Ngati mphamvu ya chizindikiro Q yomwe ikuwonetsedwa mu M90 ndi yochepera 60, njira zotsatirazi zikulangizidwa kuti zigwire bwino ntchito:

1) Sinthani malo abwino.

2) Yesani kupukuta pamwamba pa chitoliro, ndikugwiritsa ntchito cholumikizira chokwanira kuti muwonjezere mphamvu ya chizindikiro.

3) Sinthani malo a transducer molunjika komanso molunjika; onetsetsani kuti mtunda wa transducers ndi wofanana ndi mtengo wa M25.

4) pamene chitoliro sichili choyenera kutumiza chizindikiro cha ultrasonic; chosinthira chathu chotentha choyikiramo chimalimbikitsidwa.