Angle control device for tunnel attack-angle mechanism

Abstract

The invention discloses an angle control device for a tunnel attack-angle mechanism, and solves a problem that there is no angle control device which can eliminate the mechanical wear of the attack-angle mechanism and an error caused by mechanical transmission. The device comprises a stay cord sensor which is disposed in an upper column room of a tunnel, wherein a cord pulling end of the stay cord sensor is fixed on a sliding block of the attack-angle mechanism, and the sliding block is fixedly connected with a bent knife of the attack-angle mechanism; and a measurement and control system which is electrically connected with the stay cord sensor. A driving mechanism of the attack-angle mechanism drives the sliding block to slide. When the sliding block slides, a stay cord of the stay cord sensor is enabled to extend or withdraw. The stay cord sensor outputs voltage data to the measurement and control system, and the measurement and control system obtains an attack angle value according to the received voltage data and a fitting attack angle voltage formula. A control device of the attack-angle mechanism controls the attack angle of the attack-angle mechanism according to the attack angle value.

Description

technical field [0001] The invention belongs to the technical field of measurement and control, in particular to an angle control device for a wind tunnel attack angle mechanism. Background technique [0002] In the wind tunnel test, the control of the angle of attack of the model is a very important basic technology. The angle of attack of the model is controlled by the transmission of the angle of attack mechanism, and there will be mechanical clearance during the transmission of the angle of attack mechanism. Too many times of operation of the angle of attack mechanism will lead to severe wear of the transmission parts, which will increase the transmission error in the transmission process. [0003] The traditional method of controlling the angle of attack of the model mainly uses a code disc or a potentiometer to collect and use it as control feedback, but neither of these two methods can eliminate the above-mentioned errors caused by mechanical wear and mechanical tran...

AI Technical Summary

Problems solved by technology

[0004] The invention provides an angle control device for a wind tunnel angle of attack mechanism, which solves the problem that there is no angle control device in the prior art that can eliminate the mechanical wear of the angle of attack mechanism and the error caused by mechanical transmission

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