The Guizhou Aerospace Institute for Metrology and Measurement Technology, based in Guiyang Economic Development Zone (GETDZ) in Guiyang, capital of Southwest China's Guizhou province, has successfully developed a new type of dynamic torque calibration device, the first such device in China to generate dynamic torque excitation using the braking principle.
Since there is no precedent for such calibration devices in China, the aerospace test team started carrying out simulation research in 2019, which was followed by a three-dimensional design, component procurement and measurement method research in 2020. In 2021, the processing, assembly and commissioning of device parts were completed.
After more than two years of development, the device has made significant breakthroughs in key technologies, including angular acceleration measurement and accurate control of calibration torque, and it can provide accurate dynamic torque parameters for the dynamic torque sensor. On Nov 29, the project passed review by an expert group following an on-site demonstration test by the project leader.
Jin Ran, a senior engineer of aerospace testing at the company, said that the successful development of the brake-type dynamic torque calibration device fills a technical gap in the industry in China.
The dynamic torque sensor is used in the dynamic performance testing of products related to automobiles, ships, and aerospace, among others, Jin said. The device generates dynamic torque based on the braking principle and the components it uses are more mature, he added.