| As a national standard equipment,hydraulic-amplification force standard machine(HM)’s accuracy and technical function represent a landmark of a nation or territory’s measurement standard.It plays a vital role in the country’s economic,military and aviation area.HM was manufactured in 80 90 s of last century,class 0.05.equipment are quite out dated with lower automation level due to the limited skills by then.Recently,the equipment cannot function well since the control system is aging.Therefore,the redesign build and upgrade for the control system is vital and necessary,it’s quite an important project to make sure all the measurement are accuracy in East China area. |