Lub hauv paus ntawm lub moos quartz yog quartz siv lead ua. Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm quartz siv lead ua yog siv cov nyhuv piezoelectric inverse los tsim ib qho hluav taws xob teb uas ua rau cov siv lead ua vibrate, uas ua rau cov tshuaj tiv thaiv. Vim tias lub zog hluav taws xob tsim los ntawm quartz siv lead ua me me, tsuas yog qhov hluav taws xob sab nraud tsis muaj zog yuav tsum tau ua kom nws deform. Cov yam ntxwv no ua rau kev ua haujlwm ntawm lub quartz moos ruaj khov.
Quartz crystals kuj muaj cov cuab yeej tshwj xeeb: thaum muaj qhov zoo thiab qhov tsis zoo tam sim no ib txhij siv rau ob sab, sab nrog qhov tsis zoo tam sim no yuav khoov rau hauv U-puab. Yog tias qhov zoo thiab qhov tsis zoo tam sim no tau hloov pauv mus rau ob sab ntawm quartz siv lead ua ntawm lub sijhawm tsis tu ncua, cov siv lead ua yuav oscillate, thiab lub moos yuav raug teem sijhawm raws li qhov zaus oscillation.
