Bayanin Fasaha na LTE-S9711-J - Mai Fitowa da Mai Gano Infrared - Tsarin Fuskar Gefe - Tsawon Tsinkaya 940nm - Ƙarfin Wutar Lantarki 1.2V - Ƙarfin Radiant 3.0mW/sr

1. Bayanin Samfur

LTE-S9711-J wani kayan aiki ne na infrared da aka tsara don aikace-aikacen da ke buƙatar ingantaccen fitarwa da gano infrared. Yana cikin layin samfuran na'urorin gani. Babban aikinsa shine fitar da ko gano hasken infrared a tsayin tsinkaya na 940 nanometers. Tsarin ruwan tabarau na gefe yana ba da damar kallon fadi, wanda ya sa ya dace da aikace-aikacen da axis na gani yake layi daya da saman da aka ɗora. An gina na'urar da robobi masu tsabta kuma an tsara ta don dacewa da tsarin haɗa kai ta atomatik na zamani.

1.1 Fa'idodi na Asali da Kasuwar da Ake Nufi

LTE-S9711-J yana ba da fa'idodi masu mahimmanci ga masu ƙira. Ya cika ka'idojin RoHS da samfuran kore, yana tabbatar da bin ka'idojin muhalli. Ana ba da kunshin a kan tef na 8mm akan reels masu diamita 13-inch, wanda ya sa ya dace da kayan aikin sanya atomatik mai sauri. Wannan dacewar tana sauƙaƙe tsarin masana'antu don samarwa mai yawa. Bugu da ƙari, an ƙididdige na'urar don hanyoyin siyar da infrared reflow, wanda ya yi daidai da layukan haɗawa na fasahar sanya saman (SMT). Kasuwarmu na farko sun haɗa da na'urorin lantarki na masu amfani don ayyukan sarrafa nesa, aikace-aikacen masana'antu don watsa bayanai ta infrared mara waya, da tsarin tsaro don ayyukan ƙararrawa da hankali. Kunshin fuskar gefe yana da fa'ida musamman a cikin ƙirar da ke da ƙarancin sarari inda kayan aikin da ke fitarwa daga sama ba zai dace ba.

2. Bincike Mai zurfi na Ma'auni na Fasaha

Wannan sashe yana ba da cikakken bayani, fassarar haƙiƙa game da halayen lantarki, gani, da zafi na LTE-S9711-J kamar yadda aka ayyana a cikin matsakaicin ƙididdiga na cikakke da teburin halayen lantarki/gani.

2.1 Matsakaicin Ƙididdiga na Cikakke

Matsakaicin ƙididdiga na cikakke suna ayyana iyakokin damuwa waɗanda sama da su lalacewar dindindin na na'urar na iya faruwa. Waɗannan ba yanayin aiki ba ne. Ga LTE-S9711-J, matsakaicin raguwar wutar lantarki shine 100 mW a yanayin zafin muhalli (TA) na 25°C. Wannan ƙididdiga tana ƙayyadad da ƙirar zafi na kewaye aikace-aikacen. Na'urar na iya ɗaukar babban ƙarfin gaba na gaba na 1 Ampere, amma kawai a ƙarƙashin takamaiman yanayi na bugun jini: faɗin bugun jini na 10 microseconds da kuma ƙimar maimaitawar bugun jini na 300 a kowace daƙiƙa. Matsakaicin ƙimar DC na ci gaba yana da mafi mahimmanci 50 mA. Matsakaicin ƙimar ƙarfin lantarki na baya shine 5 Volts, yana nuna cewa na'urar tana da ƙarancin haƙuri don karkatar da baya kuma ba a tsara ta don irin wannan aikin ba. Kewayon zafin aiki daga -40°C zuwa +85°C, kuma kewayon ajiya daga -55°C zuwa +100°C, wanda shine ma'auni don kayan lantarki na kasuwanci. Na'urar na iya jure siyar da infrared reflow tare da matsakaicin zafin jiki na 260°C na iyakar daƙiƙa 10.

2.2 Halayen Lantarki da Gani

An ƙayyade ma'auni na yau da kullun na aiki a TA=25°C. Babban ma'auni na gani shine Ƙarfin Radiant (I_E), wanda yake da mafi ƙarancin ƙima na 3.0 mW/sr lokacin da aka motsa shi da ƙarfin gaba (I_F) na 20mA. An rarraba wannan ma'auni, kamar yadda aka yi bayani daga baya. Tsayin tsinkaya na fitarwa (λ_Peak) yawanci 940nm, wanda ke cikin kewayon infrared kusa kuma ba a iya gani da idon ɗan adam. Faɗin bandwidth na gani (Δλ), ko rabin faɗin, yawanci 50nm, yana bayyana yaduwar tsayin tsinkaya da aka fitar a kusa da kololuwa. Ta fuskar lantarki, ƙarfin lantarki na gaba (V_F) yawanci 1.2V tare da matsakaicin 1.5V a I_F=20mA. Ƙarfin lantarki na baya (I_R) yana da ƙasa sosai, tare da matsakaicin 10 μA a ƙarfin lantarki na baya (V_R) na 5V. Kusurwar kallo (2θ_1/2) yawanci digiri 45, inda θ_1/2shine kusurwar da ƙarfin radiant ya ragu zuwa rabin ƙimar sa akan axis.

3. Bayanin Tsarin Binning

LTE-S9711-J yana amfani da tsarin binning don Ƙarfinsa na Radiant don tabbatar da daidaito a cikin rukunin samarwa da kuma samar da zaɓuɓɓuka don matakan ayyuka daban-daban. An nuna lambar kwandon a cikin lambar sashi (misali, "J" a cikin LTE-S9711-J). Kwandon da ake samu sune:

• Bin J:Ƙarfin Radiant tsakanin 3.0 mW/sr (min) da 4.5 mW/sr (max) a I_F=20mA.
• Bin K:Ƙarfin Radiant tsakanin 4.0 mW/sr (min) da 6.0 mW/sr (max) a I_F=20mA.
• Bin L:Ƙarfin Radiant tare da mafi ƙarancin 5.0 mW/sr a I_F=20mA (ba a ƙayyade iyaka na sama a cikin bayanan da aka bayar ba).

Wannan tsarin yana ba masu ƙira damar zaɓar kayan aiki wanda ya cika takamaiman buƙatun fitarwa na gani, daidaita aiki da farashi.

4. Bincike na Lanƙwasa Aiki

Bayanin bayanin ya haɗa da lanƙwasa halaye da yawa waɗanda ke da mahimmanci don fahimtar halayen na'urar a ƙarƙashin yanayin da ba na ma'auni ba.

4.1 Rarraba Spectral

Lanƙwasa rarraba spectral (Fig.1) yana nuna ƙarfin radiant na dangi a matsayin aikin tsawon tsinkaya. Yana tabbatar da kololuwa a 940nm da kusan 50nm rabin faɗin gani. Wannan lanƙwasa yana da mahimmanci ga aikace-aikacen da ke da hankali ga takamaiman tsayin tsinkaya ko lokacin daidaitawa tare da amsawar gani na mai gano.

4.2 Ƙarfin Gaba vs. Ƙarfin Lantarki na Gaba & Yanayin Yanayi

Hoto na 2 da Hoto na 3 suna nuna alaƙa tsakanin ƙarfin gaba (I_F) da ƙarfin lantarki na gaba (V_F) a yanayin zafin muhalli daban-daban. Waɗannan lanƙwasa sun nuna cewa V_Fyana da ƙimar zafi mara kyau; yana raguwa yayin da zafin jiki ya karu don wani ƙarfi na musamman. Wannan shine halin da ake sani da diode semiconductor. Fahimtar wannan yana da mahimmanci don ƙirar ingantattun kewayen tuƙi, musamman a kan kewayon zafi mai faɗi.

4.3 Ƙarfin Radiant na Dangi vs. Ƙarfin Gaba & Zafin Jiki

Hoto na 4 da Hoto na 5 suna nuna yadda ƙarfin fitarwa na gani (dangane da ƙimarsa a I_F=20mA) ya bambanta da ƙarfin gaba da zafin muhalli. Fitarwa yana ƙaruwa tare da ƙarfin lantarki amma yana nuna alaƙar ƙasa da layi a manyan ƙarfin lantarki, mai yiwuwa saboda tasirin zafi. Hoto na 4 musamman yana nuna cewa ƙarfin fitarwa yana raguwa yayin da zafin muhalli ya tashi, wanda shine mahimmin abin da ke rage ƙimar aikace-aikacen zafi mai girma.

4.4 Zanen Radiation

Zanen radiation (Fig.6) shi ne zanen polar wanda ke nuna rarraba sararin samaniya na hasken infrared da aka fitar. An tabbatar da kusurwar kallo ta yau da kullun na digiri 45 (2θ_1/2) a nan. Wannan zane yana da mahimmanci don ƙirar gani, yana taimakawa daidaita mai fitarwa tare da mai gano ko don fahimtar yankin ɗaukar hoto na siginar IR.

5. Bayanin Injiniya da Kunshin

5.1 Girman Outline da Polarity

Kayan aikin yana da daidaitaccen fuskar gefe, kunshin sanya saman. Zanen outline yana ba da duk mahimman girma, gami da girman jiki, tazarar jagora, da matsayin ruwan tabarau. Ana gano cathode ta hanyar alamar gani kamar tsaga ko wuri mai lebur a jikin kunshin, kamar yadda aka nuna a cikin bayanin zane. An ƙayyade tsayin kunshin, faɗi, da zurfin don tabbatar da ingantaccen tsabta a cikin haɗuwa na ƙarshe.

5.2 Tsarin Kafet ɗin da Aka Ba da Shawara

An ba da tsarin ƙasa da aka ba da shawara (girman kafet ɗin siyarwa) don tabbatar da ingantaccen haɗin gwiwa da daidaitawar injiniya yayin reflow. Bin waɗannan shawarwari yana taimakawa hana tombstoning (kayan aiki a tsaye) kuma yana tabbatar da kyakkyawar haɗin gwiwa na zafi da lantarki zuwa allon da'ira da aka buga (PCB).

6. Jagororin Siyarwa da Haɗawa

Kula da kyau yana da mahimmanci ga amincin na'urorin sanya saman.

6.1 Hankalin Danshi da Ajiya

LTE-S9711-J an ƙididdige shi Matsayin Hankalin Danshi Level 3 (MSL 3). Wannan yana nufin cewa kayan aikin da aka kunna za a iya fallasa su ga yanayin bene na masana'antu (≤30°C/60% RH) har zuwa awa 168 (mako guda) kafin siyarwa ba tare da haɗarin lalacewa da danshi ya haifar (popcorning) yayin reflow ba. Idan an buɗe jakar kariya ta asali, ana ba da shawarar kammala aikin reflow na IR a cikin wannan mako guda. Don ajiya mai tsawo a waje da marufi na asali, dole ne a adana kayan aikin a cikin akwati mai bushewa ko akwati mai rufi tare da busassun abu. Idan lokacin fallasa ya wuce mako guda, ana buƙatar tsarin gasa (kusan 60°C na aƙalla awa 20) kafin haɗawa don cire danshin da aka ɗauka.

6.2 Bayanin Siyar da Reflow

Na'urar ta dace da siyar da infrared reflow. Bayanin da aka ba da shawara yana bin ka'idojin JEDEC. Ma'auni masu mahimmanci sun haɗa da: yankin pre-heat daga 150°C zuwa 200°C har zuwa daƙiƙa 120, da matsakaicin zafin jiki bai wuce 260°C ba na iyakar daƙiƙa 10. Na'urar na iya jure matsakaicin sake zagaye biyu a ƙarƙashin waɗannan sharuɗɗan. Don siyar da hannu da ƙarfe, zafin ƙarshen bai kamata ya wuce 300°C ba, kuma lokacin tuntuɓar ya kamata a iyakance zuwa daƙiƙa 3 a kowane haɗin gwiwa. Yana da mahimmanci a bi ƙayyadaddun masana'anta na manna a haɗe tare da waɗannan jagororin.

6.3 Tsaftacewa

Idan ana buƙatar tsaftacewa bayan siyarwa, kawai dole ne a yi amfani da kaushi na barasa kamar isopropyl alcohol. Kaushi masu tsauri ko masu ƙarfi na iya lalata kunshin robobi ko ruwan tabarau.

7. Bayanin Kunshin da Oda

Daidaitaccen kunshin LTE-S9711-J yana kan tef mai faɗin 8mm mai ɗaukar kaya. An naɗe tef ɗin akan reel mai diamita 13-inch (330mm). Kowace reel tana ƙunshe da kusan guda 9,000. Ƙayyadaddun kunshin sun bin ANSI/EIA 481-1-A-1994. Tef ɗin yana da hatimin murfi don kare kayan aiki, kuma akwai iyaka na kayan aiki biyu da suka ɓace a jere (aljihuna fanko) a kowace reel. Dole ne a ƙayyade lambar sashi, gami da lambar kwandon (misali, LTE-S9711-J, LTE-S9711-K) lokacin yin oda don karɓar ingantaccen aikin ƙarfin radiant da ake so.

8. Bayanan Aikace-aikace da Abubuwan Ƙira

8.1 Kewayen Aikace-aikacen Yau da Kullun

A matsayin mai fitar da infrared, LTE-S9711-J na'ura ce da aka tuƙa ta hanyar ƙarfin lantarki. Dole ne a sami resistor mai iyakancewa na jeri don saita ƙarfin gaba da ake so (I_F) da kuma kare LED daga wuce gona da iri na ƙarfin lantarki, musamman lokacin da aka kunna daga tushen ƙarfin lantarki kamar baturi ko mai sarrafawa. Ana ƙididdige ƙimar resistor ta amfani da Dokar Ohm: R = (V_supply- V_F) / I_F. Ta amfani da V na yau da kullun_Fna 1.2V a 20mA, wadatar 5V zai buƙaci resistor na kusan (5V - 1.2V) / 0.02A = 190 Ohms. Dangane da resistor 200 Ohm zai dace. Don aikin bugun jini (misali, lambobin sarrafa nesa), dole ne kewaye tuƙi ya tabbatar da cewa ƙarfin kololuwa bai wuce ƙimar 1A ba kuma ya bi iyakokin faɗin bugun jini na 10μs da 300pps.

8.2 Abubuwan Ƙira don Aiki Mai Amincewa

Gudanar da Zafi:Ko da yake kunshin yana da ƙanƙanta, dole ne a mutunta iyakar raguwar wutar lantarki na 100mW. A matsakaicin ƙarfin DC na 50mA da V na yau da kullun_Fna 1.2V, raguwar wutar lantarki shine 60mW, wanda ke cikin iyakoki. Koyaya, a cikin manyan yanayin zafi ko wuraren da aka rufe, ingantacciyar ƙimar wutar lantarki tana raguwa. Isasshen yanki na tagulla na PCB (kafet ɗin taimakon zafi) na iya taimakawa wajen watsar da zafi.
Daidaitawar Gani:Ruwan tabarau na gefe yana buƙatar tsarin PCB mai kyau don tabbatar da cewa katakon IR yana tafiya daidai zuwa mai karɓa, mai nuna haske, ko yankin da aka yi niyya. Ya kamata a tuntuɓi zanen radiation.
Ƙarar Lantarki:A cikin aikace-aikacen hankali, ɓangaren mai gano na irin wannan kayan aiki na iya zama mai saukin kamuwa da hayaniyar hasken muhalli. Yin amfani da siginar IR da aka daidaita da kewayen mai karɓa masu daidaitawa shine dabarar gama gari don inganta rabo na sigina zuwa hayaniya da kariya daga tsangwama na hasken muhalli.

9. Kwatancen Fasaha da Bambance-bambance

LTE-S9711-J ya bambanta da kansa da farko ta hanyar kunshin fuskar gefe, wanda ba a saba da shi ba fiye da LED na infrared na sama. Wannan ya sa ya dace musamman da aikace-aikacen da aka ɗora PCB a tsaye ko inda hanyar IR ta yi layi daya da saman allon. Tsawon tsinkayarsa na 940nm shine ma'auni don sarrafa nesa na masu amfani, yana ba da daidaito mai kyau tsakanin hankalin mai gano hoto na silicon da ƙarancin fitar da haske mai gani. Idan aka kwatanta da masu fitarwa na 850nm waɗanda ake amfani da su a wasu lokuta a cikin sa ido, 940nm ba a iya gani gaba ɗaya. Samun kwandon aiki (J, K, L) yana ba da sassauci a cikin zaɓin ƙarfin gani, wanda zai iya zama fa'ida akan na'urorin da ke da ƙayyadaddun fitarwa guda ɗaya, kafaffen.

10. Tambayoyin da ake yawan yi (FAQs)

Q: Menene bambanci tsakanin wannan na'urar a matsayin mai fitarwa da mai gano?
A: Lambar sashi LTE-S9711-J tana nufin kayan aiki wanda zai iya zama mai fitar da infrared (LED IR). Photodiode ko phototransistor don ganowa zai sami lambar sashi daban, ko da yake suna iya raba kunshi iri ɗaya. Bayanin bayanin da aka bayar ya mayar da hankali ne kan halayen mai fitarwa.
Q: Zan iya tuƙa wannan LED kai tsaye daga fil ɗin microcontroller?
A: Yawancin filayen GPIO na microcontroller suna da iyakataccen ƙarfin samar da ƙarfin lantarki / nutsewa (sau da yawa 20-40mA). Duk da yake yana iya yiwuwa a 20mA, gabaɗaya yana da aminci kuma ana ba da shawarar yin amfani da transistor (misali, NPN ko MOSFET) azaman maɓalli da microcontroller ke tuƙa don sarrafa ƙarfin lantarki na LED, musamman don aikin bugun jini ko mafi girma.
Q: Me yasa kusurwar kallo ke da mahimmanci?
A: Kusurwar kallo tana ƙayyade ɗaukar hoto na sararin samaniya na katakon IR. Faɗin kusurwa (kamar 45°) yana da kyau ga aikace-aikacen da ke buƙatar ɗaukar hoto mai faɗi, kamar na'urori masu auna kusanci ko hanyoyin haɗin kai na ɗan gajeren zango inda daidaitawar ba ta da mahimmanci. Kusurwa mafi ƙuntata zai samar da ƙarfi mai da hankali don sadarwa mai tsawo ko kai tsaye.
Q: Ta yaya zan zaɓi lambar kwandon daidai?
A> Zaɓi kwandon bisa ga mafi ƙarancin ƙarfin radiant da ake buƙata don aikace-aikacenku. Bin J (3.0-4.5 mW/sr) shine matakin tushe. Idan ƙirar ku tana buƙatar ƙarin ƙarfin gani don tsawo ko don shawo kan asara mafi girma, zaɓi Bin K ko Bin L. Yi la'akari da ciniki tare da amfani da wutar lantarki da farashin da zai iya faruwa.

11. Misalin Aikace-aikace na Aiki

Yanayi: Ƙirar mai gano abu mai sauƙi.
Ƙira ta gama gari tana amfani da mai fitar da infrared da mai gano phototransistor daban-daban da aka sanya juna. Lokacin da wani abu ya zo kusa, yana nuna hasken infrared da aka fitar zuwa mai gano. Don wannan saitin ta amfani da LTE-S9711-J a matsayin mai fitarwa:
1. Kunshin fuskar gefe yana ba da damar duka mai fitarwa da mai gano su kasance a kwance akan PCB, suna fuskantar hanya ɗaya daidai da allon.
2. Ana tuƙa mai fitarwa tare da bugun jini (misali, bugun jini na 20mA a 1kHz) ta hanyar resistor mai iyakancewa don adana wutar lantarki da ba da damar gano aiki tare.
3. Tsawon tsinkaya na 940nm yana da kyau kamar yadda ba a iya gani kuma yawancin phototransistors suna da hankali gare shi.
4. Kusurwar kallo ta yau da kullun na 45° na mai fitarwa tana ba da filin ganowa mai ma'ana. Tazarar tsakanin mai fitarwa da mai gano, tare da ƙyallen da za su iya faruwa, an daidaita su don saita kewayon ganowa da kuma guje wa cudanya kai tsaye.
5. Kewaye mai karɓa yana ƙarfafawa da tace siginar phototransistor, yana neman ɓangaren 1kHz da aka daidaita wanda wani abu ya nuna. Wannan daidaitawar yana taimakawa ƙin hasken muhalli na yau da kullun (kamar hasken rana ko fitulun ɗaki).

12. Ka'idar Aiki

LTE-S9711-J, lokacin da yake aiki a matsayin mai fitar da infrared, diode ne mai fitar da haske (LED). Tsakiyarsa ita ce guntu semiconductor da aka yi da kayan kamar Gallium Arsenide (GaAs). Lokacin da aka yi amfani da ƙarfin lantarki na gaba, electrons da ramuka suna sake haɗuwa a cikin yanki mai aiki na semiconductor, suna sakin makamashi a cikin nau'in photons (ɓangarorin haske). Takamaiman abun da ke ciki (misali, GaAs) yana ƙayyade ƙarfin bandgap, wanda kai tsaye yana ayyana tsayin tsinkaya na hasken da aka fitar—a wannan yanayin, kusan 940nm, wanda ke cikin kewayon infrared. Ruwan tabarau na gefe an yi shi da epoxy mai tsabta wanda ke bayyana ga wannan tsawon tsinkaya kuma an ƙirƙira shi don siffanta tsarin radiation na hasken da aka fitar.

13. Trends na Fasaha

Filin kayan aikin infrared na daban-daban yana ci gaba da haɓakawa. Trends sun haɗa da haɓaka na'urori tare da mafi girman ƙarfin radiant da inganci daga girman kunshi iri ɗaya, yana ba da damar tsawo ko ƙarancin amfani da wutar lantarki. Hakanan akwai tuƙi zuwa ga ƙarfin daidaitawa mai sauri don saurin watsa bayanai a cikin aikace-aikace kamar IrDA ko hankalin gani. Haɗin kai wani trend ne, tare da haɗin gwiwar mai fitarwa-mai gano a cikin kunshi ɗaya yana zama gama gari don sauƙaƙa ƙirar na'urar hankali. Bugu da ƙari, ci gaban kayan kunshi da hanyoyin suna nufin inganta aikin zafi, yana ba da damar manyan ƙarfin tuƙi da aminci. Bukatar ƙananan ƙira ta ci gaba, yana haifar da haɓaka ƙananan ƙafafun kunshi yayin da ake kiyayewa ko inganta aikin gani.