Discussion on Formulating of Allowance for Steel-delivering & accepting under the Law;

Every kind of element may have different specification deviations, which may berandom and not in allowance.

The paper analyzed non-overconstraint structure,freedom degree s configuration of the series Watt type six-bar mechanism,self-adjusting and the permissible errors under the configuration.

Computerized control of error sensibility and tolerance analysis;

According to the cigarette weight control and test the actual situation, after the mathematical theory, find cigarette weight tolerance relations between Single Cigarette and More Cigrettes,provide a scientific basis for confirm a reasonable weight Standard, improve the practicability of cigarette Weight Control.

Combined with the actual requirements of geophone in field exploration, some technical specifications of geophones are discussed such as spurious frequency, distortion, tolerance, temperature performance and reliability, and thus providing more sound basis for users to choose the proper geophones.

Detection of profile error of ship hull plate processing surface;

The conventional method of qualitative inspection and description of the profile error is now incapable of meeting the requirement for product quality control in modern society.

Distribution type of form error and its evaluation model;

Distribution of direct measurement results of measurement points of form error;

Reading contributions of generalized displacement sensors in the separation of form error and error motions;