The electrical time-constant of an armature- controlled dc servomotor is
A mass spring system under equilibrium condition is shown in figure below.
The output displacement x(t) for M = 10 kg is given by
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Two wheels are mechanically coupled as shown in figure below.
Here, ω1 and ω2 = angular velocities (in rad/s)
T1 and T2 = Torque (in N-m)
r1 and r2 = radius of the wheels (in cm)
θ1 and θ2 = angular displacements (in degrees)
N1, and N2 = No. of teeths on wheels
It is given that ω1 = 10 rad/s, N1 = 40, N2 - 20,
T1 = 5 N-m, r1 = 20 cm and θ1 = 20°.
Match List-I with List-ll and select the correct answer using the codes given below the lists:
The poles-and zeros of the transfer function for the mechanical system shown below are respectively
Consider the mechanical system shown in figure below.
Which one of the following circuits shows the force-voltage analogous electrical circuit for the mechanical diagram shown above?
Match List-I with List-II and select the correct answer using the codes given below the lists:
Consider the mechanical system shown below:
The system is described by the differential equations:
Which of the following is not a desirable property of a servomotor in feedback control systems?
Consider the following statements related to A.C. servomotors compared to D.C. servomotor used in control system applications.
1. It has less efficiency.
2. It is maintenance free.
3. It gives smooth operation.
4. It gives high power output.
Which of these statements is/are true regarding an A.C. servomotor?