Numerical calculation method of a type of curved reflector with linear optical amplification

A new linear amplification optical path design is proposed which can raise the liquid level detection resolution through amplifying linearly the small displacement of liquid level to light-spot displacement of photoelectric detector. The numerical calculation method for the linear amplification curvilinear function expression of the curved reflector is presented, and simulation research on how the variations of variable parameters affect detection error and linearity of linear amplification curve is made. The experiment results indicate that the designed curved reflector can achieve linear amplification function and the detection resolution of the laser triangulation liquid detection system can be enhanced effectively with less nonlinearity error by choosing appropriate values for the variable parameters.