Zomwe zimayambitsa zolakwika zamakina a photodetectors

Zomwe zimakhudzidwa ndi zolakwika za dongosolo lama photodetectors

Pali magawo ambiri okhudzana ndi zolakwika zamakina a photodetectors, ndipo malingaliro enieni amasiyana malinga ndi mapulojekiti osiyanasiyana. Choncho, JIMU Optoelectronic Research Assistant inapangidwa kuti ithandize optoelectronic ofufuza mwamsanga kuthetsa vuto la photodetectors ndikupanga mofulumira makina optoelectronic, potero akufupikitsa kayendetsedwe ka polojekiti ndikupewa kuyambira pachiyambi kuti afufuze ndi kupanga.

3. Kukana

(1) Kukaniza mtengo: Kusankhidwa kwa zikhalidwe zoyenera kukana kumakhudzidwa ndi gawo lokulitsa la amplifiers ogwirira ntchito, kusanja kukana, kusefa kwa RC, ndi zina zambiri. Mtengo wotsutsa suyenera kukhala wokulirapo, popeza mtengo wotsutsana ndi wokulirapo, chizindikiro chocheperako, chosauka kwambiri chotsutsana ndi kusokoneza, komanso phokoso loyera la Gaussian. Siyeneranso kukhala yaying'ono kwambiri, chifukwa mphamvu yogwiritsira ntchito mphamvu idzawonjezeka ndipo ikhoza kutulutsa kutentha ndi kukhudza nthawi ya moyo.

(2) Mphamvu: Onetsetsani kuti P = I ^ 2 * R sichidutsa mphamvu yake yoyesedwa, ndipo kuti muteteze kutsutsa kutenthedwa, sayenera kupitirira theka la mphamvu zake zoyesedwa.

(3) Kulondola: Kulibe mphamvu pang'ono pa kulondola kwa dongosolo lokonzanso.

(4) Kutentha kwapang'onopang'ono: Kutsika kwa kutentha kwa zopinga ndizofunikira kwambiri pakuwerengera zolakwika mwadongosolo.

4. Capacitor

(1) Capacitance value: Kwa mabwalo okhudzana ndi RC filt, nthawi zosasintha, ndi zina zotero, mtengo wa capacitance uyenera kuwerengedwa molondola. Kapangidwe kake sikunganyalanyaze nthawi yokhazikika yokhazikitsa ma siginecha kuti azisefa ma frequency osokoneza. Ndikofunikira kuganizira zofunikira za ma frequency domain ndi domain domain panthawi imodzi kuti mukwaniritse zofunikira zosefera ndi nthawi yokhazikitsa ma sign.

(2) Kusamalitsa: Ngati ntchito yanu ikugwirizana ndi zizindikiro zapamwamba kwambiri kapena imafuna bandwidth yapamwamba ya fyuluta, muyenera kusankha ma capacitors ndi apamwamba kwambiri. Nthawi zambiri, zofunikira zolondola za ma capacitors sizowoneka bwino.

(3) Kutentha kwamphamvu.

(4) Kukaniza Kupanikizika: Iyenera kukwaniritsa njira zochepetsera, ndi 20% yotsutsa malire a ntchito.

4. Kutentha kwa ntchito

(1) Dziwani kuchuluka kwa kutentha komwe kumagwiritsidwa ntchito potengera zofunikira zamtundu wa photodetector. Mwachitsanzo: Kutentha kwa ntchito kwa mankhwala enaake a IVDphotodetector mankhwalandi 10 mpaka 30 ℃. Kufunika kwa kutentha kumeneku n'kofunika kwambiri chifukwa magawo okhudzana ndi kutentha kwa zinthu monga amplifiers, resistors, ndi ADC zomwe tazitchula poyamba zimagwirizana kwambiri ndi kutentha kwa ntchito ya mankhwala. Poganizira za kusiyana kwa kutentha ndi mphamvu ya kusiyana kwa kutentha pansi pa zochitika zenizeni za chilengedwe, zimatsimikizirika kuti kusintha kwakukulu kwa kusintha kwa parameter iliyonse mkati mwa kutentha kumeneku sikudutsa chofunika chomaliza chaphotoelectric systemcholakwika.

(2) Dziwani ngati pali zigawo zomwe zimakhudzidwa ndi chinyezi komanso ngati zofunikira za chilengedwe za chinyezi zimakwaniritsidwa: Dziwani kuchuluka kwa kusintha kwa chinyezi m'malo ogwirira ntchito ndi magawo a zipangizo zowononga chinyezi zomwe zimakhudza zotsatira.

5. Kukhazikika ndi kudalirika kwa dongosololi kumagwirizana ndi kukhazikika kwapangidwe kwa photodetector. Chofunikira pakuwerengera zolakwika zamakina ndikuti dongosololi ndi lokhazikika ndipo siliyenera kukhudzidwa ndi chilengedwe chokhudzana ndi EMC; apo ayi, mawerengedwe onse alibe tanthauzo. Chifukwa cha kuchepa kwa malo, mutuwu sudzafotokozanso mowonjezereka. Mbali ziwiri zotsatirazi ziyenera kuganiziridwa makamaka. Pakukonza dera, kusamala kotetezedwa ndi njira zopewera ziyenera kuchitidwa kwa EMI ndi EMS. B. Chophimba, chitetezo cha mawaya olumikiza, njira zoyambira pansi, ndi zina zotero ziyeneranso kufufuzidwa ndi kutsimikiziridwa.