LEEM-15 Gwajin Gwajin na PN Junction halaye

Gabatarwa

Abubuwan da ke cikin mahaɗan PN junction suna ɗayan mahimman abubuwan da ke cikin kimiyyar lissafi da lantarki. Wannan na'urar tana amfani da hanyar gwaji ta zahiri don auna alakar da ke tsakanin yaduwar kwayar PN da kuma karfin wuta, ya tabbatar da cewa wannan alakar tana bin ka'idojin rarrabawa, kuma tana auna daidaituwar Boltzmann (daya daga cikin mahimman ci gaba a kimiyyar lissafi) mafi daidai, wanda ke ba da damar daliban su koyi sabuwar hanya don auna raunin mai rauni. Wannan kayan aikin yana samarda wani hita mai sauya yanayin zafin jiki don auna alakar dake tsakanin wutar lantarki ta PN da kuma yanayin zafi na thermodynamic T, don samun karfin jijiyar firikwensin, da kuma kusanci don samun gibin makamashi na sinadarin siliki a 0K. Wannan kayan aikin yana da karko kuma abin dogaro, kuma yana da wadatattun kayan gwaji na zahiri, bayyanannen ra'ayi, ingantaccen tsarin tsari da kuma sakamakon auna daidaito. Wannan kayan aikin ana amfani dashi galibi cikin gwaje-gwajen jiki na yau da kullun da gwaje-gwajen bincike a cikin kwalejoji da jami'o'i.

Gwaje-gwaje

1. An auna alaƙar da ke tsakanin rarrabuwa tsakanin PN da kuma mahaɗan mahada, kuma wannan alaƙar za a tabbatar da bin ƙa'idar rarraba doka ta hanyar sarrafa bayanai;

2. An auna ma'aunin Boltzmann daidai yadda ya kamata (Kuskuren zai zama ƙasa da 2%);

3. Koyi amfani da amfilifa na aiki don ƙirƙirar mai canza ƙarfin lantarki don auna mara ƙarfi daga 10^-6A zuwa 10^-8A;

4. An auna alaƙar da ke tsakanin ƙarfin ƙarfin PN da zafin jiki kuma an ƙididdige ƙarancin ƙarfin jituwa tare da zafin jiki;

5. M kimanin don yin lissafin rarar kuzarin sashin semiconductor (silicon) a 0K.

Fihirisar Fasaha

1. Bayar da wutar lantarki ta DC

Mai daidaitaccen 0-1.5V DC mai ba da wutar lantarki;

Mai daidaitaccen 1mA-3mA DC mai ba da wutar lantarki.

2. LCD na auna ma'auni

Yanayin ƙudurin LCD: 128 × 64 pixels

Manuniya dijital biyu na ƙarfin lantarki Range: 0-4095mV, Yanayin ƙuduri: 1mV

Yankin: 0-40.95V, Yanayin ƙuduri: 0.01V

3. Na'urar gwaji

Ya ƙunshi mai amfani da LF356 mai aiki, soket mai haɗawa, mai ƙarfin juyawa mai yawa, da dai sauransu TIP31 da nau'in 9013 triode suna haɗe daga waje.

4. Mai hita

Dry da jan karfe daidaitacce hita.

Yankin sarrafa zafin jiki na thermostat: Zafin jiki na daki zuwa 80.0 ℃;

Yanayin ƙuduri na sarrafa zafin jiki 0.1 ℃.

5. Kayan aikin auna zafin jiki

DS18B20 firikwensin zafin jiki na dijital