Study on application of MSA in precision inspection of compression testing machine;

The Computer controlled constant stress hydraulic system was designed for 300kN cement compression testing machine which used to testing cement's compressive strength and it was controlled by a digital controlled micro-flow Valve and loading at a constant stress rate.

We designed a test system of compression testing machine based on LabVIEW.

This paper aims at introducing the design of a type of complex blanking die,a functional combination of blanking with incision mounted on a hydraulic testing machine.

The hydrostatic tester has on -line control,parameter setting,database and printi.

It recommends the main structure and technical characteristic of high pressure hydrostatic tester for seamless pipe and welded pipe designed and developed by Xi an Heavy Mechanical Research Institute.

Pressure testing in hydraulic tube tester may induce a wide range of possible failures to reduce productivity,and it is hard to find locations and reasons when they happen.

The knowledge acquisition of fault diagnosis expert system of hydraulic tube tester is investigated,and a zooming knowledge acquisition method is put forward on the basis of subtractive clustering algorithm which is applied to analyzing the boosting pressure acted by the tester with the results to be evaluated by experts.