1

The following specification applies to a position control: $K_{v}=10 .$ On hand is an amplifier with a variable gain, $K_{2}$, with which to drive a motor. Two one-...

Question

The following specification applies to a position control: $K_{v}=10 .$ On hand is an amplifier with a variable gain, $K_{2}$, with which to drive a motor. Two one-turn pots to convert shaft position into voltage are also available, where $\pm 3 \pi$ volts are placed across the pots. A motor is available whose transfer function is $$\frac{\theta_{m}(s)}{E_{a}(s)}=\frac{K}{s(s+\alpha)}$$ where $\theta_{m}(s)$ is the motor armature position and $E_{c}(s)$ is the armature voltage. The components ar

The following specification applies to a position control: $K_{v}=10 .$ On hand is an amplifier with a variable gain, $K_{2}$, with which to drive a motor. Two one-turn pots to convert shaft position into voltage are also available, where $\pm 3 \pi$ volts are placed across the pots. A motor is available whose transfer function is $$\frac{\theta_{m}(s)}{E_{a}(s)}=\frac{K}{s(s+\alpha)}$$ where $\theta_{m}(s)$ is the motor armature position and $E_{c}(s)$ is the armature voltage. The components are interconnected as shown in Figure P7.24. The transfer function of the motor is found experimentally as follows. The motor and load are driven separately by applying a large, short square wave (a unit impulse) to the armature. An oscillograph of the response shows that the motor reached $63 \%$ of its final output value 0.5 second after application of the impulse, Furthermore, with 10 volts dc applied to the armature. the constant output speed was 100 rad/s. Draw the completed block diagram of the system, specifying the transfer function of each component of the block diagram.



Answers

In a shunt-wound dc motor with the field coils and rotor connected in parallel ($\textbf{Fig. E27.47}$), the resistance $R_f$ of the field coils is 106 $\Omega$, and the resistance $R_r$ of the rotor is 5.9 $\Omega$. When a potential difference of 120 V is applied to the brushes and the motor is running at full speed delivering mechanical power, the current supplied to it is 4.82 A. (a) What is the current in the field coils? (b) What is the current in the rotor? (c) What is the induced emf developed by the motor? (d) How much mechanical power is developed by this motor?


Similar Solved Questions

5 answers
In pea plants the S allele produces round peas and the allele produces wrinkled peas when in the homozygous state. The C allele produces yellow peas and the allele produces green peas when in the homozygous state test cross is set up between two pea plants: SsCc x sscc which resulted in the progeny below:What is the genotype of the group with 95 individuals?957269101yellowsSCcSsCc.SSccSSCCSscc.YeiOwi
In pea plants the S allele produces round peas and the allele produces wrinkled peas when in the homozygous state. The C allele produces yellow peas and the allele produces green peas when in the homozygous state test cross is set up between two pea plants: SsCc x sscc which resulted in the progeny ...
4 answers
J4"*4(32Ieel; 3ri4i; >alhu # e 6vs ditte Fino]dt20 348 fich s, #-0 272II -intgin -= anewiagntf
J4"*4(32 Ieel; 3ri4i; >alhu # e 6vs ditte Fino]dt 20 348 fich s, #-0 272 II -intgin -= anewiagntf...
5 answers
10.~/6.66 POINTSLARCALC1I QP.3.010.MI:f(a Find f(a), f(a h), and the difference quotientf(a) where h # 0.f(x)f(a)f(a + h)f(a h) - f(a)Read more about Topic 3: Function NotationSubmit Answer
10. ~/6.66 POINTS LARCALC1I QP.3.010.MI: f(a Find f(a), f(a h), and the difference quotient f(a) where h # 0. f(x) f(a) f(a + h) f(a h) - f(a) Read more about Topic 3: Function Notation Submit Answer...
5 answers
Lat {(c) V3z F 2, then the inverse function $ Sclect one.1 '(2)1 '() 1 '(#)1~'()
Lat {(c) V3z F 2, then the inverse function $ Sclect one. 1 '(2) 1 '() 1 '(#) 1~'()...
5 answers
Use the delinition to establish each of the following limits. limg (2x 7) = lim (3r + 5) lim 2 - 3r - 4 2 |
Use the delinition to establish each of the following limits. limg (2x 7) = lim (3r + 5) lim 2 - 3r - 4 2 |...
1 answers
Solve the separable equation (r + ry?_ dx + er-ydy = 0, 9(0) = 0.
Solve the separable equation (r + ry?_ dx + er-ydy = 0, 9(0) = 0....
5 answers
Conslder the balanced chemical reaction shown belon:NaN_(s)0z(9) NazO(s) Nz(g} In & certain expenment; 5.38 ot NJNi(s) reacts wlth 6,90 g 0f 0,(9). How many grams 0f N,(9) form? (assume [00% Yleld)2) [3,9 9rcms 0 N,(o) form D) 6,96 @reutye N_(e) formnac) ] 40 9rams Nx(o) form 4) 47,4 prems Na(a) forme) 1.74 grzms 0f Nz(9) form .
Conslder the balanced chemical reaction shown belon: NaN_(s) 0z(9) NazO(s) Nz(g} In & certain expenment; 5.38 ot NJNi(s) reacts wlth 6,90 g 0f 0,(9). How many grams 0f N,(9) form? (assume [00% Yleld) 2) [3,9 9rcms 0 N,(o) form D) 6,96 @reutye N_(e) formna c) ] 40 9rams Nx(o) form 4) 47,4 prems N...
5 answers
If f(x)Ven + 84" lind f' (*)Fnlrt malical < Iick hete, ruler Lhe Eleau 4nd (btn click 2#4I0 .
If f(x) Ven + 84" lind f' (*) Fnlrt malical < Iick hete, ruler Lhe Eleau 4nd (btn click 2#4I0 ....
5 answers
Find the average value of the function over the given rectangle.f(x, Y) =R={(x, y) |0sxs4, 2sys6}The average value is (Round to two decimal places as needed )
Find the average value of the function over the given rectangle. f(x, Y) = R={(x, y) |0sxs4, 2sys6} The average value is (Round to two decimal places as needed )...
5 answers
~p; (2& ) ,YU) ~Po; (s+) , Q5 Let X() uhu X/4) { Y(4) NC) = x() +Yt) Po;sSon Prolesses cve 2 mdepencbt Ined x(i)= 3 4 Yb)-5 0) Fncl H Pre bab:| ih N () = 3_ Anzl 4 Pvebsbly b ) Cwn tnd Anct X()= 2 7 mavks
~p; (2& ) ,YU) ~Po; (s+) , Q5 Let X() uhu X/4) { Y(4) NC) = x() +Yt) Po;sSon Prolesses cve 2 mdepencbt Ined x(i)= 3 4 Yb)-5 0) Fncl H Pre bab:| ih N () = 3_ Anzl 4 Pvebsbly b ) Cwn tnd Anct X()= 2 7 mavks...
1 answers
$$\text {Evaluate the iterated integrals}$$ $$\int_{0}^{2} \int_{1}^{z} \int_{0}^{\sqrt{x / 2}} 2 x y z d y d x d z$$
$$\text {Evaluate the iterated integrals}$$ $$\int_{0}^{2} \int_{1}^{z} \int_{0}^{\sqrt{x / 2}} 2 x y z d y d x d z$$...
5 answers
For the following set of scores 6,2,3,0,4 If the scoresare a sample, what are the variance and standard deviation?
for the following set of scores 6,2,3,0,4 If the scores are a sample, what are the variance and standard deviation?...
5 answers
A/ Based on the Lewis structureof PO43- that hasthe lowest formal charges, how many double bonds are there in themolecule?b/ Based on the Lewis structureof XeF2 molecule, howmany nonbonding electron pairs are onthe Xe atom
a/ Based on the Lewis structure of PO43- that has the lowest formal charges, how many double bonds are there in the molecule? b/ Based on the Lewis structure of XeF2 molecule, how many nonbonding electron pairs are on the Xe atom...
5 answers
Evaluate the surface integralIIs for the given vector field and the oriented surface In other words_ find the flux of across For closed surfaces use the positive (outward) orientation; F(x, Y, 2) = ~xi yj + 2k, 5 is the part of the cone x + between the planes and 2 = with downward orientation
Evaluate the surface integral IIs for the given vector field and the oriented surface In other words_ find the flux of across For closed surfaces use the positive (outward) orientation; F(x, Y, 2) = ~xi yj + 2k, 5 is the part of the cone x + between the planes and 2 = with downward orientation...
5 answers
Use the Integral Test to determine whether the series is convergent or divergent;n2 + 5Evaluate the following integral:x2 + 5Since the integral Select-_ Need Help? Read Itfinite_ the series isSelect-_Watch ItTalk to Tutor
Use the Integral Test to determine whether the series is convergent or divergent; n2 + 5 Evaluate the following integral: x2 + 5 Since the integral Select-_ Need Help? Read It finite_ the series is Select-_ Watch It Talk to Tutor...

-- 0.020133--