Sida loo isticmaalo multimeter ah in "caagagga"? Sida loo wici fiilooyin multimeter

meter waa aalad lagu qiyaaso korontada, la mid ah sida kala duwan si loo ogaado meel fog, waqti, ama saacadda miisaanka dheelitirka. Its farqiga been in xaqiiqda ah in ay tahay multi-functional, ie cabbiri kartaa cabirkiisu kala duwan. multimeters badankood waxay leeyihiin biiro kuu oggolaanaysa in aad doorato waxa aad u baahan tahay si loo cabbiro.

Cabiraya qalabka?

Multimeters awood u ah inay ku qiyaasto hadda, impedance iyo danab, oo ay gacanta ku sii circuit by codsanaya signal a ay dhacdo in laba wax koronto ku xiran. Tani waa mid waxtar leh, tusaale ahaan, marka rakibidda taararka iyo maroojin ama fiilooyin, kabida. beep A muujinaysaa in xidhiidhka ka jirto, oo aan waxba laga jaray. Waxaad kaloo isticmaali kartaa qalabka si ay u hubiyaan in xidhiidhka ka dhexeeya labada korontada kirishbooyada maqan yahay. Tani waxay kaa caawin doontaa in la ogaado circuit gaaban.

Multimeter tijaabin kartaa dioska-. Waxay u eg yihiin hal jid waalka, hadda la soo maray jiho keliya hal. saarayaasha kala duwan ee fulinta kala duwanaan karaan. Marka la dioska- shaqada haddii ay tahay mid aan la hubin in uu ka mid ahaa silsilad ama ay xaalad wanaagsan, waxaa macquul ah ee imtixaanka ahaan doonaa waxa ugu soo dhaweynayaa. Haddii multimeter ahaatid uu leeyahay feature si aad u ogaato sida saxda ah sida ay u shaqayso, waa in aad ka akhrisan tilmaamaha.

qalabka qaali More karaa, tusaale ahaan, si aad u hubiso iyo cabbiro dabeecadaha qaab of capacitors iyo transistors.

waxyaabaha aasaasiga ah ee injineernimada korontada

Macluumaad ku saabsan sida loo isticmaalo multimeter ah in "caagagga". Resistance, danab, hadda - beegyada in la qiyaasi karo in halbeeg calaamadaha loo qoondeeyey. Tusaale ahaan, masaafada u muujiyay in mitir ama calaamad m In u korantada .:

1. Dhur muujinayaa ciidanka oo electrons waxaa lagu riixay marayo silsiladda. qiimaha weyn u dhiganta codsiga xoog dheeraad ah. Qiyaasay in volts (V).
2. xoog hadda muujiyeen sida electrons dhaqaaqin iyada oo wareeg ah. Qiimaha A weyn u dhiganta isticmaalka weyn oo koronto ah. amperes cabbiro (A).
3. Resistance ku muujinayaa sida electrons adag tahay in la dhex maro wax. The sare waa, ayaa in ka badan way adag tahay in ay gudbaan hadda. Muujiyeen in ohms (Ω, omega).

Astaanta muujinaysa unit waa ka variable ee isla'egta kala duwan. Tusaale ahaan, sharciga Ohm ayaa muujiyay sida:

• U = IR, halkaas oo aan - hadda, U - danab iyo R - iska caabin ah.

Volt, Ampere iyo Ohm muujinaysaa V, A, Ω.

Si loo fahmo sida loo isticmaalo multimeter ah ee "Kadaabad" waxay noqon doontaa mid waxtar leh si ay uga caawiyaan in eegtahay fudud. dhaqdhaqaaq la mid ah hadda ka mid ah biyaha ee beebka. Inta badan waxaa ka mid ah waa isticmaalka hadda dheeraad ah. Cadaadiska abuuraa mooshin biyaha, - danab a; cadaadis sarreeya oo ka xoog "riixo" biyaha, sii kordhaya hadda. Resistance - caqabad ku biibiile. Tusaale ahaan, tuubo, burburka dhaafiyay, biyaha duuli doona dhib. Its iska caabin noqon doono ka badan in biibiilaha, free ka xanibaado.

AC iyo DC

macluumaad kale oo aad u baahan tahay si ay u bartaan inay sida loo isticmaalo multimeter ah. Waayo, "Kadaabad" daneeyn doonaan inay ogaadaan in hadda joogto ah u guurayaan oo isku jiho ah. Its il laga yaabaa, tusaale ahaan, batari caadiga ah. multimeters kala duwan kala duwan loogu yeero danab DC iyo hadda. Sida caadiga ah, this DCV iyo DCA ah, ama xariiq toosan ka badan V iyo A.

Talantaalli ah hadda badala jihada marar badan per labaad. In network guriga, waxay dhacdaa 50 jeer (ee Maraykanka - 60 jeer labaad). In multimeters kala duwan danab AC iyo hadda waxaa la tilmaamay kala duwan. Sida caadiga ah, ACV iyo ACA ama line a galgaloolan (~) u dhow ama ka sare V iyo A.

xidhiidh la is barbar socda oo taxane

Marka la isticmaalayo multimeter ah loo baahan yahay si loo ogaado si ay xidhiidh, in waxay ku xiran tahay waxa aad rabto in la qeexo. circuit hadda serial dhex maraya kasta oo ay, element isku. Sidaas darteed, waa sequentially loo baahan yahay in lagu xiro qalab in lagu qiyaaso. In circuit ah isku midka ah, element kasta uu danab la mid ah. Sidaa darteed, meter cabbirka ay waa in la xiran ee isku midka ah.

Waa maxay samayn calaamadaha on guddi hore?

macluumaad kale oo aad u baahan tahay in aad ogaato ka hor inta la isticmaalayo multimeter ah. Waayo, "Kadaabad" noqon doonaa adag tahay in la kala sooco iyada oo loo marayo hannaanka ka mid ah calaamadaha on guddi hore, gaar ahaan haddii ay jiraan fariimihii lahayn. Ha welwelin. Waxay matalayo V cutubyo ka, A, Ω.

Inta badan ton multimeters isticmaalaa horgalayaasha in dhaqmaan oo la xiriirta ka halbeegyada wax lagu cabbiro awoodda iyo sidoo kale fogaanta iyo dhulka. Meter, tusaale ahaan, - a fogaan unit kilomitir - 1000 m, millimeter -. 1/1000 m Isla sidaas u dhaqmaan kiilo, milligram oo garaam oo miisaan. The horgalayaasha ton ugu badan ee loo isticmaalo in multimeters:

• μ (micro) = 10 ^-6;
• m (milli) = 10 ^-3;
• k (kilo) = 10 ^3,
• M (ahee) = ¹⁰ June.

Kuwani horgalayaasha ton waxaa loo isticmaalaa Amps, volts iyo ohms. Tusaale ahaan, 200kΩ - laba boqol kiloomah, taas oo u dhiganta 200 000 ohms.

Xadaynta

multimeters Qaar ka mid ah waxaa si toos ah u Hagaajinay, qaar kalena waxay u baahan yihiin rakibo buuga kala duwan qiyaaseed. Xaalada danbe, waa in aad had iyo jeer ka xulo kala duwan oo wax yar ka weyn yahay qiimaha la filayo. Waxa ay u muuqataa taliye iyo qiyaas cajalad. Haddii aad rabto in lagu cabiro wax waa 60 cm oo dherer ah, line 50-centimitir waa mid aad u gaaban, oo ay leeyihiin si ay u isticmaalaan qiyaas cajalad.

Isla sidaas u dhaqmaan multimeter ah. Ka soo qaad in aad rabto in aad ku qiyaastaan ayaa danab ee batari AA ah, qiimaha oo la filayo in uu noqdo 1.5 V. Waxaa jira fursado 200 MV, 2 V, 20 V, 200 V, 600 V, 200 MV waxaa aad u yar, aad u baahan tahay in ay doortaan qiimaha soo socda sare of 2 V. Xitaa weyn fursado aad u badan tahay, oo ay doorashada u horseedi lahaa in khasaare ah oo sax ah (waa in la isticmaali cajalad qiyaaseed 5-meter oo la kala qaybsanaanta centimitir oo aan millimeter a).

Maxaad samaynaysaan oo u characters kale?

The tilmaamood ee soo socda ayaa badanaa loo isticmaalaa in lagu qiyaaso aaladaha:

1. line galgaloolan. Waxay ku taallaa agagaarka calaamadaha V, A si wadajir ah ula horgalayaasha ton. Khaanadaha ay tahay in measurand a variable.
2. line The adag, line dhibcaha. Waxay u dhow ama ka sare V ama A waa iyo B tusinaysaa danab joogto ah ama hadda.
3. taxane ah oo labada cirif isku midka ah. imtixaanka oo ka mid ah isku xirnaanta korantada. Wixii macluumaad ah oo ku saabsan sida loo wici fiilooyin multimeter hoos ku qeexan.
4. AC, DC. Lines loo isticmaali karaa halkii magaca soo gaabiyo ee talantaalli (AC) iyo DC (DC) hadda.
5. Saddex Xagalka la khadadka barbaro dhex. Waxaa si ay u tijaabiso dioska- isticmaalo.

xulashada Options

Maxay noqonayaan multimeter wanaagsan? Jawaab-celinta ka users ogolaan in loo qoondeeyo qaababka ay soo socda si aad taas oo dareenka in la bixiyo, in meesha ugu horeysa:

• fiilooyin waa ma jebin off ka dib markii dhowr isticmaalka;
• helitaanka automatic xidhan-off,
• sahlanaato ah meesha uu badhamada iyo Xidhiidhiyayaasha;
• doorashada si toos ah kala duwan oo qiyaastuna wuxuu,
• size ku filan screen LCD,
• class saxnimada,
• lagu qiyaaso safafka.

Multimeter: sida in ay ku xidhmaan fiilooyin

Cabirka qalabka iibin la fiilooyin cas iyo madow si probes ah. Mid ka mid ah ay dhammaad ku xiran multimeter ah, baaritaan loo isticmaalo si ay u tijaabiso Bannaanka. Red go'aansaday in ay isticmaalaan baaritaan si wanaagsan oo madow ah - qiimaha xun.

Inkasta oo silig ka dhigeen 2 oo keliya, meelaha ay u badan ku xidhmaan, taas oo keeni kartaa wareer. Hab in ay ku xidhmaan fiilooyin ay ku xidhan tahay shayga cabbirka iyo model ah, sidaa darteed, waayo, caddaynta waa in tixraac guide user ah.

multimeters intooda badan laga ilaaliyo fiyuuska weyn ee hadda taas oo ku dhalaashay oo jebiyo Bannaanka. Tani waxay ka hortagi doonaa failure qalabka.

Haddii probes ku lifaaq element ama qaybta Bannaanka, bandhigay digital muujinaysaa natiijada. biiro dhigaya danab, hadda ama iska caabin ah, iyo sidoo kale xaddidaya cabbirka.

Determination of daacadnimada xarunta

Sida loo wici fiilooyin multimeter? Si arrintan loo sameeyo:

• Geli silig cas in Jack Ω ah, iyo madow - in COM ah;
• dhigay biiro si uu calaamad u signal audio ee foomka of cirif isku midka ah;
• xirmaan probes si dhibcood imtixaanka;
• qalabka cod doonaa haddii xidhiidhka ka dhexeeya labada probes jira (iska caabin m. e. dhow eber) iyo aamuseen in ay ka maqan doonaa.

Multimeter: User cabbirka iska caabin

Dhibaatadu waxay la resistors waa in saarayaasha rabto isticmaala in la xasuusto midabka ah ee kaas oo la encoded by sifooyinka ay. Halkan sida loo isticmaalo multimeter ah si loo ogaado iska caabin ah:

• Geli baaritaanka sunta rasaasta cas ilaa W, iyo madow - in COM ah;
• xirmaan raadad la iska caabin ah la xiriir;
• dooro xad la doonayo cabiraada;
• akhri qiimaha.

Haddii tilmaame muujiyaan doonaa 1, xadka waa mid aad u yar yahay. Waa inaad dhigay biiro qiimaha sare ilaa ilaa reading a sax ah. Haddii qiimaha ku dhow yahay inuu eber, markaas xadka uu aad u sarreeyo. Waxa loo baahan yahay in la yareeyo si loo helo cadaymo dhab ah. Haddii qiimaha weli 0 waa at xadka ugu hooseeya, caabiga laga cabbiro waa eber.

Determination of stress

Si loo qiyaaso danab DC waa in ay ahaadaan:

• geliso hogaanka cas galay V ah, oo madow ah - in COM ah;
• xirmaan baaritaan cas si ay dhinaca wanaagsan ee batari ama wareeggeedii, iyo madow - la taban ama dhulka,
• xaddido biiro qarka u saaran inuu booskiisa ku qiyaasay danab DC ee kala duwan ee laga filayo,
• tirin akhrinta.

On unit soo socda si ay saldhig ay u sheeg danab ugu badan ee hadda iyo. circuit multimeter dhaawac laga yaabaa Haddii qiimayaashan.

Si loo go'aamiyo danab talantaalli ah, waxaa lagama maarmaan ah in ay doortaan xadka ku haboon. In nidaamka this xarunta ah probes ah ma aha mid muhiim.

cabiraada hadda

• Geli silig madow in terminal COM.
• Geli silig cas galay Afyare u dhiganta kala duwan ee loogu talagalay qiyaaseed. Multimeter 832, tusaale ahaan, waxa uu leeyahay Xidhiidhiyayaasha, waayo, hadda ilaa 200 MA iyo 20 A.
• Calan xadka beddelato kala duwan oo lagu cabbiro DC loogu tala galay ka.
• AQRINTA.

Waa in la raaci waayo shuruudaha xadidaysa hadda la hubiyaa tilmaamay on qalab ah. Haddii kale shaqeeyaan fiyuuska haddii loo dhigay qiyaaseed multimeter a kala duwan oo la siiyo ama circuit dhaawac laga yaabaa.