This paper discusses the operating principles and the major design method in the temperature intelligence detection and control closed loop system compsed by 8031 monolithic integrated circuit and joint circuit,which used in the plumbum quenching of wire_steel for steel rope,analyses the dynamic precision of this system.

Focused on the dynamic precision measurement of the optical moving target,a suit of experimental equipment of measuring the dynamic precision of the optical moving target by auto collimation was developed,and the principle and the process of it were proposed in this paper.

The measure of modified gear tooth shape in order to ensure gear dynamic precision was pointed out.

Influencing factors of dynamic accuracy of CMMs;

This paper makes an introduction to the test contents and algorithms for both static accuracy and dynamic accuracy of NC machine tools,especially those for the positioning accuracy of static accuracy and the process capability of dynamic accuracy.

Tactical missiles fire control system dynamic accuracy simulation test is limited by long test period and high price of measurement and control equipment,which costs much great.

Development of step height measurement;

In this paper,several non-contact optical methods of measurement of step height are introduced in brief,and the absolute distance interferometry with diode laser is emphasized hereinto.

Step height is an important parameter.

The results indicated that if the bench height is increased properly,the percent of large-scale stones may be decreased.

In this paper the influence of bench height on open mine bench blasting was studied by model test in laboratory.

The effect of bench height on open pit mining is studied.