Mbadamba ma ọ bụ ama ihuenyo mmetụ bụghị naanị a n'aka na-egosipụta ihe ọmụma, ma na-na-achịkwa unit, nke dị ezigbo mkpa. The mbụ dị otú ahụ ngosi echepụta azụ ke seventies nke ikpeazụ nke narị afọ, ma malite ifịk ifịk na-eji na-egwu ya edekọ consoles na smartphones. Conventionally, niile sensọ nwere ike kere n'ime capacitive na resistive. Resistive technology bụ taa gharazie ịba uru, ma na-eji ọtụtụ ebe iji budata belata na-eri nke ikpeazụ na-eri nke na ngwaọrụ. Nke a technology na-agụnye iji a na kọntaktị na ihuenyo ọ bụla ọzọ ma ọ bụ obere nkọ ihe, ma na ala na-eri na a dịgasị iche iche nke akara ngwa agwụcha ndepụta uru dị otú ahụ ngwaọrụ.
Capacitive aka hụ na i meziri na-akwanyere ya ùgwù site eziokwu na gadget akara nwere ike na-rụrụ iji ihe na-enwe a nnukwu ike, na-eduzi ugbu a. Ihuenyo onwe ya na-kpụrụ dị ka a iko panel ntekwasa na a resistive ihe nwere a zuru ezu elu ogo nghọta. Mgbe mkpịsị aka aka na ihuenyo, ma ọ bụ ihe ọ bụla ọzọ ihe na-eme ugbu a, leakage ugbu a emee, ndị edebanyere electrodes dị na nkuku nke ogwe. Capacitive aka hụ na i meziri na-onwem na a njikwa, nke aha n'ókè nke tangency. N'ihi ya, ọ na-enyo a aka ka a n'otu isi ihe. Capacitive aka hụ na i meziri nwere zuru ezu elu pụrụ ịdabere, ikwe na-ebu ihe abụọ na narị nde metụrụ.
Ọ bụ omume na-atụle ọzọ nhọrọ nke ụdị. Touch ihuenyo ụdị capacitive ghọrọ progenitor nke a technology dị ka ntule-capacitive. Ebe a ụkpụrụ nke ime ihe dabeere na a okporo ọrụ electrodes nsogbu ke n'ime akụkụ nke ihuenyo. Ọnụ na ahụ mmadụ ha na-etolite a capacitor, capacitance nke nke na-emepụta a mgbanwe nke ngosi njikwa. Nke a technology na-eji na mmepụta nke iPhone.
Capacitive aka hụ na i meziri nwere ọtụtụ uru. Ha nwere ike na-ewere tụnyere resistive ghọọ ọzọ apụta ìhè. N'ezie, ndị dị otú ahụ a tụnyere, mbụ uru, n'ihi na ha nwere oké uru. Ha nwere elu udu nke pụrụ ịdabere. N'ihi na ha, ọ dịghị mkpa maka mmezi. The uche dị otú ahụ hụ na i meziri bụ nnọọ elu. Multi-aka capacitive ihuenyo mmetụ na-akwado multi-aka technology, nke bụ bụghị resistive.
Ọ bụ ihe kwesịrị ịrịba ama na usoro nke n'ichepụta ihe meziri kwa afọ-aghọ ndị ọzọ inweta ọgwụgwụ ngwaọrụ maka na ọkụ eletrik, taa, ọ ga-ọzọ mgbe hụrụ na mmefu ego nsụgharị nke mbadamba na aka igwe. The naanị drawback bụ ukwuu controversial enweghi ike na-arụ ọrụ na a mkpịsị, ma ọ bụ ofu. Dabere na arụmụka kọwara capacitive meziri nwere ike na-akpọ bụ ugbu a ndị kasị ekwe na mmepụta nke mbadamba.