The paper introduced that the electronic weigh scale replaced with the intelligent weight system to reduce accumulative error for urea packing.

Most of the existing 3D geometry compression algorithms employ two strategies: successive quantization and predictive coding, and induce accumulative error.

Some analyses have been done to the process of the metal magnesium matching-material problem, and one three-steps matching-material control algorithm is developed arming to minimize the accumulative errors.

To overcome the disadvantage of image match based image gray,the paper first gives the definition of "image trace",then by computing the trace difference of images and geting the least value of accumulative errors,it finishes the im.

Accumulated error control technique applied in small mass production of piece;

This paper introduces the principle of the 3D Optix laser scanner briefly,discusses the method of improving the data accuracy in single piece measurement and reducing the accumulated error of spliced joint in multi-pieces measurement with an applied example.

Firstly,the nonlinear problem and the cause of accumulated error for inertial strapdown attitude solution were analyzed.

With the purpose to reduce influence of accumulative error from the recurrence formula of residual stress measured with magnetic stress meter on the calculation result,based on the consideration that the stress at a same measuring point has no relation to the measuring order,the author proposed an improved calculation method for the work piece with free boundaries on both ends.