TAKhOMETR (az yunoni tashos — zudi, surat va ..letr), asbobest baroi chen kardani basomadi gardishi (surati kunjii) detalhoi moshin va mekhanizmho.
Takhometrhoi magniti, vibrasioni, stroboskopi, magnitoinduksioni, elektromagniti, basomadiyu impulsi, ferrodinamiki, pnevmati va gayra mavjudand. Hududi andozagirii takhometr az 0 to 1000000 gard/ daqiqa ast. Khatoi joizash dar diapazoni kori az ±0,05 to ±4% meboshad. Takhometre, ki nishondodhoro avtomati qayd mekunad, takhograf nom dorad.