Development of characteristics measurement system for the micro-wall of flexible joints

Characteristics of the micro-wall of flexible joints seriously impact the performance of gyro. Hence, measurements of these characteristics become very important. The present study carries out a system to measure the characteristics, including the stiffness and thickness, of the micro-wall of flexible joints. The force sensor deemed as a core component is mainly expounded in the paper. It is developed based on the principle of resistance strain gauge and good performance is shown on measuring the stiffness and the thickness. The measurement accuracy is calculated though repeated experiments and measurement theory and results are elaborated. The measurement results help to reveal the rule of structural design so as to enhance the performance of gyro. Finally, some improvements of this measurement system are proposed for further applications.