[Marco] yarebye metero nyinshi. Icyakora, atekereza ko HP3458A nibyiza, nubwo byatangijwe mu myaka irenga 30 ishize mu 1989. Umuntu watanze umwe [Marco], ariko yerekanaga imyitwarire y'ubusa kandi yagaragazaga gusana.
Nk'uko [Marco], Kode y'amakosa yerekana ikibazo na Analope Analow-to-digital ihinduka, aricyo gituma metero idasanzwe. Meter ifite imibare 8.5, bityo icyiciro gisanzwe cyo guhinduka ntikizagabanya.
Ubutumwa bwiza kuri iki kibazo nuko iduha urwitwazo rwo kureba imbere mu gasanduku. Buri kibaho cyimbere kirasa nkikibaho cya PC igezweho. Muri ubu, intera y'ukuri, ikibaho cyumuzunguruko gikubiye mumiyoboro yo kurwanya imikorere yimbere.
Uburyo busanzwe bwo guhindura voltage kumubare ukoresha igihe gisabwa kugirango ushireho kandi usohore ubushobozi, kandi igihe gisabwa cyerekana voltage. Meter ikoresha abariruka benshi bashoboka, [Marco] basobanura uburyo Meter ikoresha ahantu hihuta kandi idahwitse kugirango uhitemo gusoma, hanyuma ugakoresha ahantu gahoro gahoro kandi ko kunonosora imibare yo hasi.
Chip Custom ifite IC numuyoboro wo kurwanya umuco. Niba binaniwe, Meter ntabwo ishoboka gusana utagiye mu kigo cya serivisi yo guswera uruganda kugirango ugure ikigo gishya cyumuzunguruko kumadorari 3000. Chip yihariye isa nkaho ikora neza, kandi isimbuza abagereranya izwiho kunanirwa idafasha.
Ni iki gikurikira? Gura ibice byose ushobora kubona kubijyanye ninama yumuzunguruko (hafi 100), hanyuma usimbuze ibice byose. Dukunda uburyo bwe bwo gukuraho ibice birenze urugero mugihe cyo kwiyubaka. Ubwa mbere, ibi byasaga nkaho bishoboka, ariko kwiyikira byarananiranye. Bigaragara ko umukiriya IC ishobora kuba yaracitse, amaherezo rero yasimbuje ikibaho cyose gihindura.
Ibi byakuyeho ikosa rikomeye, ariko ibipimo bimwe na bimwe byari bigifite ibibazo, bituma habaho irindi konama. Umuzunguruko uvugwa ukora ibimenyetso bya RMS kubimenyetso bya AC. Meter ifite uburyo butandukanye bwo gupima RMS.
Iyi videwo ninkuru ikomeye yigenza, kandi uzamenya byinshi kuri metero nziza. Iyo ibintu byose ari ibisanzwe, tuzabona ibintu bidasanzwe, nkinsinga zikora nk'akazi n'abafana bashya.
Nigeze gukorana na injeniyeri wateguye igice cya Analog. Yavuze ko ibyo ari imbaraga nyinshi, kandi bakoze imirimo myinshi kuruta uko babitekerezaga. Yizera ko ibi ari bimwe mumpamvu yatumye HP / Agilent / Keystight yatangiye ariko ntiyigeze arangiza verisiyo yo kuzamura. Gusa fluke afite dmm igereranya, kandi irashobora kuvugwa ko 3458 aribyiza. Biragoye cyane kuri misa itanga ibicuruzwa byiza.
Umuntu yambwiye ko avo8 aribwo muyoboro mwiza w'amafaranga ashobora kugura. Yibasiwe ku ibuye, Mose akuramo umusozi mu ntsinzi. Naragaragaye ko nabiyobye.
Kuva Avo8 idasanzwe kuruhande rwicyuzi, nasanze ibi ari ugusoma gushimishije ... http://www.richardsradios.co.uk/avo8.html
Nifuza Avo 8 Nkiri ingimbi, ariko ibiciro byabo ntibirenze ubushobozi bwanjye. Nyuma yimyaka 40, mfite Mk II II II ku ntebe yanjye. Mubihe bidasanzwe aho nkorera kuri radiyo ya valve, nishimiye cyane gukoresha metero hamwe nukwezi.
Izi myuga yose nziza kubyerekeye izindi miziki ituruka ku kutumva neza ibyateganijwe kuri HP3458A. Ntabwo ikoreshwa muri rusange yo gushakisha amakosa, ariko kuri semiconductor iranga, kandi ukuri kwayo muri UA na UV nkuru ni byiza. Igikorwa cyo gupima insinga 4 (reba 6 Guhuza Inyandiko) na HPIB kugenzura ni ibimenyetso byinyongera byerekana ko bikoreshwa cyane kugirango biranga ibikoresho bya SemiconduChutor.
Naguze kera 5.5 Keithley na Miedley na Libract yacyo ninshuti. Mu mwaka ushize, byari byiza rwose. Kuva mu myitozo ihuye kugirango upime intera ibangamira amplifiers amajwi.
Fluke 77 irashobora kuba igikoresho cyiza-rusange, ariko ntabwo ari "igikoresho" cyiza mubidukikije. Ntacyo cyaba ibisabwa byose, Fluke agurisha neza: imodoka? 88v. Ibidukikije biturika? 87v Ibidukikije-Ibidukikije Bikaze? 28 Babiri. Inganda rusange? 87v. Amakuru ya Data? 287/289. Igenzura ry'inganda? 789.
Usibye indi mirimo 77 idashobora gukora na gato, kimwe muribi bikoresho birashobora gukora umurimo uwo ariwo wose fluke 77 urashobora kuzuza, hamwe nukuri na mutargth. ubushyuhe? Gutwara? Inshingano ya PWM / Ubugari? Inshuro? Micrompere? Umuvuduko uzunguruka? RMS NYAKURI ALOTAGE? amahirwe masa.
Iyo igurisha amadorari 300 kuri Amazone, ntidushobora no kuvuga ko fluke 77 ari amahitamo yingengo yimari. Birumvikana ko bihendutse kuruta ibindi metero yanditse, ariko ibyo ntibivuga byinshi. (289 kuri ubu bigurishwa mubibanza bifuza $ 570). Ikigaragara ni uko niba ukoresha metero kugirango ubone amafaranga, noneho fluke nziza izahita yishyura vuba. Birashoboka ko ukeneye imirimo 77 gusa. Sawa, gura 77.
Ikintu ni nkiki. Ahari abakoresha b'ubucuruzi barashobora gusobanura neza ibyo bakeneye buri munsi. Ahari isosiyete yohereje abatekinisiye 77s, kandi umugenzuzi yari afite ikintu gishoboye (nka 87s hamwe na tremocouples) kubihe bidasanzwe bisaba gupima ubushyuhe. Ibi bisa nkaho ari ikintu cyubwenge kugabanya igiciro cyo hejuru, ibyago kubera ubujura cyangwa gutakaza, nibindi, ariko urashobora gutangira kuzamura buri saha usenya metero.
Izitirinzi zidakunze kugaragara neza, nta nubwo bafite gahunda yo guta agaciro ishobora gukoreshwa mu mafaranga mu myaka myinshi ishize. Niba tugomba kugura metero ebyiri, mubisanzwe nibyiza kugura iburyo bwa mbere.
Ihangane, amaherezo nabonye fluke yakoreshejwe 189 (uwabanjirije 289) kuri Craigslist ku giciro cyagabanijwe. Birasa nkaho itigeze iva mu gasanduku kayo kandi itamenyekana rwose. Impanuro zanjye kubandi bashinzwe kuba abahanga ni ukugura amazi akoreshwa cyane ushobora kugura. Ibyo bishobora no kuba 77.
Sinzigera numva imikorere yimbere yubwoko bwibikoresho. Biragaragara, yarabikoze, kandi byari bishimishije cyane kumukosora bikosora ikintu abandi bantu bashobora kureka.
Buri munsi witwaze metero 8060a, naguze mu 1983. Igihe Simpson 260 yategekaga igikoresho cya technicique, cyari igikoresho cyo guhindura umukino, naho 8060a yari akiri mwiza. Ahagana mu 1990, byabaye ngombwa ko twoherereza uko ari 8060 kagarutse kuri Fluke kubera ko Chip yo mu mushoferi yavunitse, ariko nyuma yo gusanwa, nakoresheje 8060a buri gihe. Mperutse kuvuza Keysight 34461a 6.5 metero yatsinze. Mugihe cyo gupima voltage yigihe gito, gutandukana kwa fluke 8060 uhereye kuri 34461a mumasoko yacyo yari muri 1%. Ibi ntabwo ari bibi kuri metero zamanutse mubikoresho imyaka 30 kuva kalibrasiyo yanyuma.
Mfite fluke ishaje 80sumthinTumpthina. Hashize imyaka igera kuri 20, naguze gusimburwa bwa nyuma LCD iyo fluke yari ifite mububiko!
Ukoresheje urubuga na serivisi zacu, wemera neza gushyira mubikorwa byacu, imikorere na kuki zamamaza. Wige byinshi
Igihe cyagenwe: Ukwakira-21-2021
