on this type instruments have illustrated in further, and the superiority and application of the differential resistance type instruments have been illustrated. At last, the author expounded the development direction on the differential resistance type instruments.

摘要： 回顾了差动电阻式仪器在国外的发明和应用，详细阐述了这种仪器在中国的研究发展和应用的过程，以及我国技术人员对差阻式仪器的改进及创新，说明了这种仪器的优越性和进一步应用的前景。最后，提出了研究改进的方向。