For the purpose of ensuring the quality of our products , our company has invested 4 million rmb in building multi - purpose lab , and introducing almighty experiment machine , impulsion testing machine , ultrasonic digital thickness - testing device , full - automatic ultrasonic thickness - testing device , sclerometer , ultrasonic flaw detector , x - ray machine , magnetic particle flaw detector and other advanced quality inspecting devices 为了确保产品的质量，公司投资400多万元建起了多功能实验室，配备了机械式万能试验机冲击试验机超声波数字测厚仪全自动超声测厚仪里氏硬度计超声波探伤仪x射线机磁粉探伤仪等先进的质量检测设备。
In addition to control technology , electro - hydraulic omnipotence test - machine adopted high - precision ' s force and displacement measurement system and computer ' s collection and disposal technology , reach and exceed over the electro universal material test - machine electro - hydraulic in function , electro - hydraulic universal material test - machine and all kinds of pressure test - machine have superority over others specially in great load fields 电子液压万能试验机除了控制技术外，还采用高精度力与位移测量系统及计算机采集处理等技术，在功能上达到甚至超过电子万能试验机，尤其在大负荷上液压万能试验机及各种压力试验机具有更大的优势。
Now , it contracted obviously the disparity with whole country advanced level and raised the testing accuracy and research levels that the research institute whose experiment area is big and the devotion value is high , purchased lately a number of advanced experiment instrument equipments and software , for instance , model machine quickly , tri - coordinate measure machine , laser 3d scanners , multicenter vibration test and analysis system , electronic all - powerful experiment machine , hydraulic presses servo fatigue test machine , festo machine electricity to imitate manufacture system , the software of cad / cam / cae and so on 如今，研究所的实验面积大、投入价值高，新购置了快速成型机、三坐标测量机、激光三维扫描仪、多通道振动测试与分析系统、电子万能试验机、液压伺服疲劳试验机、 festo机电模拟生产系统、 cad / cam / cae软件等一批先进的试验仪器设备和软件，明显缩小了与全国先进水平的差距，提高了试验的准确性和科研水平。
But based on the incomplete statistic , the amount of universal testing machine with electro - hydraulic servo controlled that can be used normally is no more than half since it is manufactured in 1987 . so the analysis and study on the typical test machine - the pws - 100 dymamic & static universal test machine with electro - hydraulic servo controlled is presented 然而据不完全统计，国内市场伺服阀式试验机自1987年开始生产至今，能正常使用的不足一半，因此，本次研究选择该试验机中的典型机pws - 100型电液伺服动静万能试验机进行分析计算。
The system has been successfully applied to a 300kn testing machine improvement in the central laboratory of mechanical engineering , zhejiang university of technology . what ' s more , with shanghai shenlian testing machine factory , microcomputer control hydraulic universal testing machine is developed . they can meet the control requirements of stress rate and strain rate in the international standard iso 6892 : 1998 ( e ) and the national standard gb228 - 2002 利用该系统已经对浙江工业大学机械基础中心实验室一台300kn试验机成功地进行了改造，并与上海申联试验机厂合作开发了微机控制液压万能试验机，满足国际标准iso6892 ： 1998 ( e )及国家标准gb228 - 2002对试验时的应力速率及应变速率的控制要求，在实际应用中取得了较好的效果。
With the development of test - machine technology , in recent years electro - hydraulic universal material test - machine of the country inside and outside develops three different control modes : electro - hydraulic servo valve ' s control ; adopted the pressure valve ' s control with speed controller ; proportion valve ' s control of wide flux 随着试验机技术的进步，近年来国内外电子液压万能试验机发展了三种不同控制方式：电液伺服阀控制、采用具有速度控制器的压力阀控制和宽流量范围的比例阀控制。
Detection : carbon - sulfur analyzer , oxygen analyzer , glazing machine , rockwell ( vickers ) hardometer , profile projector , surfagauge , scan electron microscope , laser conductometer , magna - check , universal measuring instrument , metallograph and image analysis system , abrasion tester , universal test machine and other advanced analysis and detection equipment and instruments 检测类：碳硫分析仪、氧分析仪、试验室用抛光机、洛（维）氏硬度计、轮廊投影仪、表面粗糙度测量仪、扫描电镜、激光热导仪、磁力探伤机、万能测量仪、金相显微镜及图像分析系统、磨损试验机、万能试验机及其它的先进的分析检测设备和仪器等产品类。
