Get lattice Measuring method of the optical track sensing a load measurement accuracy mtf

The present invention provides a rail MTF precision optical remote sensing method for obtaining the load. This method sets the reference value of MTF based on the load parameter of the actual test, the characteristics of a dot MTF test method, reference image is generated by setting different lattice parameters of targets, using a matrix method based on the reference image is calculated MTF values ​​calculated, then Calcd comparison reference value and the MTF, to give MTF measurement accuracy (or uncertainty). The present invention provides a quantitative measure of confidence for the MTF measurement, ensure the accuracy of measurement of MTF.