Nsonsonoe bɛn na ɛwɔ mu sɔre tia ne impedance ntam?

Sɛnea ɛbɛyɛ a wobɛte nsɛm nketenkete a ɛwɔ mu resistance ne impedance ase no, ɛho hia sɛ wuhu sɛ impedance fa AC (alternating current), bere a emu resistance no ne DC (direct current) wɔ abusuabɔ kɛse. Ɛmfa ho sɛ wɔn nsɛm a ɛfa ho no, wɔn akontaabu di fomula koro no ara akyi, r=v/i, baabi a r yɛ mu resistance anaasɛ impedance, v yɛ voltage, na I yɛ current.

emu ahoɔden a ɛko tia: akwanside a ɛmma ɛlɛtrɔnik sen .

Nneɛma a ɛko tia nyarewa no fi ɛlɛtrɔnik a ɛne conductor no ionic lattice no bɔ mu, na ɛdan anyinam ahoɔden ma ɛdan ɔhyew. Susuw mu a ɛko tia nyarewa no ho sɛ akasakasa bi a esiw electron a ɛkɔ so no kwan. Wɔ tebea horow a alternating current sen fa resistive element mu no, ɛma voltage drop ba. Saa drop yi da so ara wɔ phase ne current no mu, a ɛkyerɛ abusuabɔ tẽẽ a ɛda current flow ne emu resistance a wohyia no ntam.

Impedance: Adwene a ɛtrɛw a ɛka ho a wɔko tia wɔ mu .

Impedance gyina hɔ ma asɛmfua a ɛkɔ akyiri a ɛka ɔsɔretia ahorow nyinaa a ɛfa ɛlɛtrɔnik nsu a ɛsen ho no bom. Eyi nka ho wɔ mu resistance nko, na mmom reactance nso. Ɛyɛ adwene a ɛwɔ baabiara a wohu wɔ amansin ne nneɛma a ɛwom nyinaa mu.

Ɛho hia sɛ wohu nsonsonoe a ɛda reactance ne impedance ntam. Reactance kyerɛ ɔsɔretia a wɔde ma AC current a inductors ne capacitors de ma, elements a ɛsono wɔ battery ahorow ahorow mu. Saa nsakrae yi da adi wɔ mfonini ahorow a ɛsono ne anyinam ahoɔden gyinapɛn ahorow a ɛyɛ batere biara su no mu.

Sɛnea ɛbɛyɛ a yɛbɛtew impedance ho no, yebetumi adan akɔ Randles model no so. Saa nhwɛsoɔ yi a wɔayɛ ho mfonini wɔ Mfonini 1 mu no, ɛde R1, R2, ka C. pɔtee ho, R1 gyina hɔ ma emu ahoɔden, berɛ a R2 ne charge transfer resistance no hyia. Bio nso, C kyerɛ capacitor a ɛwɔ ntoatoaso abien. Nea ɛda nsow ne sɛ, Randles nhwɛso no taa yi inductive reactance fi mu, efisɛ ne nkɛntɛnso wɔ battery adwumayɛ so, titiriw wɔ frequency a ɛba fam no, sua koraa.

Mfonini 1: Randles model a ɛyɛ lead acid battery .

Ntotoho a ɛfa emu ahoɔden ne impedance ho .

Nea ɛbɛyɛ na yɛama emu ada hɔ no, wɔakyerɛ mu a ɛkɔ akyiri a ɛfa emu sɔre tia ne impedance ho wɔ ase ha.

Afã a ɛwɔ anyinam ahoɔden agyapade mu .	Nneɛma a ɛwɔ mu a ɛko tia (R) .	Impedance (Z) .
Ɔmansin dwumadie .	Wɔde di dwuma titiriw wɔ circuits a ɛyɛ adwuma wɔ direct current (DC) so.	a wɔde di dwuma titiriw wɔ amansin a wɔayɛ ama alternating current (AC) mu no.
Ɔmansin a ɛwɔ hɔ .	Observable wɔ alternating current (AC) ne direct current (DC) circuits no nyinaa mu.	Exclusive to alternating current (AC) circuits, ɛnyɛ DC mu.
Abɔseɛ	Efi nneɛma a esiw anyinam ahoɔden a ɛsen no kwan no mu.	Ɛsɔre fi nneɛma a ɛka bom a ɛko tia anyinam ahoɔden no na ɛyɛ n’ade no mu.
Nkontaabu mu nkyerɛkyerɛmu .	Wɔde akontaahyɛde ankasa a ɛyɛ pintinn na ɛkyerɛe, sɛ nhwɛso no, 5.3 ohms.	a wɔda no adi denam akontaahyɛde ankasa ne nsusuwii mu nneɛma nyinaa so, a wɔde ‘R + IK’ ayɛ ho nhwɛso.
Mpɛn dodow a wɔde wɔn ho to so .	Ne bo kɔ so yɛ nea ɛkɔ so daa a DC current no mpɛn dodow a ɛwɔ hɔ no mfa ho.	Ne bo a ɛsom no sakra bere a AC current no frequency sesa no.
Phase su .	ɛnkyerɛ phase angle anaa magnitude su biara.	nea ɛda adi wɔ phase angle ne kɛseyɛ a ɛyɛ pintinn nyinaa ho.
Suban a ɛwɔ anyinam ahoɔden mu .	nkutoo na ɛda tumi a wɔsɛe no adi bere a wɔde wɔn ho hyɛ anyinam ahoɔden a wɔde di dwuma mu no.	kyerɛ tumi a wɔsɛe no ne tumi a wɔde sie ahoɔden wɔ anyinam ahoɔden mu nyinaa.

Pɛpɛɛpɛ wɔ batere no mu resistance susuw .

Sɛ́ ano aduru a wɔde ma a ne ho akokwaw wɔ batere a wɔde siesie nneɛma so a wɔhwɛ so na wɔhwɛ so no, . DFUN a wosi so dua wɔ batere mu ahoɔden a wɔde gyina ano no ne nnwuma mu nneyɛe a wɔde asi hɔ no hyia, na ɛma wonya nhyɛso fi mfiri a wogye tom kɛse te sɛ Fluke anaa Hioki mu. Akwan a wɔfa so de saa mfiri yi di dwuma, a wonim no sɛ ɛyɛ pɛpɛɛpɛ na wɔgye adetɔfoɔ tom kɛseɛ no, yɛdi gyinapɛn te sɛ IEE1491-2012 ne IEE1188 so.

IEE1491-2012 kyerɛ yɛn kwan wɔ yɛn mu resistance a yɛbɛte aseɛ sɛ dynamic parameter, a ɛhia sɛ yɛkɔ so di akyi na yɛatumi asusu deviations afiri mfitiaseɛ no. Saa bere yi nyinaa, IEE1188 gyinapɛn no de ahwehwɛde bi si hɔ ma adeyɛ, na ɛtu fo sɛ sɛ emu ahoɔden no boro 20% wɔ gyinapɛn kwan no so a, ɛsɛ sɛ wosusuw batere no ho ma wɔde si ananmu anaasɛ wɔde hyɛ kyinhyia a emu dɔ mu na wɔsan de ahoɔden gu mu.

Sɛ yɛfiri saa nnyinasosɛm yi mu a, yɛn kwan a yɛfa so susu emu ahoɔden no hwehwɛ sɛ yɛde batere no hyɛ frequency a ɛyɛ pintinn ne current ase, na ɛno akyi no, voltage sampling. Nneɛma a wɔyɛ no akyiri yi, a nea ɛka ho ne sɛnea wɔsiesie ne sɛnea wɔde afiri a ɛma nneɛma yɛ kɛse a ɛyɛ adwuma no yɛ adwuma no ma wonya emu ahoɔden a wɔde gyina ano no ho susuw a ɛyɛ pɛpɛɛpɛ. Nea ɛyɛ nwonwa no, saa kwan yi taa ba awiei wɔ milisekɔn 100 mu, na ɛhoahoa ne ho sɛ ɛyɛ pɛpɛɛpɛ a ɛfata nkamfo a ɛyɛ 1% kosi 2%.

Sɛ yɛde rewie a, pɛpɛɛpɛyɛ a ɛwɔ emu ahoɔden a wɔko tia mu no hwɛ ma wɔhwɛ batere so yiye, na ɛboa ma wɔtra ase kyɛ. Saa akwankyerɛ yi botae ne sɛ ɛbɛboa wɔn a ebia wobehu sɛ ɛyɛ den sɛ wobehu nsonsonoe a ɛda emu sɔretia ne ahoɔden a wɔde siw ano ntam, na ama ntease a ɛyɛ nuanced wɔ saa anyinam ahoɔden su ahorow yi ho no ayɛ mmerɛw. Sɛ wopɛ nsɛm ne ntease a ɛkɔ akyiri a, wubetumi ahwehwɛ nneɛma foforo a ɛwɔ hɔ no mu afi . Dfun Tech ..