1. Piezoelectric ceramic sensor
Lub piezoelectric ceramic sensor lub hauv paus kev khiav hauj lwm mechanism yog qhov zoo piezoelectric nyhuv. Vim tias tsis muaj qhov xwm txheej thaum lub voj kev tawm tswv yim impedance infinite tom qab siv lub zog sab nraud, cov nyhuv piezoelectric yog siv los hloov. Tsuas yog dynamic lossis quasi-static kev ntxhov siab tuaj yeem ntsuas thiab hnov los ntawm ceramic sensors. Nws feem ntau yog siv los ntsuas qhov sib txawv ntawm lub cev, suav nrog kev hloov pauv hauv acceleration, siab, thiab kev vibration. Piezoelectric ceramic sensors tau dav siv los ua qhov tseem ceeb ntawm ntau qhov kev tshawb nrhiav thiab tswj cov tshuab.
2. Capacitive sensor
Capacitive sensors siv ntau hom capacitors raws li kev ntsuas lub cev los hloov cov ntsuas lub cev lossis cov khoom siv hluav taws xob rau hauv kev hloov pauv, uas yog cov capacitors uas muaj qhov sib txawv. Capacitive sensors yog dav siv nyob rau hauv kev ntsuas ntawm kev khiav hauj lwm, lub kaum sab xis, kev co, ceev, siab, muaj pes tsawg leeg tsom xam, nruab nrab zog, thiab lwm yam. Feem ntau siv yog parallel phaj capacitors los yog cylindrical capacitors.
3. Magnetoelectric sensor
Lub magnetoelectric sensor siv lub hauv paus ntsiab lus ntawm electromagnetic induction los hloov lub input txav ceev mus rau hauv induced muaj peev xwm tso zis nyob rau hauv kauj. Nws ncaj qha converts lub zog txhua yam ntawm cov khoom ntsuas mus rau hauv cov hluav taws xob teeb liab tso zis, thiab tsis tas yuav tsum muaj lub zog sab nraud los ua haujlwm. Nws yog ib tug nquag active sensor. Vim lub zog tso zis loj ntawm lub sensor no, qhov ntsuas hluav taws xob thib ob siv tau yooj yim heev.
