I-LADP-3 Microwave Electron Spin Resonance Izixhobo
I-Electron spin resonance ikwabizwa ngokuba yi-electron paramagnetic resonance, ebhekisa kwinto yokutshintsha kwesandi phakathi kwamanqanaba emagneti amandla e-electron spin umzuzu wamagneti xa ichaphazeleka ngumaza ohamba rhoqo we-electromagnetic kumazibuthe. Le nto inokubonwa kwizinto ze-paramagnetic ezinee-spin ezingafakwanga amaxesha (oko kukuthi iikhompawundi eziqukethe ii-elektroni ezingafakwanga). Ke ngoko, i-electron spin resonance yindlela ebalulekileyo yokufumana ii-elektroni ezingafakwanga nto kumbandela kunye nokunxibelelana kwazo neeathom ezingqonge, ukuze kufunyanwe ulwazi malunga nokwenziwa kwezinto ezincinci. Le ndlela inokuziva okuphezulu kunye nokusombulula, kwaye inokusetyenziselwa ukuhlalutya izinto ngokweenkcukacha ngaphandle kokonakalisa ubume besampulu kwaye akukho siphazamiso ekuphenduleni kwamachiza. Okwangoku, isetyenziswa ngokubanzi kuphando lwe-physics, i-chemistry, i-biology kunye neyeza.
Uvavanyo
1. Funda kwaye uyamkele imeko ye-electron spin resonance.
2. Linganisa iLande g-Into yesampulu ye-DPPH.
3. Funda ukusebenzisa izixhobo ze-microwave kwinkqubo ye-EPR.
4.Ukuqonda ukuma kwamaza ngokutshintsha ubude bomhlaba obuvakalayo kunye nokujonga ubude bamaza egagasi.
5. Linganisa ukusasazeka kokuma kwentsimi kumngxunya we-resonant kwaye umisele ubude bamaza egagasi.
Ukucaciswa
Inkqubo yeMicrowave | |
Mfutshane-wesekethe piston | Uluhlu lohlengahlengiso: 30 mm |
Isampulu | I-DPPH powder kwityhubhu (ubukhulu: ×2 × 6 mm) |
Imitha yokuhamba rhoqo kwimicrowave | Uluhlu lwemilinganiselo: 8.6 GHz ~ 9.6 GHz |
Ubungakanani be-Waveguide | ngaphakathi: 22.86 mm × 10.16 mm (EIA: WR90 okanye IEC: R100) |
Umbane | |
Igalelo ombane kunye nokuchaneka | Ubukhulu: ≥ 20 V, 1% ± 1 amanani |
Uluhlu lwangoku lokufaka kunye nokuchaneka | 0 ~ 2.5 A, 1% ± 1 amanani |
Uzinzo | 1 × 10-3+5 mA |
Ukomelela kwamandla kazibuthe | 0 ~ 450 mT |
Tshayela Ibala | |
Imveliso yombane | V 6 V |
Iziphumo zoluhlu lwangoku | 0.2 ~ 0.7 A. |
Uluhlu lokuhlengahlengisa isigaba | ≥ 180 ° |
Skena imveliso | Isinxibelelanisi se-BNC, ukuphuma kwamazinyo e-saw ~ 1 V 10 |
Umthombo weSignal Microwave Signal | |
Rhoqo | 8.6 ~ 9.6 GHz |
Ukuhamba rhoqo | ± 5 × 10-4/ 15 imiz |
Ombane Working | ~ 12 VDC |
Imveliso amandla | > 20 mW phantsi kwemowudi yokulinganisa ngokulinganayo |
Imowudi yokusebenza kunye neeparameter | Ubungakanani obulinganayo |
Ukumodareyitha kwangaphakathi kwesikwere |
Ukuphindaphinda rhoqo: 1000 Hz
Ukuchaneka: ± 15%
Ukuthamba: <± 20, Voltage emi wave wave <1.2Waveguide ubungakanani ngaphakathi: 22.86 mm × 10.16 mm (EIA: WR90 okanye IEC: R100)
Uluhlu lweeNxalenye
Inkcazo | Yangaphakathi |
Umlawuli ophambili | 1 |
Umbane | 1 |
Isiseko seNkxaso | 3 |
Inkqubo yeMicrowave | 1 iseti (kubandakanya izinto ezahlukeneyo ze-microwave, umthombo, isixhobo sokujonga izinto, njl. |
Isampulu ye-DPPH | 1 |
Intambo | 7 |
Incwadana yokufundisa | 1 |