Research of an Electric Laser System Based on the Non-diffracting Beam

A novel electronic laser system is proposed. Based on the principle of the non-diffracting beam, a new method for measuring attitude angle has been developed in this paper, in combination with image processing technology. The system constitution and the measuring principle of the electronic laser system are introduced. As the non-diffracting beam is composed of Bessel fringe ring, the anti-interference ability and the measurement sensitivity is greatly improved by center location of the non-diffracting beam in digital image processing technology, compared with barycenter method. The electronic laser system is applicable to attitude angle measurement of the tunnel boring machine in tunnel construction and other similar occasions.