The reason of mechanical excitation automobile damper test bench mechanism error occurrence and its bad effects to the test results are analyzed, with some efficient compensation methods proposed on the basis of interpolation.

The Error Tracing Entropy Method of the Measure and the Control System;

To acquire the exactitude information of interferences in cold milling process, and improve the control effect of AGC system, the main sources and reasons of thickness error were analyzed and described in detail using date mining theory and error tracing technology.

To research the error tracing of the dynamic measurement, the dynamic measuring system based on differential mutual inductive displacement transducer is studied and the dynamic characteristics internal is analyzed.

In order to sure measuring accuracy of wind-speed,in this article,operating principle,error source and determine method of calibration coefficient will be introduced in details.

The error sources, error classification, and the components of the calibration equipment were discussed.

Analysis of tracking error source for shipboard photoelectric tracking system;

The error source and modification of multi-coordinator measurers;

Study on the Error Source of Inertial Platform during in-Alignment;

After deeper studies on the measuring instrument of the acceleration of Gravity by Freely Falling, the main source of errors is analysed, and some methods of reducing errors and approving the instrument are given.