I-LEEM-15 Izixhobo zovavanyo ze-PN Junction

Intshayelelo

Iipropathi ezibonakalayo ze-semiconductor PN junction yenye yezinto ezibalulekileyo ezisisiseko kwi-physics nakwi-elektroniki. Esi sixhobo sisebenzisa indlela yokulinga ebonakalayo yokulinganisa ubudlelwane phakathi kokusasazeka okwangoku kwe-PN junction kunye nevolthi, kungqina ukuba obu budlelwane bulandela umthetho wokuhanjiswa okucacileyo, kunye nemilinganiselo ye-Boltzmann rhoqo (enye yezona zinto zibalulekileyo kwi-physics) ngokuchanekileyo, eyenza abafundi bafunde indlela entsha yokulinganisa ubuthathaka lwangoku. Ezi zixhobo zibonelela ngesifudumezi esitshintshisa ubushushu be thermostat ukulinganisa unxibelelwano phakathi kwe-PN junction voltage kunye ne-thermodynamic lobushushu T, ukuze ufumane ubuntununtunu benzwa, kunye nokuqikelela ukufumana isithuba samandla se-silicon kwinto engu-0K. Ezi zixhobo zizinzile kwaye zithembekile, kwaye zinemixholo yokuvavanywa komzimba, umgaqo ocacileyo, uyilo olufanelekileyo lolwakhiwo kunye neziphumo zokuchaneka okuphezulu. Esi sixhobo sisetyenziswa ikakhulu kuvavanyo lomzimba ngokubanzi kunye novavanyo loyilo kuphando kwiikholeji nakwiiyunivesithi.

Uvavanyo

1. Ubudlelwane phakathi kwe-PN junction diffusion current kunye ne-junction voltage kuyalinganiswa, kwaye obu budlelwane buya kungqinwa bulandela umthetho obonakalayo wokuhanjiswa ngokusingathwa kwedatha;

2. Ubushushu beBoltzmann bulinganiswa ngokuchanekileyo (Impazamo iya kuba ngaphantsi kwe-2%);

3. Funda ukusebenzisa i-amplifier yokusebenza ukwenza isiguquli sevolthi yangoku ukulinganisa ukungabinamandla okwangoku ukusuka kwi-10^-6A ukuya kwi-10^-8A;

4. Ubudlelwane phakathi kwamandla ombane we-PN kunye neqondo lobushushu bulinganiswa kwaye ubuntununtunu bamandla ombane wokuhlangana nobushushu kubalwa;

5. Uqikelelo ukubala umsantsa wamandla kwimathiriyeli yesemiconductor (isilicon) kwi0K.

Izalathiso zobuGcisa

1. Ukunikezelwa kwamandla eDC

Uhlengahlengiso lwamandla e-0-1.5V DC;

Uhlengahlengiso lwamandla e-1mA-3mA DC.

2. Imodyuli yemilinganiselo yeLCD

Umlinganiso wesisombululo se-LCD: iiphikseli eziyi-128 × 64

Izikhombisi ezibini zedijithali zoluhlu lwevolthi: 0-4095mV, Resolution ratio: 1mV

Uluhlu: 0-40.95V, Resolution ratio: 0.01V

3. Isixhobo sovavanyo

Yenziwe ngesikhulisi esisebenzayo i-LF356, isokhethi yesinxibelelanisi, i-potentiometer eyahlukeneyo, njl njl. I-TIP31 kunye nohlobo lwe-9013 triode ziqhagamshelwe ngaphandle.

4. Isifudumezi

Yomisa kakuhle ubushushu heater adjustable;

Uluhlu lokulawula ubushushu be-thermostat: Ubushushu begumbi ukuya kwi-80.0 ℃;

Resolution ratio yolawulo lobushushu 0.1 ℃.

5. Izixhobo zokulinganisa ubushushu

DS18B20 isivamvo lobushushu yedijithali