Ungasitshela okwengeziwe ngomthelela wosawoti emiphumeleni?Ingabe kukhona uhlobo oluthile lomphumela we-capacitive wengqimba ephindwe kabili yama-ion emhlabathini?
Kungaba kuhle uma ungangikhomba ngolwazi olwengeziwe mayelana nalokhu.Ngithanda ukwenza izilinganiso zomswakama wenhlabathi ezinembayo.
Cabanga nje ukube bekukhona umqhubi ophelele ezungeze inzwa (isibonelo, uma inzwa ibicwiliswa ku-liquid gallium metal), ibingaxhuma amapuleti e-sensor capacitor komunye nomunye ukuze okuwukuphela kwe-insulator phakathi kwawo kube ukunamathela okuncane ibhodi lesifunda.
Lezi zinzwa ezishibhile ezine-capacitive, ezakhelwe kuma-chips angu-555, ngokuvamile zisebenza kumafrikhwensi kumashumi e-kHz, aphansi kakhulu ukuqeda amandla kasawoti ancibilikile.Kungase kube phansi ngokwanele ukuze kubangele ezinye izinkinga ezifana nokumuncwa kwe-dielectric, okuzibonakalisa njenge-hysteresis.
Qaphela ukuthi ibhodi lezinzwa empeleni liyi-capacitor ochungechungeni elinesekhethi elingana nenhlabathi, eyodwa ohlangothini ngalunye.Ungasebenzisa futhi i-electrode engavinjiwe ngaphandle kwanoma yikuphi ukunamathela ukuze uxhumeke ngokuqondile, kodwa i-electrode izoncibilika ngokushesha emhlabathini.Ukusetshenziswa kwensimu kagesi kuzodala i-polarization emhlabathini + imvelo yamanzi.Imvume eyinkimbinkimbi ilinganiswa njengomsebenzi wensimu kagesi esetshenzisiwe, ngakho-ke i-polarization yezinto ezibonakalayo ihlale isala ngemuva kwensimu kagesi esetshenzisiwe.Njengoba imvamisa yenkambu esetshenziswayo ikhula ebangeni eliphakeme le-MHz, ingxenye ecatshangelwayo ye-dielectric engaguquki eyinkimbinkimbi yehla kakhulu njengoba i-dipole polarization ingasalandeli i-oscillation ephezulu yenkambu kagesi.
Ngaphansi kuka-~500 MHz, ingxenye ecatshangelwayo ye-dielectric engaguquki ibuswa usawoti futhi, ngenxa yalokho, i-conductivity.Ngaphezu kwalezi zikhathi, i-dipole polarization izokwehla kakhulu futhi i-dielectric constant constant izoncika kokuqukethwe kwamanzi.
Izinzwa eziningi zezentengiselwano zixazulula le nkinga ngokusebenzisa amaza aphansi futhi zisebenzisa ijika lokulinganisa ukuze ziphendule izakhiwo zomhlabathi kanye nobuningi.
Isikhathi sokuthumela: Jan-25-2024