500N.m電渦流測功機由感應(ying)子（轉(zhuan)子）、電(dian)樞及(ji)勵(li)磁(ci)繞組、轉(zhuan)矩、轉(zhuan)速(su)傳感器、底板(ban)等組成(cheng)，當感應(ying)子被原動機(ji)驅動旋轉(zhuan)時，氣隙(xi)(xi)磁(ci)通密度(du)隨(sui)感應(ying)子的(de)旋轉(zhuan)而發生(sheng)(sheng)渦(wo)流(liu)電(dian)動勢，并產生(sheng)(sheng)渦(wo)流(liu)，該(gai)渦(wo)流(liu)所產生(sheng)(sheng)的(de)磁(ci)場又與氣隙(xi)(xi)磁(ci)場相互作用(yong)，產生(sheng)(sheng)制動力(li)矩。改變(bian)定子的(de)勵(li)磁(ci)電(dian)流(liu)，可以調節被測動力(li)機(ji)的(de)轉(zhuan)矩。

500N.m電渦流測功機的精度：轉速±0.2%F.S，轉矩(ju)±0.5%F.S。

適用(yong)于高轉速(su)、大(da)(da)功率動力機的轉矩和(he)功率測量(liang)，尤(you)其適用(yong)于動力機（如串激(ji)電機、電動工(gong)具(ju)及(ji)大(da)(da)功率電機）的仿真(zhen)壽命(ming)試(shi)驗及(ji)溫升試(shi)驗。

 簡單配置：測功(gong)機(ji)、夾具(ju)、控(kong)制器

完整配置：測功機(ji)、夾(jia)具、控制器、電參數(shu)、軟件、測控柜(ju)、臺(tai)架、工(gong)控機(ji)、水箱、穩壓電源(yuan)等（依(yi)客(ke)戶(hu)要求選配）.

測(ce)功(gong)機利用電(dian)(dian)機(ji)(ji)(ji)測量各(ge)種動(dong)(dong)力(li)(li)機(ji)(ji)(ji)械軸(zhou)上輸出的轉(zhuan)(zhuan)矩，并結合(he)轉(zhuan)(zhuan)速(su)以(yi)確定設備(bei)的功(gong)(gong)率。因為被測量的動(dong)(dong)力(li)(li)機(ji)(ji)(ji)械可能有不同轉(zhuan)(zhuan)速(su)，所(suo)以(yi)用作(zuo)電(dian)(dian)力(li)(li)測功(gong)(gong)機(ji)(ji)(ji)的電(dian)(dian)機(ji)(ji)(ji)必(bi)須是(shi)(shi)可以(yi)平滑調速(su)的電(dian)(dian)機(ji)(ji)(ji)。電(dian)(dian)力(li)(li)測功(gong)(gong)機(ji)(ji)(ji)分直流電(dian)(dian)力(li)(li)測功(gong)(gong)機(ji)(ji)(ji)和交流電(dian)(dian)力(li)(li)測功(gong)(gong)機(ji)(ji)(ji)，目前(qian)用得較(jiao)多的是(shi)(shi)交流電(dian)(dian)力(li)(li)測功(gong)(gong)機(ji)(ji)(ji)。

測功機主要用(yong)于(yu)測(ce)(ce)(ce)(ce)試發動機(ji)(ji)的(de)(de)功(gong)(gong)(gong)(gong)率，也(ye)可(ke)作為(wei)齒輪箱(xiang)、減(jian)速(su)(su)機(ji)(ji)、變速(su)(su)箱(xiang)的(de)(de)加(jia)載設備，用(yong)于(yu)測(ce)(ce)(ce)(ce)試它們(men)的(de)(de)傳遞功(gong)(gong)(gong)(gong)率。主要分為(wei)水力(li)(li)(li)測(ce)(ce)(ce)(ce)功(gong)(gong)(gong)(gong)機(ji)(ji)、電(dian)(dian)渦流測(ce)(ce)(ce)(ce)功(gong)(gong)(gong)(gong)機(ji)(ji)、電(dian)(dian)力(li)(li)(li)測(ce)(ce)(ce)(ce)功(gong)(gong)(gong)(gong)機(ji)(ji)。電(dian)(dian)力(li)(li)(li)測(ce)(ce)(ce)(ce)功(gong)(gong)(gong)(gong)機(ji)(ji)利用(yong)電(dian)(dian)機(ji)(ji)測(ce)(ce)(ce)(ce)量各種動力(li)(li)(li)機(ji)(ji)械(xie)軸上輸出的(de)(de)轉(zhuan)矩，并結(jie)合轉(zhuan)速(su)(su)以確定功(gong)(gong)(gong)(gong)率的(de)(de)設備。因為(wei)被測(ce)(ce)(ce)(ce)量的(de)(de)動力(li)(li)(li)機(ji)(ji)械(xie)可(ke)能有不同轉(zhuan)速(su)(su)，所以用(yong)作電(dian)(dian)力(li)(li)(li)測(ce)(ce)(ce)(ce)功(gong)(gong)(gong)(gong)機(ji)(ji)的(de)(de)電(dian)(dian)機(ji)(ji)必須是可(ke)以平滑調速(su)(su)的(de)(de)電(dian)(dian)機(ji)(ji)。用(yong)得較多的(de)(de)是直流測(ce)(ce)(ce)(ce)功(gong)(gong)(gong)(gong)機(ji)(ji)、交流測(ce)(ce)(ce)(ce)功(gong)(gong)(gong)(gong)機(ji)(ji)和渦流測(ce)(ce)(ce)(ce)功(gong)(gong)(gong)(gong)機(ji)(ji)。