Report: Development and Application of Ultra High Precision Angle Measurement Device

Expert:Masuda Tadashi, Professor

Inviter:Yang Li, Professor

Date and Time:2023.10.17, 10 am

Place: Chang’an Campus of NPU, Space power integrated laboratory building, meeting room at 2nd floor

Online Platform:Webex

Meeting Number: 2513 104 5346

Meeting Code: 20231017

Online Link:https://braia-npu.webex.com/braia-npu-sc/j.php?MTID=m5aaf8f8f05e7c21c044cd31df05c058c

Introduction to Expert:

Masuda Tadashi is the honorary professor at Shizuoka Institute of Science and Technology in Japan. During his university work, he engaged in research on ultra high precision correction methods for angle measuring instruments and the development of automatic machinery in the construction industry. His achievement is to propose a unique method for achieving ultra high precision calibration of rotary encoders without the use of high-precision benchmarks, and to develop and validate a calibration system. Afterwards, he devoted himself to the popularization of this technology and finally made this method the national standard for angle tracking in Japan (± 0.02 angle seconds), establishing the Japanese angle accuracy tracking system with this as the vertex. In addition, he has also been involved in the development of ultra-high precision angle sensors (± 0.1 angle seconds) for the radio telescope at the National Astronomical Observatory of Japan.

At present, his method has been adopted as a standard by many rotary encoder manufacturers, and 9 countries have also popularized the use of this method as a national standard. Recently, the world's highest level rotary encoder (± 0.036 angle seconds) has been developed using this technology. At the same time, he also developed robots related to the construction industry. He has been recognized for his research achievements by the Minister of Education, Culture, and Science of Japan, as well as the Japan Institute of Precision Engineering Award.

Hosted by Belt and Road Aerospace Innovation Alliance (BRAIA）

Organized by School of Astronautics, NPU