Advances and key techniques of round inductosyn: a systematic review

Purpose As a high-precision angular displacement sensor, the round inductosyn has great application prospects in the field of angle measurement. The purpose of this paper is to explore the latest research advancements in the key technologies of the round inductosyn. It also aims to analyze the current challenges faced by induction synchronizers through a literature review. This paper holds constructive significance for the research on inductosyn and other inductive sensors. Design/methodology/approach In this study, a modular approach is adopted. The key technologies of the round inductosyn are classified into signal processing and angle calculation, testing, establishment of error models and compensation. Eventually, a systematic review for each module is conducted. Findings This paper comprehensively overviews the technologies related to the round inductosyn and consolidates the latest research insights. Additionally, the future development trends are discussed, which offer directions for the development of inductosyn. Originality/value This paper comprehensively reviews the key technologies and research progress of the round inductosyn. Through extensive literature analysis, an integrated angle-measuring device based on the inductosyn has been decided to be designed. Currently, research on it has been initiated.