Raws li qhov chaw tsim khoom ntawm qhov tob hauv qhov drilling tshuab, nyob rau hauv qhov raug thib ob-qhov system, qhov damping coefficient X = 1/2 (kt) - 1/2, qhov kev yuam steady E () = 1 / k, qhov twg k yog qhov qhib qhov sib txawv ntawm qhov qhib qhov rooj, uas yog feem ntau hu ua qhib-loop nce rau hauv engineering. Obviously, qhib-loop magnification ntawm qhov system yog ib qho ntawm qhov tsis tseem ceeb uas cuam tshuam rau static thiab dynamic performance ntawm qhov system servo. Feem ntau, qhov loj ntawm qhov kev pab cuam ntawm qhov chaw nqus qhov drilling yog 20-30 (1 / s). Servo systems nrog K <20 ntau="" yog="" feem="" ntau="" hu="" ua="" qis="" loj="" los="" yog="" cov="" tshuab="" muag="" soft,="" uas="" feem="" ntau="" siv="" rau="" kev="" tiv="" thaiv="" taw=""> Lub kaw lus nrog k> 20 yog hu ua high magnification los yog nyuaj servo system, uas yog siv rau txoj kab ua haujlwm contour.
Yog tias cov lus teb tsis ua rau oscillate kom tsis txhob cuam tshuam rau qhov chaw npaug thiab qhov tseeb ntawm qhov chaw ua haujlwm, nws yuav tsum yog qhov tseem ceeb ntawm cov lus teb yuav loj dua thiab qhov qhib-loop amplification factor K yuav me. Yog hais tias peb pib los ntawm kev ceev ntawm lub cev, peb cia siab tias qhov qhib qhov voj voos qhib qhov siab yuav me me ntxiv, uas yog, peb cia siab tias qhov qhib qhov voj voos qhib qhov siab yuav nce, thiab qhov khov kho-qhov tseeb ntawm qhov system tuaj yeem kho nrog K nce nqi.
Vim li no, cov kev xaiv ntawm K yuav tsum raug suav hais tias yog txhua yam. Hauv lwm lo lus, lub siab zog qhov loj ntawm lub system, qhov zoo. Thaum cov qhab nia hloov ua abruptly, qhov kev hloov ua kom siab zog tuaj yeem ua rau muaj kev txawv txav hauv cov zis. Mechanical devices yuav raug rau heev, thiab ib txhia kuj yuav ua rau muaj teeb meem hauv stability ntawm lub cev. Qhov no yog vim tias kev ruaj ntseg ntawm cov qib siab yuam kev yuav tsum muaj ntau yam ntawm K. Qis loj zog kuj muaj qee qhov ua tau zoo, xws li kev hloov yooj yim, qauv yooj yim, tsis muaj kev cuam tshuam, thiab zoo qhov chaw npau taws.
