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l(f)ڣ[2008-10-30]    [4086]ΡЇ(gu)늚Ј(chng)ُ(gu)W(wng)[EM39.com]{(bio)pԄ(dng)L}
      ڹ늵ľ·늉ССĎװf(wn)ڶ΃xy(c)ҪD(zhun)Q^y(tng)һ⾀·ϵ늉^ֱӜy(c)ǷdzΣU(xin)ġ׃늚x

^ǰ@ʾx󲿷ָʽ늉Ķ(sh)ǰ༉(j)ģ5AȣF(xin)ڵy(c)(sh)ֻӋ(j)C(j)IJɘӵ̖(ho)һ(j)0-5V4-20mAȣ΢(j)Ҫ󻥸cɘ֮gĘ

΢Ҳ˷Q(chng)֮顰xxһӺxڌ(sh)(yn)ʹõĶȾһڔU(ku)x


´ڞg[DƬ

ԭ·D

΢c׃(li)ҲǸ(j)늴ŸБ(yng)ԭ,׃׃Q늉΢׃QTD@MN1ӱy(c)Q(chng)һ@Mԭ߅@M(j)@M@MN2Ӝy(c)?j)xQ(chng)@M߅@Mμ(j)@M

΢һ@MI1c@MI2Ќ(sh)HK΢~¹r(sh)Ƚ~Knʾ

Kn=I1n/I2n

΢¿ɷ֞(li)y(c)ͱo(h)

y(c)

y(c)Ҫcy(c)?j)xϣھ·B(ti)Á(li)y(c)늉ʵy(c)΢ҪҪ1^ɿ2ߵĜy(c)3(dng)y(c)·l(f)ϳF(xin)Ĵr(sh)(yng)m(dng)?sh)̃?ni)ͣ500%~Աo(h)y(c)?j)x

o(h)

o(h)Ҫc^bھ·l(f)·^(gu)dȹϕr(sh)^bṩ̖(ho)Д·Աo(h)ϵy(tng)İȫo(h)΢Ĺlcy(c)ûȫͬo(h)ûֻڱױʮr(sh)_(ki)ʼЧĹo(h)ûҪҪ1^ɿ2Ĝ(zhn)_ֵϵ(sh)3ğ᷀(wn)Ժ̈́(dng)(wn)

o(h)û~ؓ(f)܉M(zhn)_(j)Ҫһ~(zhn)_ֵһ(zhn)_ֵϵ(sh)~(zhn)_ֵһc~һ(dng)һr(sh)Fо͕(hu)𲻵ӳһ(zhn)_ֵϵ(sh)DZʾ@No(h)û(zhn)_ȼ(j)5P10Pʾ~(zhn)_ֵһr(sh)S`5%10%

·l(f)ϕr(sh)ě_a(chn)늴o(h)횳@M·r£һ(ni)ܳܶo(w)pһЧֵQ(chng)~̕r(sh)@M·rܳܶo(w)pһֵQ(chng)~(dng)(wn)

o(h)֞飺1^(gu)ؓ(f)ɱo(h)2(dng)o(h)3ӵرo(h)

΢늉

΢늉,ڳߴ繤ˇԭͨ͵늉(sh)HϾ~Ȟ1һζǺ(j)磺2mA/2mAԺo(w)؄eָָ

´ڞg[DƬ

r(sh)һ@McR“(lin)ӱy(c)늉ݔ\(yn)M(jn)I/V׃Qֱɘӣ˕r(sh)һI1=U/R+rI2=I1/Knrһ@M(ni)裬Kn~

(li)ԴMɽ΢ͻо

dֻfϢվ^c(din)C(sh)ϢHD(zhun)dՈ(qng)ע̎




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