[Marco] akatarisa akawanda metres. Nekudaro, anofunga HP3458A ndiye akanakisa, kunyangwe ivo vakaunzwa makore anopfuura makumi matatu apfuura muna 1989. Mumwe munhu akapa imwe nzira yekukanganisa uye yakaratidza maitiro asina kugadzikana paakatanga, saka aida zvimwe zvinhu.
Sekureva kwa [Marco], kodhi yekukanganisa inoratidza dambudziko neiyo yakawanda-inotsvedza analog-to-digital shandura, iyo inogadzira mita yakasarudzika. Mamita ane 8.5 manhamba, saka iyo yakajairika yekutendeuka chikamu hachirege kuicheka.
Nhau dzakanaka pamusoro pemagazini iyi nderekuti rinotipa chikonzero chekutarisa mukati mebhokisi. Yese mamaboard yemakeyboard mukati inotaridzika seyakaomarara seyenzi yemazuva ano pc Amaiboard. Mukati meiyi yekunyora renji, redunhu bhodhi rakafukidzwa mune yakagadziridzwa yakakwirira-yekuita kudzvinyirira network.
Iyo nzira yakajairwa yekushandura voltage kune nhamba inoshandisa nguva inodiwa kuti ubhadhare uye kuraswa capacitor, uye nguva inodiwa inomiririra voltage. Mamita anoshandisa akawanda manyorerwo enzvimbo, [Marco] anotsanangura mashandiro anoita met
Iyo tsika chip ine ic uye tsika inodzivisa network network. Kana ikatadza, mita inenge isingakwanise kugadzirisa pasina kuenda kunzvimbo yefekitori yekutenga nzvimbo itsva yedunhu kwemadhora zviuru zvitatu. Iyo Chip chip inoita kunge ichishanda nemazvo, uye kutsiva iyo comerat iyo inozivikanwa kutadza haina kubatsira.
Chii chinotevera? Tenga zvese zvikamu zvaungawana zve dunhu redunhu (anenge madhora zana), uye wobva watsiva zvikamu zvese. Isu tinoda nzira yake yekubvisa chidimbu chakawandisa chinotungamira panguva yekuvakazve maitiro. Pakutanga, izvi zvaiita sezvakanaka, asi kuzvireva kwekuzvifunga kwakundikana. Zvinoita sekuti tsika ic inogona kunge yakaputswa, saka yakazotsiva iyo yese Converter Bhodhi.
Izvi zvakachenesa chikanganiso chikuru, asi zvimwe zviyero zvichiri nematambudziko, zvichikonzera imwe bhodhi kuti igadziriswe. Dunhu iri mubvunzo unoita rms kutendeuka pane ac signals. Mamita ane nzira dzakasiyana siyana kuyera rms.
Vhidhiyo iyi inyaya yakakura yekuongorora, uye iwe uchadzidza zvakawanda nezve mmitres akanyanya ekugadzirisa. Kana zvese zvakajairika, tichaona zvimwe zvinoshamisa, zvakadai semazambiringa anoita semafuma uye mafeni ane ruzha.
Ini ndakamboshanda neinjiniya akagadzira iyo Analog chikamu. Akataura kuti uku ndiko kushanda kwakawanda, uye vakaita basa rakawanda kupfuura zvavaitarisira. Anotenda izvi chimwe chikamu chechikonzero nei HP / agilent / keyright atanga asi haana kumbopedza shanduro yekusimudzira. Chete malkeke ane dmm yakafanana, uye inogona kutaurwa kuti iyo 3458 ichiri yakanyanya kunaka. Izvo zvakaoma zvakanyanya kuwanda kuburitsa zvigadzirwa zviri nani.
Mumwe munhu akandiudza kuti avo8 ndiyo yakanyanya multimeter iyo mari inogona kutengwa nemari. Ingavezwa padombo, iro rakaburitswa naMosesi mugomo panguva yekukunda. Piri pachena ndakatsauswa.
Sezvo Avo
Ini ndinoshuva avo 8 pandakanga ndichiri kuyaruka, asi mitengo yavo yakanga isingagumi kugona kwangu. Makore makumi mana gare gare, ndine mk II pabhenji rangu. Mumamiriro ezvinhu anoshamisa kwandinoshanda pane radio radio, ini ndinofara kwazvo kushandisa mita neiyo chaiyo kutenderera.
Zvese izvi zviri nani sophistry nezve mamwe marere emiltimethes kubva pakusanzwisisika kwekusanzwisisika kwekushandisa kweHP33458A. Izvo hazvishandiswe kune general kukanganisa kwekutsvaga, asi nekuda kweMicononductor chimiro, uye kurongeka kwayo muUA uye UV huwandu hwakanakisa. Iyo 4-waya yekuyera basa (ona 6 inosungira matanda) uye hpib kudzora humbowo hwekuwedzera kuti inonyanya kushandiswa kuratidza midziyo yeMicononductor.
Ndakatenga chembere 5.5 Keithley ndokuzvibatanidza neshamwari. Mugore rapfuura, zvaive nyore chaizvo. Kubva pakufananidza transists kuti upedze iyo yekuisa kusakwana kwe Audio Amplifiers.
Fluke 77 inogona kunge iri yakanaka kwazvo-chiridzwa, asi haisi iyo "yakanyanya" chishandiso mune chero nharaunda. Kunyangwe zvaunoda ndezvipi zvaunoda, flight inotengesa zvirinani: mota? 88V. Nzvimbo Inoputika? 87V kuputika-kunopindirana nehasha nharaunda? 28 zviviri. General Indasitiri? 87V. Dziviriro yedata? 287/289. Maindasitiri ekugadzirisa maitiro? 789.
Kuwedzera kune mamwe mabasa ekuti iyo 77 isingakwanisi kuita zvachose, chero yeiyi zviridzwa zvinogona kubata chero basa iro rakapedzisira riine 77 rinogona kupedzisa, nekukwira kwakanyanya uye bandwidth. tembiricha? Under? Pwm Duty kutenderera / pulse upamhi? frequency? MicroMpere? Kutenderera kumhanya? Yechokwadi Rms Voltage? Rombo rakanaka.
Kana ichitengesa madhora mazana matatu paAmazon, hatigone kutaura kuti flue 77 isarudzo yebhajeti yeAmateurs. Ehe, zvakachipa kupfuura mamwe metres akanyorwa, asi izvo hazvitaure zvakawanda. (289 parizvino ari kutengeswa kune vanofarira mapato emadhora mazana mashanu). Chokwadi ndechekuti kana ukashandisa mita kuti uite mari, saka iyo chaiyo yekutsvedza inozozvibhadhara pachako. Zvimwe iwe unongoda mabasa makumi manomwe nemasere. Zvakanaka, tenga 77.
Chinhu chakafanana neizvi. Zvichida vashandisi vebhizinesi vanogona kutsanangura zvakanyatso kutsanangura zvavanoda zvezuva nezuva. Zvichida kambani yakatumira maNewintians 77s kunze, uye maneja aibata chimwe chinhu chinokwanisa (chakadai se 87s neTirmocouples) yemamiriro ezvinhu asingawanzoda kuongororwa tembiricha. Izvi zvinoita sechinhu chakangwara kuti uderedze mutengo wekukwira, njodzi nekuda kwekuba kana kurasikirwa, etc., asi iwe unogona kutanga kukwidziridzwa kweawa imwe neimwe yaunotambisa mita.
Hobbyists havawanzo kuve nezvakanyanya kutsanangurwa zvakatsanangurwa zvinodiwa, uye kana vane chirongwa chekudzikira chinogona kushandiswa kumedza mari dzinopfuura makore akati wandei. Kana isu tichifanira kutenga mita maviri, zvinowanzo kuve nani kutenga iyo yakakodzera yekutanga.
Nemwoyo murefu, ndakazowana yangu yakashandiswa fluke 189 (iyo yakatangira ye 289) paCraigslist pamutengo wakaderedzwa. Zvinoita sekunge hazvina kumbobvira zvabuda mubhokisi rayo uye hauna kuvharwa zvachose. Zano rangu kune mamwe maHobbyists nderokuvatengera iyo yakasarudzika yakashandiswa yakashandiswa fluke iwe yaunokwanisa. Izvo zvinogona kunge zviri makumi manomwe nemasere.
Ini handifi ndakanzwisisa mabasa emukati yemhando iyoyo yegiya. Sezviri pachena, akadaro, uye zvaive zvinonakidza kumuona kuti agadzirise chimwe chinhu icho vamwe vanhu vaigona kukanda mapfumo pasi.
Yangu zuva nezuva metres iri fluke 8060a, iyo yandakatenga kumashure muna 1983 Pakatenderedza 1990, ndaifanira kutumira yangu 8060 yekudzokera kuFlke nekuti iyo Chirevo Mutyairi Chipo chakavhunika, asi mushure mekugadziriswa, ndanga ndichishandisa 8060a nguva dzose. Ndainenge ichangobva kudzora kiyi 34461A 6.5 manhamba ebhenji mita. Munguva yekuyera kwenguva pfupi, kutsauka kweiyo fluke 8060 kubva ku 34461a mukati mayo yakavezwa bandwidth yaive mukati me1%. Izvi hazvina kushata mita iyo yave iri kuturika mukiti kwemakore makumi matatu kubvira pakupedzisira calibration.
Ini ndine chekare fluke 80sumthinumpthina. Anenge makore makumi maviri apfuura, ndakatenga yekupedzisira kutsiva lcd iyo fluke iyo yakavezwa iyo
Nekushandisa yedu webhusaiti uye masevhisi, iwe unobvuma zvakajeka kuiswa kwekuita kwedu, kushanda uye nekushambadzira makuki. dzidza zvimwe
Kutumira Nguva: Oct-21-2021
