Zinthu zomwe zimakhudza zolakwika za dongosolo la photodetectors

Zinthu zomwe zimayambitsa zolakwika za dongosolo lama photodetectors

Pali magawo ambiri okhudzana ndi cholakwika cha makina ojambulira zithunzi, ndipo zomwe ziyenera kuganiziridwa zimasiyana malinga ndi ntchito zosiyanasiyana za polojekiti. Chifukwa chake, Wothandizira Kafukufuku wa JIMU Optoelectronic adapangidwa kuti athandize ofufuza a optoelectronic kuthetsa mwachangu cholakwika cha makina ojambulira zithunzi ndikupanga mwachangu makina ojambulira zithunzi, motero kufupikitsa nthawi ya polojekiti ndikupewa kuyambira pachiyambi kuti aunikenso ndi kupanga.

3. Kukana

(1) Mtengo wotsutsa: Kusankha kwa mitengo yoyenera yotsutsa kumakhudzidwa ndi mphamvu yowonjezera ya ma amplifiers operational, kukana kolinganiza, kusefa kwa RC, ndi zina zotero. Mtengo wotsutsa suyenera kukhala waukulu kwambiri, chifukwa mtengo wotsutsa ukakhala waukulu, chizindikiro chimakhala chofooka, mphamvu yotsutsana ndi kusokoneza imakhala yofooka, komanso phokoso loyera la Gaussian limakhala lalikulu. Siliyeneranso kukhala laling'ono kwambiri, chifukwa kugwiritsa ntchito mphamvu kudzawonjezeka ndipo kungapangitse kutentha ndikukhudza moyo wa munthu.

(2) Mphamvu: Onetsetsani kuti P=I^2*R siipitirira mphamvu yake yovomerezeka, ndipo kuti choletsa kutenthedwa kwambiri, sichiyenera kupitirira theka la mphamvu yake yovomerezeka.

(3) Kulondola: Sizimakhudza kwambiri kulondola kwa dongosolo lokonzanso.

(4) Kusinthasintha kwa kutentha: Kusinthasintha kwa kutentha kwa ma resistors ndi chinthu chofunikira kuganizira powerengera zolakwika za dongosolo.

4. Chotengera mphamvu

(1) Mtengo wa mphamvu: Pa ma circuits okhudzana ndi RC filt, nthawi zosasinthika, ndi zina zotero, mtengo wa mphamvu uyenera kuwerengedwa molondola. Kapangidwe ka dongosolo sikanganyalanyaze nthawi yosasinthika yokhazikitsa chizindikiro kuti ichotse ma frequency osokoneza. Ndikofunikira kuganizira zofunikira za frequency domain ndi nthawi nthawi imodzi kuti mukwaniritse zofunikira pakusefa ndi nthawi yokhazikitsa chizindikiro.

(2) Kulondola: Ngati pulogalamu yanu ikugwirizana ndi zizindikiro zama frequency apamwamba kapena ikufuna bandwidth yayikulu ya fyuluta, muyenera kusankha ma capacitor olondola kwambiri. Kawirikawiri, zofunikira za kulondola kwa ma capacitor sizosavuta kwenikweni.

(3) Kusinthasintha kwa kutentha.

(4) Kukana kupanikizika: Iyenera kukwaniritsa zofunikira pa kapangidwe ka kukana, ndi malire a 20% a kukana kugwiritsa ntchito.

4. Kutentha kogwira ntchito

(1) Dziwani kutentha komwe kumagwira ntchito kutengera zomwe chipangizo chowunikira zithunzi chimafuna. Mwachitsanzo: Kutentha komwe kumagwira ntchito kwa chipangizo china cha IVDchinthu chowunikira zithunzindi 10 mpaka 30 ℃. Kufunika kwa kutentha kumeneku n'kofunika kwambiri chifukwa magawo okhudzana ndi kusinthasintha kwa kutentha kwa zigawo monga ma amplifier operational, resistors, ndi ADCs omwe atchulidwa kale onse amagwirizana kwambiri ndi zofunikira pa kutentha kwa ntchito kwa chinthucho. Poganizira kusiyana kwa kutentha ndi momwe kutentha kumakhudzira momwe zinthu zimagwiritsidwira ntchito, zimatsimikiziridwa kuti kusintha konse kwa gawo lililonse mkati mwa kutentha kumeneku sikupitirira kufunika komaliza kwadongosolo lamagetsicholakwika.

(2) Dziwani ngati pali zinthu zomwe zimakhudzidwa ndi chinyezi komanso ngati zofunikira pa chilengedwe cha chinyezi zikukwaniritsidwa: Dziwani kuchuluka kwa kusintha kwa chinyezi m'malo ogwirira ntchito ndi magawo a zipangizo zomwe zimakhudzidwa ndi chinyezi zomwe zimakhudza zotsatira zake.

5. Kukhazikika ndi kudalirika kwa dongosololi zikugwirizana ndi kapangidwe ka kukhazikika kwa chowunikira zithunzi. Chofunika kwambiri pakuwerengera zolakwika za dongosololi ndikuti dongosololi likhale lokhazikika ndipo lisakhudzidwe ndi malo okhudzana ndi EMC; apo ayi, kuwerengera konse sikuli kofunikira. Chifukwa cha kuchepa kwa malo, mutuwu sufotokoza zambiri. Mbali ziwiri zotsatirazi ziyenera kuganiziridwa makamaka. Pakupanga dera, mfundo zokhwima zotetezera ndi njira zopewera ziyenera kutengedwa pa EMI ndi EMS. B. Chivundikiro, chitetezo cha mawaya olumikizira, njira zokhazikitsira pansi, ndi zina zotero ziyeneranso kufufuzidwa ndikutsimikiziridwa.