这是西德米哈尔策阿(R.Mihalcea)博士的研究论文。文章介绍了利用定量液体容积进行定位的工作原理,指出了这种定位装置具有结构紧凑、造价低,且定位精度高等优点。但也指出了这种定位装置有待进一步探讨的几个问题。文章通过分别对无泄漏的定位装置和有泄漏的定位装置结构的研究,提出了采用温度、压力、容积补偿的办法以减少泄漏量及提高定位精度。此文对进行气—液联动缸设计有一定参考价值。 This is a research paper by Dr. R. Mihalcea. This paper introduces the working principle of using the quantitative liquid volume for positioning, and points out that this positioning device has the advantages of compact structure, low cost and high positioning accuracy. However, several problems to be further explored in this positioning device are also pointed out. Through the research on the structure of non-leakage locating device and leakage locating device separately, the paper puts forward the method of using temperature, pressure and volume compensation to reduce the leakage and improve the positioning accuracy. This article has some reference value to gas-liquid linkage cylinder design.