In the leakage characteristic test , the problem of small leakage flow automatic test is solved with the method of usage of an ellipse gear flow meter and a self - made interface circuit . in the dynamic state characteristic test , frequency sweeping and statistic methods are used and their results are compared with 1250 frequency response analyzer 在電液伺服閥動(dòng)態(tài)測(cè)試實(shí)驗(yàn)中,采用了掃頻法和統(tǒng)計(jì)法這兩種不同的方法進(jìn)行測(cè)試,并對(duì)實(shí)驗(yàn)結(jié)果與1250頻響分析儀所測(cè)的結(jié)果作了對(duì)比,發(fā)現(xiàn)二者基本一致。