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IRWIN 9e 4_52

# IRWIN 9e 4_52 - Irwin Basic Engineering Circuit Analysis...

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Unformatted text preview: Irwin, Basic Engineering Circuit Analysis, 9/E . 1 4.52 Wood pttlp is used to make paper in a paper mill. The amount of lignin present in pulp is 24V called the kappa number. A very sophisticat— ed instrument is ttsed to measure kappa. and the output of this instrument ranges i'rorn ] to 5 volts. where 1 volt represents a kappa number of [2 and 5 volts represents a kappa nuntlrer ol' 2%]. The pulp mill operator has asked to have a kappa nteter installed on his console. Design aeircuit that will employ as input the l- to ﬁ-volt signal and output the kappa number. An electronics engineer in the plant has suggested the circuit shown in Fig. P452. Figure P452 SOLUTION: e km. 01 V, ' 194/! =¥r..+\/r*VK Chapter 4: Operational Amplifiers Problem 4.52 2 . lMin, Basic Engineering Circuit Analysis, 9/E KCL wt VK v,—\/K = Vsz ’23 RH 1‘7 R1: 23 R5: R ; Grid) R,:,K—Q— Ebrnihaﬁngf V, J‘n :Hu; KCL EWah'W‘. v,—VK : (2H’VUR : Riv! + RI(V|'VK) Problem 4.52 Chapter 4: Operational Amplifiers lnNin, Basic Engineering Circuit Analysis, 9/E 3 RiVK : 2Q1V1“2HR +V/R Q,\/,<: (la-+2) (wk-vn-zqe QM = wavy 22 vK-sz-lfQﬂ/l ~2we (—32,—2R)VK : (-R" 29:)V2 “ZWR VK: (‘R—ZRI>V1 — ﬂi— “Bgl—lR _3K)—2R w: (51334)qu + M ' lQ‘l 3R; 1R+3Q| Vk : WVS at V5: IV) \IK: 12v qr VS:5V J VKz—zov ’rn : 2.0”?— S'I Chapter 4: Operational Amplifiers Problem 4.52 4 Irwin, Basic Engineering Circuit Analysis, _9/E IO TZVs= (JkLZEL) 9Vs4‘1”R 2Q+3Q. ZQ‘fBR, 97: ;:q 1k 26:: IKI). Q7='29q kIL R.=H<_Q.) {27:2'qq KJL )Qnd, Q6:H<ﬂ Sahd: R1=K3=RV=Q5=‘15KJ1 Problem 4.52 Chapter 4: Operational Amplifiers ...
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