Gaisuwa!
Ina ƙara ɗan gajeren labarin kan batun zabar ƙaƙƙarfan oscilloscope na gida na matakin shigarwa don aiki da abubuwan sha'awa.
Me yasa za mu yi magana game da aljihu da ƙananan ƙananan - saboda waɗannan su ne mafi yawan zaɓuɓɓukan kasafin kuɗi. Oscilloscopes na Desktop sun fi girma, na'urori masu aiki, kuma, a matsayin mai mulkin, samfuran tsada masu tsada ($ 200-400 ko fiye) tare da tashoshi 4 tare da ayyuka da yawa.
Amma ƙananan samfura tare da tashar 1 don ma'auni mai sauƙi da ƙimar siginar sigina za'a iya saya akan ainihin $ 20 ... $ 40.
Don haka, manyan halayen fasaha na oscilloscopes na aljihu sune bandwidth mai aiki, wanda aka auna a cikin MHz, da kuma mitar samfur, wanda ke shafar ingancin ma'auni kai tsaye.
A cikin wannan labarin zan yi ƙoƙarin bayyana oscilloscopes da ni kaina na mallaka kuma in ba da wasu ribobi da fursunoni na waɗannan samfuran.
Zaɓin farko wanda yawancin masu son rediyo suka shiga shine oscilloscope bisa ATmega microcontroller; Ali yana da zaɓuɓɓuka da yawa, gami da haɗin kai, misali, DSO138. Ci gabansa dangane da STM32 microcontroller ana kiransa DSO150.
- Wannan kyakkyawan oscilloscope ne ga mai son radiyo mai matakin shigarwa. Kit ɗin ya haɗa da binciken P6020. Oscilloscope kanta yana da bandwidth kusan 200 kHz. Gina kan tushen STM32, ADC har zuwa 1M samfurori. Kyakkyawan zaɓi don gwada sauƙin samar da wutar lantarki (PWM) da hanyoyin sauti. Ya dace da masu farawa, alal misali, don nazarin siginar sauti (saitin amplifier, da sauransu). Daga cikin rashin amfani, na lura da rashin iyawa don adana hoton oscillogram, da kuma karamin bandwidth.
Технические характеристики:
- Ƙimar samfur na ainihi: 1 MSa/s
- Analog Bandwidth: 0 - 200 kHz
- Matsakaicin hankali: 5-20 mV/div
- Matsakaicin ƙarfin shigarwa: 50V max. (1x bincike)
- Tsawon lokacin sharewa: 500s/div - 10 µs/div
Idan ana so, zaku iya samun sigar mara siyar ko da mai rahusa. Ya dace da koyan soldering "tare da ma'ana".
Amma abin sha'awa da sauri ya wuce kuma ya ci gaba zuwa samfurori masu mahimmanci.
A farkon 2018, na gamu da ɗaya daga cikin shahararrun zaɓuɓɓuka don oscilloscopes matakin shigarwa - mai sauƙi, amma ba mara kyau ba.
DSO188 oscilloscope mai sauƙi ne "mita nuni" tare da tashar guda ɗaya, babu ƙwaƙwalwar ajiya, amma tare da nunin launi, baturi 300mAh da ƙananan girman. Fa'idarsa ita ce ƙaƙƙarfan ƙarfinsa da ɗaukar nauyi, kuma madaurin mitar ya isa ga yawancin aikace-aikacen (misali, saita kayan aikin sauti).
A ƙaramin farashi ($30), yana nuna sigina a 1 MHz (samfurin 5MSA/s). Ana amfani da binciken MMCX don aiki, amma kit ɗin ya haɗa da adaftar MMCX-BNC. An shigar da 5MSPS ADC daban, bandwidth ɗin ya kai 1 MHz, an haɗa shari'ar daga bangarori, wanda yayi kyau sosai. A gefen ƙari, na lura da ƙananan girman da ingantaccen bandwidth, idan aka kwatanta da DSO150 (1 MHz), da kuma ƙananan girman. Mafi dacewa don amfani tare da mai gwadawa na yau da kullun. Sauƙaƙe ya dace cikin aljihunka. Daga cikin minuses, shari'ar tana da buɗaɗɗen ƙira wanda ba a kiyaye shi daga tasirin waje (yana buƙatar gyara), da kuma rashin iya canja wurin adana hotuna zuwa kwamfuta. Kasancewar mai haɗin MMCX ya dace, amma don cikakken aiki zaka buƙaci adaftar BNC ko bincike na musamman. Don kuɗin, wannan zaɓi ne mai kyau na matakin shigarwa.
Технические характеристики:
- Ƙimar samfur na ainihi: 5 MSa/s
- Analog Bandwidth: 0 - 1 MHz
- Matsakaicin hankali: 50 mV/div ~ 200V/div
- Matsakaicin ƙarfin shigarwa: 40V (bincike 1X), 400V (bincike 10X). Babu ginanniyar sigina mai motsi.
- Kewayon share lokaci: 100mS/div ~ 2uS/div
Idan megahertz ɗaya bai isa ba, zaku iya kallon oscilloscopes na aljihu a cikin mahalli tare da haɗin BNC, misali, oscilloscope na aljihu mara tsada DSO FNISKI PRO.
Wannan zaɓi ne mai kyau don kuɗin ku. Band 5 MHz (sine). Yana yiwuwa a ajiye hotuna zuwa ƙwaƙwalwar ajiyar na'urar.
Технические характеристики:
- Ƙimar samfur na ainihi: 20 MSa/s
- Analog Bandwidth: 0 - 5 MHz
- Matsakaicin hankali: 50 mV/div ~ 200V/div
- Matsakaicin ƙarfin shigarwa: 40V (bincike 1X), 400V (bincike 10X). Babu ginanniyar sigina mai motsi.
- Kewayon share lokaci: 50S/div ~ 250nS/div
(tare da bandwidth har zuwa 10 MHz).
Zan ɗauki zaɓi na farko (tare da crocodiles) kuma in sayi ƙarin bincike daban. Hanyar haɗi zuwa binciken yana ƙasa.
Dangane da sakamakon amfani, Ina so in lura da yanayin jin daɗi da babban nuni. Siginar gwaji a 5 MHz (sine) yana nunawa ba tare da wata matsala ba, sauran sigina na lokaci-lokaci da na lokaci-lokaci suna nunawa har zuwa 1 MHz.
Idan bandwidth sama da 1 MHz ba shi da mahimmanci kuma ba kwa buƙatar yin aiki tare da manyan ƙarfin lantarki, to DSO FNIRSI PRO tare da mai haɗin BNC zaɓi ne mai kyau. Yana amfani da daidaitattun bincike kuma ana iya amfani dashi azaman binciken oscilloscope na aljihu mai sauri - poke kuma duba idan musayar, microcircuit, da sauransu suna raye. Sannan ku taka bayan babban oscilloscope, ko ɗaukar mara lafiya a kan tebur kuma buɗe shi.
Amma idan kuna buƙatar ɗan ƙaramin bandwidth, kula da maras tsada
DSO168 oscilloscope yana da wani sabon salo wanda yayi kama da shahararrun yan wasan MP3. Wannan duka ƙari ne (jikin ƙarfe mai salo) da ragi na na'urar. Ba mafi kyawun zaɓi na mai haɗawa ba - MiniUSB don cajin baturi. Zan kuma lura da haɗin ta hanyar jack 3.5 mm - babban hasara na wannan ƙirar.
Технические характеристики:
- Ƙimar samfur na ainihi: 50 MSa/s
- Analog Bandwidth: 0 - 20 MHz
- Matsakaicin hankali: 50 mV/div ~ 200V/div
- Matsakaicin ƙarfin shigarwa: 40V (bincike 1X)
- Kewayon share lokaci: 100S/div ~ 100nS/div
DSO168 na'ura ce mai ban sha'awa don farashin sa.
Yafi kyau fiye da adadi mai yawa na DSO138, waɗanda aka gina akan tushen microcontrollers tare da ginanniyar ADC (200kHz).
Wannan samfurin DSO168 yana da keɓantaccen AD9283 ADC, wanda ke ba da ingantaccen bincike na sigina har zuwa 1 MHz. Har zuwa 8 MHz, ana iya amfani da wannan na'urar, amma a matsayin "mai nuni" na sigina, ba tare da wani ma'auni mai mahimmanci ba. Amma har zuwa 1 MHz - babu matsala.
Kit ɗin ya haɗa da daidaitaccen bincike na P6100 BNC, da kuma adaftar daga jack 3.5mm zuwa BNC.
DSO168 oscilloscope yana da bandwidth na 20 MHz (a mitar samfur na 60MSA/s), ba mafi nasara ba, amma ƙari ko žasa m case ala iPod, ginannen baturi 800 mAh (ana iya yin aiki daga USB). Ana ƙara kamanceceniya da mai kunnawa ta hanyar bincike ta hanyar jack 3,5 mm (akwai adaftar BNC-3.5mm). Babu ƙwaƙwalwar ajiya don adana nau'ikan igiyoyi. Ina so in lura da kuskuren ƙira - jack ɗin 3,5 mm ba a yi niyya don watsa siginar microwave ba; akwai murdiya a cikin siginar a mitoci sama da 1 MHz. Don haka na'urar tana da ban sha'awa, amma zan zaɓi wani zaɓi daban.
Na gaba, Ina ba da shawarar duba wani samfurin mara tsada na DSO338 oscilloscope tare da bandwidth na 30 MHz.
Wannan oscilloscope ne mai girman baturi mai girman aljihu don tashoshi ɗaya tare da mitar samfurin kamar 200Msps. Halayen ba su da kyau, saboda yawancin wannan samfurin ya isa ga idanu. Akwai tashoshi ɗaya, nunin yana da kyawawan kusurwoyi masu kyau, kuma lokacin aiki ya kai awanni 8 akan caji ɗaya ci gaba.
Технические характеристики:
- Ƙimar samfur na ainihi: 200 MSa/s
- Analog Bandwidth: 0 - 30 MHz
- Matsakaicin hankali: 50 mV/div ~ 200V/div
- Matsakaicin ƙarfin shigarwa: 40V (bincike 1X), 400V (bincike 10X). Babu ginanniyar sigina mai motsi.
- Kewayon share lokaci: 100mS/div ~ 125nS/div
Ana amfani da daidaitaccen bincike na P6100 BNC don aunawa.
Oscilloscope yana aiki sosai a mitoci sama da 10-20 MHz.
Kyakkyawan zaɓi, amma an ba da kuɗin sa, za ku iya kallon wasu samfurori.
Misali, zaku iya siyan ɗan tsada
Wani sabon samfurin kuma ɗayan mafi kyawun kuɗi - tashar oscilloscope 100 MHz guda ɗaya tare da ƙwaƙwalwar ajiya. Yawan samfurin ya kai 500 msps.
Oscilloscope yana ɗaya daga cikin mafi "ƙarfi" da "ƙaddara" a cikin kewayon farashinsa. Akwai tashar BNC 1, amma oscilloscope na iya nuna siginar siginar sine har zuwa 100MHz. Sauran sigina na lokaci-lokaci da na lokaci-lokaci suna kallon al'ada har zuwa 70-80 MHz.
Oscilloscope ya zo tare da bincike mai kyau na P6100 tare da mai rarraba 10x da bandwidth har zuwa 100 MHz, da kuma akwati don ajiya da ɗauka.
Технические характеристики:
- Ƙimar samfur na ainihi: 500 MSa/s
- Analog Bandwidth: 0 - 100 MHz
- Matsakaicin hankali: 50 mV/div ~ 100V/div
- Matsakaicin ƙarfin shigarwa: 80V (bincike 1X), 800V (bincike 10X). Babu ginanniyar sigina mai motsi.
- Kewayon share lokaci: 50S/div ~ 6nS/div
Oscilloscope yana jure wa sigina mara muni fiye da babban ɗan'uwansa Rigol.
Zan lura da rashin haɗin gwiwa tare da kwamfutar (ɓangare wannan ba ragi ba ne, tunda babu buƙatar warewar galvanic), da kasancewar tashoshi ɗaya kawai don aunawa.
DSO Fniski 100MHz zabi ne mai kyau, musamman idan babu na'urar da ta dace kuma batun farashi yana da girma. Idan zai yiwu a ƙara, yana da kyau a ƙara da ɗaukar wani abu akan tashoshi biyu kuma tare da ikon adana sakamakon.
Buga na 2019 oscilloscope ne mai ɗaukar hoto tare da mitar 40 MHz (akwai samfurin 2C72 har zuwa 70 MHz) tare da tashoshi biyu da janareta mitar. Multimeter da aka gina a ciki. Ya zo da jakar ɗauka. Farashin daga $99.
Kit ɗin ya ƙunshi duk abin da kuke buƙata + akwati mai ɗauka. Matsakaicin ƙima har zuwa 250MSa/s shine mafi kyawun sakamako na oscilloscopes mai ɗaukar hoto. Akwai nau'ikan 2C42 / 2C72 ba tare da ginanniyar janareta ba, amma ba su da ban sha'awa sosai dangane da farashi da aiki.
Технические характеристики:
- Ƙimar samfur na ainihi: 250 MSa/s
- Analog Bandwidth: 0 - 40 MHz
- Matsakaicin hankali: 10 mV/div ~ 10V/div
- Matsakaicin ƙarfin shigarwa: 60V (bincike 1X), 600V (bincike 10X).
- Kewayon share lokaci: 500S/div ~ 5nS/div
Oscilloscope ya ɗan fi na baya tsada, amma samfurin 2Dx2 yana sanye da janareta mitar. Hoton da ke ƙasa yana nuna ƙarni na 1 MHz sine.
In ba haka ba, Hantek bai fi ƴan uwansa muni ba. Zan lura da kasancewar ginanniyar multimeter, wanda ya sa wannan ƙirar ta zama na'urar 3-in-1.
Oscilloscopes da nake da su sun ƙare, amma zan nuna ƙarin samfurin guda ɗaya wanda ke da hakkin rayuwa. A cikin wannan kewayon farashin akwai dadi da inganci .
Технические характеристики:
- Ƙimar samfur na ainihi: 200 MSa/s
- Analog Bandwidth: 0 - 30 MHz
- Matsakaicin hankali: 10 mV/div ~ 10V/div
- Matsakaicin ƙarfin shigarwa: 60V (bincike 1X), 600V (bincike 10X).
- Kewayon share lokaci: 500S/div ~ 5nS/div
Ina ba da shawarar kula da kayan haɗi masu amfani don oscilloscope:
Na'urori masu ɗaukar nauyi irin waɗannan su ne abin da nake yawan amfani da su. Mafi dacewa, musamman lokacin saita na'urori daban-daban, dubawa, ƙaddamarwa. Zan iya ba da shawarar ɗaukar nau'in DSO150, ko ma mafi kyau, irin wannan DSO138 (200kHz) a cikin sigar DIY don koyon soldering da kayan yau da kullun na kayan lantarki na rediyo. Daga cikin samfurori masu aiki, Ina so in lura da DSO Fniski 100MHz a matsayin oscilloscope tare da mafi kyawun farashi / aiki bandwidth rabo, kazalika da Hantek 2D72 a matsayin mafi yawan aiki (3-in-1).
source: www.habr.com