The authors developed gyroscopic force sensor and gyro floor scale, design the application of two degrees of freedom gyro force measurement framework, internal and external loading system weighing, force measurement weighing solve key technology in the domestic first passed technical appraisal.
Traditional gyro framework to be able to become a force measurement weighing device, from the loading structure must address the following technical difficulties: trying to make the test load often force F on to work as always precession of the inner ring, an outer torque it produces My inner ring fixed coordinate system remains unchanged.
Use gyro gyro load weighing whole framework around the vertical axis Z kept precession, so inevitably exist between the supporting bearing friction. By the gyro precession orthogonal principle, acting on the Z axis of the outer ring will cause the inner friction torque Mzf deflection precession, and therefore must be designed outer gyro load friction torque feedback compensation system to continuously compensate instantaneously, so that the inner ring held in a horizontal state. The actual measurement process, the inner gyro frame with vertical Z axis to precess about the same time, always in a horizontal position to fluctuating up and down a small angle, which produces a friction torque measurement will be superimposed loads go.
Such structure is very important to hinge design loading mechanism, friction torque hinge generation is too large or is unstable, ranging from the impact the measurement accuracy, and thus will lose force gyroscopic function.
When gyroscopic force measuring device for weighing, you need to configure a mechanical lever amplification system.
Vertical Z-axis gyroscope constantly measuring the entire frame is rotated around the greater the higher the speed and load, it should be designed to effectively isolate the body motion of the rotary motion is not transmitted to the mechanical lever system to ensure test accuracy of static load transfer to load up the gyro.
