Based on the construction and principle of micromachined gyroscope,the frequency of gyroscope output signal was derived which was depended on the angle between sensitivity axis of gyroscope and deflexion direction of rotating carrier,and then the relations between the rotating carrier spin frequency and the frequency of the gyroscope output signal is obtained.

By the kinematic analysis of flow,and the analysis of drive moment and resistance moment,the rotating speed expression of self-rotating twisted tape was deduced.

This paper take the self-rotating twisted tape as the research object, the goal lies in seeking an enhanced component ,it may enhanced heat transfer and removing/preventing foul on line , low cost, easy installation and removal , simple manufacturing processing, and has the good work effect and the practical application value.

The self-rotating twisted tape inserted heat exchanger tubes can enhance heat transfer and prevent fouling on-line.