Photoelectronic length measuring system for steel pipe and error analysis;

Ways of automatic pipe length measurement and its error analysis;

Discussion on Tobacco Cut Width Error of RC4 Cutter;

Errors Derived from Machine Compliance and Contribution to the Evaluated Values by Indentation Testing;

The Sources of Errors and Solutions in the Numerical Control Process;

Calculations of Locating errors in Fixture Design;

By using the measurement indetermination,a mersurement error margin is used.

This text explains to Xutuan coal mine west breeze well and main well a method,error margin for of run-through measuring analysis with anticipate.

Methods99 healthy student acted as volunteers for the test and the height of crutches was estimated with error margin of linear regression.

An Analysis to Deviation of the Measurement of Copper Content in Jetfuel;

This paper specifies the meaningfulness and measurement method of rotating machinery alignment and points out the main deviation factors of dial indicator alignment and its control method.

Analyses are made on some major factors affecting twist deviations and the relevant estimations, with measures to narrow twist deviations suggested.

Analysis of tolerance characteristics of imitating arc with an cubic parameter line;

Introduce a try to grind precision spherical crown, including its principle and method, discuss the possible tolerance and give a formula to control the quality.

It pointes out three main reasons of produced tolerance are preparation and machining of sample,temperature control and tolerance of system itself after the tolerance occurred during Sharp impact of spiral welded pipe.