In this paper, general situation of the development about torque transducers is briefly introduced, and the advantage and disadvantage of all kinds of torque transducers are compared, it introduces fully about the up to date torque transducers, some key technology and the research hotspot are discussed at the same time.

The Application of LabVIEW in Torque and Rev Measured System;

To study the effects of moment-rotation characteristics of connections and load magnitude on the behavior of composite frames, nonlinear finite element method is presented considering the effects of the moment-rotation characteristics of beam-to-column connections, composite action of slab and geometric nonlinearity.

Using the three-column subassemblage model, the governing equations for determining the effective length factor (μ-factor) of columns in sway composite frames with semi-rigid connections are derived, which consider the effects of the nonlinear moment-rotation characteristics of beam-to-column connections and composite action of slab.

To study the effects of high temperatures on the moment-rotation relations of concrete-filled steel tube to steel beam connections,the nonlinear finite element method(FEM)analysis on the composite connec- tions at high temperatures is carried out by ABAQUS software.