Measurement and Control Lab

Lab Incharge:

Lab Technician: Saroj Kumar Sah

1. Instrumentation I Lab

This lab is based on the subject “Instrumentation I” which is taught to second-year students from different departments. There is a total of 6 lab assignments. The lab is about the use of different amplifier circuits, transducers, sensing and measuring devices, digital/analog converters, etc.

  1. Accuracy test in analog meters
  2. Operational Amplifiers in Circuits
  • Use of Op-amp as a summer, inverter, integrator, and differentiator
  1. Use resistive, inductive, and capacitive transducers to measure displacement
  • Use strain gauge transducers to measure force
  1. Study of Various transducers for measurement of Angular displacement, Angular Velocity, Pressure and Flow
  • Use optical, Hall effect and inductive transducer to measure angular displacement
  • Use tacho – generator to measure angular velocity
  • Use RTD transducers to measure pressure and flow
  1. Digital to Analog Conversion
  • Perform static testing of D/A converter
  1. Analog to Digital Conversion
  • Perform static testing of A/D converter

2. Control Lab

This lab is based on the subject “Control System” which is done by third-year students from different departments. There is a total of 5 labs. Following labs are carried out:

  1. To study open loop and closed mode for d.c motor and familiarization with different components in D.C motor control module.
  2. To determine the gain and transfer function of different control system components.
  3. To study effects of feedback on gain and time constant for closed-loop speed control system and position control system.
  4. To determine the frequency response of the first-order and second-order systems and to get the transfer function.

Simulation of closed-loop speed control system and position control system and verification

2. Digital Control System Lab

This lab is based on the subject “Digital Control System” which is taught to third-year students from different departments. The lab is entirely Computer-based and MATLAB is used. There are total of 5 lab assignments. Following labs are carried out:

  1. Study of relay type “ON-OFF” control system
  • To familiarize the student about the feedback control system with an ON/OFF control
  1. Z – transform using MATLAB
  • To learn the application of MATLAB to convert the s-domain transfer function into z-domain
  • To study the effects in transient response and frequency response of different methods and sampling time used in the z- Transfer function.
  1. Stability analysis of the closed-loop system in z-plane
  • To learn the application of MATLAB to test the stability of a system in z-domain
  1. A simulation study using Simulink of MATLAB
  • To Familiarize with MATLAB Simulation
  • To study simulation of discrete-time control system
  1. Position control system through analog interfacing
  • To learn the use of analog interfacing techniques to control the position of the motor in the DC Motor module