Tafole ea matšoao a Multimeter: tlhaloso

Multimeter ke eng?

Multimeter ke sesebelisoa sa ho lekanya sa mantlha se ka lekanyang litšobotsi tse fapaneng tsa motlakase joalo ka voltage, ho hanyetsa le hona joale. Sesebelisoa sena se boetse se tsejoa e le volt-ohm-millimeter (VOM) hobane se sebetsa e le voltmeter, ammeter, le ohmmeter.

Mefuta ea multimeter

Lisebelisoa tsena tsa ho metha lia fapana ka boholo, likarolo le litheko 'me li etselitsoe ho jara kapa ho sebelisoa tafoleng ho latela ts'ebeliso ea tsona e reriloeng. Mefuta ea multimeter e kenyelletsa:

• Analog multimeter (ithute ho bala mona)
• Digital multimeter
• Fluke multimeter
• Tlosa multimeter
• Multimeter e ikemetseng

Multimeter ke e 'ngoe ea lisebelisoa tsa ho lekanya tse sebelisoang haholo kajeno. Leha ho le joalo, ba qalang hangata ba fumana ho le thata ho khetholla matšoao ho multimeter. Sehloohong sena, re tla u bontša mokhoa oa ho lemoha litlhaku ho multimeter.

Le hoja mefuta e fapaneng ea li-multimeter e fumaneha 'marakeng, kaofela ha tsona li sebelisa mokhoa o tšoanang oa matšoao. Matšoao a ka aroloa ka likarolo tse latelang:

• Aekhone ya ho Bulela/Ho tima
• letšoao la heke
• Letšoao la motlakase
• Letšoao la hona joale
• Letšoao la mohanyetsi

Moelelo oa matšoao ho multimeter

Matšoao a multimeter a kenyelletsa:

Letšoao	Ts'ebetso ea sistimi
TSHWARA konopo	E thusa ho rekota le ho boloka data e lekantsoeng.
Konopo ea ho tima/ho tima	E bule, e tima.
Boema-kepe ba COM	E emela Tloaelo mme e batla e hokahane kamehla fatše (Ground) kapa cathode ea potoloho. Boema-kepe ba COM hangata bo na le 'mala o motšo hape hangata bo hokahane le probe e ntšo.
boema-kepe 10A	Ena ke kou e khethehileng, hangata e etselitsoeng ho lekanya maqhubu a phahameng (> 200 mA).
mA, μA	Boema-kepe ba ho lekanya bo tlase.
mA ohm boema-kepe	Ena ke kou eo hangata probe e khubelu e hokahaneng ho eona. Boema-kepe bona bo ka lekanya hajoale (ho fihla ho 200mA), voltage (V), le ho hanyetsa (Ω).
boema-kepe oCVΩHz	Ena ke boema-kepe bo hokahaneng le moetapele oa tlhahlobo e khubelu. E u lumella ho lekanya mocheso (C), voltage (V), resistance (), frequency (Hz).
Boema-kepe ba 'nete ba RMS	Hangata e hokahane le terata e khubelu. Ho lekanya paramethara ea 'nete ea "square" (RMS) ea 'nete.
KHETHA konopo	E thusa ho fetola pakeng tsa mesebetsi.
khanya	Fetola khanya ea ponts'o.
Matla a motlakase	Alternate current. Lihlahisoa tse ling li bitsoa A.
Motlakase oa DC	D.C.
Hz	Lekanya maqhubu.
MOTLATSI	Tekanyo ea potoloho. Lekanya bokhoni ba hona joale. Hlahloba tsoelo-pele, potoloho e khutšoanyane (Tlhahlobo ea ho tsoela pele).
konopo ea pontšo	Teko ea Diode (Teko ea Diode)
HFE	Teko ea transistor-transistor
NCV	Mosebetsi oa hona joale oa induction o sa amaneng le batho
Konopo ea REL (e leloko)	Beha boleng ba litšupiso. E thusa ho bapisa le ho netefatsa boleng bo fapaneng bo lekantsoeng.
RANGE konopo	Khetha sebaka se loketseng sa tekanyo.
MAX / MIN	Boloka palo e phahameng le e fokolang ea litekanyetso tsa ho kenya; Tsebiso ea Beep ha boleng bo lekantsoeng bo feta boleng bo bolokiloeng. 'Me joale boleng bona bo bocha bo hlakotsoe.
Letšoao la Hz	E supa kgafetsa ya sedikadikwe kapa sesebediswa.

Ho sebelisa multimeter?

• E sebelisoa ho lekanya voltage, mohlala: metha DC hajoale, AC hajoale.
• Lekanya khanyetso ka motlakase o sa khaotseng, oa hona joale le ohmmeter e nyane.
• E sebedisetsoa ho metha nako le maqhubu kapele. (1)
• E khona ho fumana mathata a potoloho ea motlakase likoloing, ho hlahloba libeteri, li-alternator tsa koloi, joalo-joalo (2)

Sengoliloeng sena se fana ka litlhaloso tsohle tsa matšoao bakeng sa litšupiso ho lemoha matšoao ohle a bontšitsoeng ho multimeter. Haeba re fositse e le 'ngoe kapa re na le tlhahiso, ikutloe u lokolohile ho re romella lengolo-tsoibila.

likhothaletso

(1) tekanyo ea makhetlo - https://www.researchgate.net/publication/

269464380_Frequency_Measurement

(2) ho hlahloba mathata - https://www.sciencedirect.com/science/article/

pii/0305048393900067