DESIGN OF MECHATRONICS SYSTEMS- MICRO MECHATRONIC SYSTEM(Unit- V) - Hand written notes

The hand written notes covers the following topics, 

Introduction- System principle - Component design – System design – Scaling laws –
Micro actuation – Micro robot – Micro pump – Mechatronic Control in Automated
Manufacturing – Artificial intelligence, Fuzzy Logic Applications.













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DESIGN OF MECHATRONICS SYSTEMS- CASE STUDIES ON MECHATRONIC SYSTEM(Unit- IV) - Hand written notes

The hand written notes covers the following topics, 

Thermal cycle fatigue of a ceramic plate - pH control system - De-Icing Temperature Control System - Skip control of a CD player - Autofocus Camera, exposure control









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DESIGN OF MECHATRONICS SYSTEMS- CASE STUDIES ON MECHATRONIC SYSTEM(Unit- IV)

The presentation and the video of the presentation is attached along with this post

Thermal cycle fatigue of a ceramic plate - pH control system - De-Icing Temperature Control System - Skip control of a CD player - Autofocus Camera, exposure control

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Design of Mechatronics System

Unit - 1 Notes :

UNIT I                      FUNDAMENTALS                                                              

Key elements – Mechatronics Design process –Design Parameters – Traditional and Mechatronics designs – Advanced approaches in Mechatronics - Industrial design and ergonomics, safety

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Extra unit-1 materials - Click Here

THERMODYNAMICS PRINCIPLES AND APPLICATIONS

Assignment Question 

ME3306                THERMODYNAMICS PRINCIPLES AND APPLICATIONS


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EC3303 SENSORS AND SIGNAL PROCESSING - Anna University Previous Year Question Papers

EC3303 SENSORS AND SIGNAL PROCESSING - Anna University Previous Year Question Papers

The question paper syllabus covers the following topics :

UNIT I SCIENCE OF MEASUREMENT
UNIT II MECHANICAL MEASUREMENTS
UNIT III ELECTRICAL MEASUREMENTS
UNIT IV SMART SENSORS
UNIT V SIGNAL CONDITIONING AND DATA ACQUISITION


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EC3303 - Sensors & Signal Processing -SSP Unit-5 -SIGNAL CONDITIONING AND DATA ACQUISITION- Hand Written Notes

Hand written notes for unit-5 (SIGNAL CONDITIONING AND DATA ACQUISITION) covers the following topics in detail.

1. Amplification 
2. Filtering
3. Sample and Hold circuits 
4. Data Acquisition: 
5. Single channel and multichannel data acquisition
6. Data logging.

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Computer Numerical Control (CNC) Study Materials for Mechatronics

Computer Numerical Control (CNC) is a specialized and versatile form of Soft
Automation and its applications cover many kinds, although it was initially
developed to control the motion and operation of machine tools.
Computer Numerical Control may be considered to be a means of operating a
machine through the use of discrete numerical values fed into the machine, where
the required 'input' technical information is stored on a kind of input media such
as floppy disk, hard disk, CD ROM, DVD, USB flash drive, or RAM card etc. The
machine follows a predetermined sequence of machining operations at the
predetermined speeds necessary to produce a workpiece of the right shape and
size and thus according to completely predictable results. A different product can
be produced through reprogramming and a low-quantity production run of
different products is justified.
1.1 Control Systems
1.1.1 Open Loop Systems
Open loop systems have no access to the real time data about the performance of
the system and therefore no immediate corrective action can be taken in case of
system disturbance. This system is normally applied only to the case where the
output is almost constant and predictable. Therefore, an open loop system is
unlikely to be used to control machine tools since the cutting force and loading of
a machine tool is never a constant. The only exception is the wirecut machine for
which some machine tool builders still prefer to use an open loop system because
there is virtually no cutting force in wirecut machining.

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CONTROL FOR CNC.pdf - Click Here

CNC PROGRAM.pdf - Click Here

SSP Unit-5 Presentations

This page gives the presentation for unit-5
UNIT - 5 covers the following topics :
 SIGNAL CONDITIONING AND DATA ACQUISITION          
Amplification – Filtering – Sample and Hold circuits –Data Acquisition: Single channel and multi
channel data acquisition – Data logging.

Presentation for Signal Conditioning & Amplification  - Click Here
Presentation for Filters - Click Here
Presentation for Sample & Hold- Click Here
Presentation for Data Acquisition, Single Channel & Multi Channel - Click Here
Presentation for Data Logging - Click Here

CNC Study materials

                                             CNC MACHINING CENTERS
                     INTRODUCTION TO COMPUTER NUMERICAL CONTROL
The variety being demanded in view of the varying tastes of the consumer calls for a
very small batch sizes. Small batch sizes will not be able to take advantage of the mass
production techniques such as special purpose machines or transfer lines. Hence, the need for
flexible automation is felt , where you not only get the benefits of rigid automation but are
also able to vary the products manufactured thus bringing in the flexibility. Numerical control
fits the bill perfectly and we would see that manufacturing would increasingly be dependent
on numerical control in future.
Numerical control
Numerical control of machine tools may be defined as a method of automation in
which various functions of machine tools are controlled by letters, numbers and symbols.
Basically a NC machine runs on a program fed to it. The program consists of precise
instructions about the methodology of manufacture as well as movements. For example, what
tool is to be used, at what speed, at what feed and to move from which point to which point in
what path. Since the program is the controlling point for product manufacture, the machine
becomes versatile and can be used for any part. All the functions of a NC machine tool are
therefore controlled electronically, hydraulically or pneumatically. In NC machine tools, one
or more of the following functions may be automatic.
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SSP IA-2 Important Questions

2- Mark Questions :

1.Define electrical transducer

2. What is meant by Resistive Transducer.

3. Define Potentiometer. State its types.

4. Draw the Equivalent Diagram of Potentiometer.

5. State the Applications of Potentiometer.

6. Give few advantages and disadvantages of Potentiometer.

7. How Resistance Temperature Detectors (RTDs) works.

8. State the Advantage and Disadvantage of RTD

9. Give some application of RTD.

10. How Thermistor works.

11. What is meant by PTC and NTC in thermistor.

12. Define Seebeck Effect

13. Define Peltier Effects.

14. Define Thomson effects.

15. How Thermocouple works

16. State the working principle of Thermocouple.

17. Give the general block diagram of Thermocouple working.

18. States the laws of thermocouple.

19. Explain the Law of homogeneous materials

20. Explain the Law of intermediate materials

21. Explain the Law of  intermediate temperatures

22. What are the commercially available Thermocouples?

23. State few Applications of Thermocouples.

24. Define Thermopile.

25. Define Strain.

26. What is Strain gauge?

27. How Strain gauge works.

28. Define Gauge Factor.

29. Define Poison’s ratio.

30. State the types of Strain gauges.

31. Define Inductive Transducer.

32. State LVDT Working Principle.

33. Define Capacitive Transducer.

34. How to vary capacitance in Capacitive Transducer

35. State some advantage and Disadvantages of  capacitive Transducers.

36. What are Piezo – Electric Crystals? Give Examples.

37. What is meant by piezo-electric effect?

38. What is meant by inverse piezo-electric effect ?

39. What are the merits or advantages of piezo-electric oscillator?

40. What are the demerits of piezo-electric oscillator?

41.Define a transducer.

42.How transducers are classified?

43. Name the types of Resistance transducers.

44. Name the capacitance transducers.

45. Name the types of inductance transducers.

46. Mention the various resistance materials used in resistance transducers.

47. Mention the static characteristics of the transducers.

48. Name the application of piezo-electrical transducers in the medical field

49. State the basic principle of photoelectric transducers.

50. What is a Digital Transducer?

51. What is an encoder ?                                                                                                           

52. State the Classification of Encoder types.

53. Compare RTD with thermistor.

 16 Mark Questions:

1. Explain hot wire anemometer. What are its types? Explain it with neat diagram.

2. Explain the construction and working of Linear Variable Differential Transformer (LVDT)?

5. Explain the construction and working of RTD?

6. Explain the construction and working of Thermistor?

7. Explain the construction and working of Thermocouple? State its laws.

8. Explain the construction and working of Strain gauge? State and explain its types.

9. Derive the equation for Poison’s ratio and strain gauge factor of Strain gauge.

10. Explain the construction and working of Rotational Variable Differential Transformer (RVDT)?

11. What is meant by capacitive transducer? Explain its construction and method of change of capacitance value in detail.

12. Explain the construction and working Piezo Electric Transducer?

13. Write in detail about the Digital displacement transducer. What are its types and also explain its types in detail.

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SSP - Unit-3 Handwritten notes

ELECTRICAL MEASUREMENTS
Resistive transducers – Potentiometer– RTD – Thermistor – Thermocouple – Strain gauges –
use in displacement, temperature, force measurement – Inductive transducer – LVDT – RVDT –
use in displacement – Capacitive transducer – Piezo electric transducer – Digital displacement
transducers.


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ANNA UNIVERSITY TIME TABLE - B.E/B.Tech (R-2008)/ B.Arch.(R-2009) DEGREE EXAMINATIONS - Nov-Dec 2013

ANNA UNIVERSITY , CHENNAI - 600 025
TIME TABLE - B.E/B.Tech (R-2008)/ B.Arch.(R-2009) DEGREE EXAMINATIONS - Nov-Dec 2013
For candidates admitted in Anna University, Chennai in 2008, 2009 & 2012,
erstwhile Anna University of Technology, Chennai in 2010 and
all erstwhile Anna Universities of Technology in 2011
FN: FORENOON
AN:AFTERNOON CONTROLLER OF EXAMINATIONS
19-09-13

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Digital Electronics Important Question for IA-2

2 mark :

1.       Define Encoder and decoder with block diagram.

2.       What is priority encoder?

3.       Can a decoder function as a Demultiplexer?

4.       Define Multiplexer and Demultiplexer.

5.       Give other name for Multiplexer and Demultiplexer

6.       Difference between Combinational & Sequential Circuits.

7.       List out the applications of Mux and Demux?

8.       List out the applications of Encoder and Decoder?

9.       What are the applications of seven segment displays?

10.   What is sequential circuit?

11.   List the classifications of sequential circuit.

12.   what is Synchronous sequential circuit?

13.   What is clocked sequential circuits?

14.   What is called latch?

15.   List different types of flip-flops.

16.   What do you mean by triggering of flip-flop.

17.   List different types of triggering in flip-flops.

18.   What is an excitation table?

19.   Give the excitation table of a JK flip-flop

20.   Give the excitation table of a RS flip-flop

21.   Give the excitation table of a D flip-flop

22.   Give the excitation table of a T flip-flop

23.   Give the characteristic equation of a SR, JK, D, T flip-flops.

What is the difference between truth table.


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SSP - Unit-3 - 2 Mark Questions with Answers.

Unit-3

Electrical Measurements

2- Mark Questions and Answers

1.     Define electrical transducer

Transducer is a device which converts the energy from one form to another form. Transducer that gives electrical energy as output is known as electrical transducer. The Output electrical signal may be voltage or current.

2. What is meant by Resistive Transducer.

Measurement of change in resistance . Relationship is given by

                         

3. Define Potentiometer. State its types.

A pot is an electromechanical device containing an electrically conductive wiper that slides against a fixed resistive element according to the position or angle of an external shaft.

Its 3 types are Linear POT,   Rotary POT,    Helipots

4. Draw the Equivalent Diagram of Potentiometer.

5. State the Applications of Potentiometer.

To measure displacement (linear, angular)

– To measure level

– To measure force (as in strain gauges)

– To measure pressure

– To detect error in a control system (a comparator, or a comparison circuit).

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Modeling and Simulation - Unit-3 Notes

POISSON PROCESS
 In probability theory, a Poisson process is a stochastic process which counts the number of events and the time that these events occur in a given time interval. The time between each pair of consecutive events has an exponential distribution with parameter λ and each of these inter-arrival times is assumed to be independent of other inter-arrival times.

The basic form of Poisson process, often referred to simply as "the Poisson process", is a continuous-time counting process {N(t), t ≥ 0} that possesses the following properties:

• N(0) = 0
• Independent increments (the numbers of occurrences counted in disjoint intervals are independent from each other)
• Stationary increments (the probability distribution of the number of occurrences counted in any time interval only depends on the length of the interval)
• No counted occurrences are simultaneous.

Consequences of this definition include:

• The probability distribution of N(t) is a Poisson distribution.
• The probability distribution of the waiting time until the next occurrence is an exponential distribution.
• The occurrences are distributed uniformly on any interval of time. (Note that N(t), the total number of occurrences, has a Poisson distribution over (0, t], whereas the location of an individual occurrence on t ∈ (a, b] is uniform.)
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Unit-3 - Electrical Measurement - Class notes- Presentation

The topics which are covered in this presentation are 
Resistive transducers – Potentiometer– RTD – Thermistor – Thermocouple – Strain gauges –
use in displacement, temperature, force measurement.

Temperature Presentation - Click Here
Strain Gauge Presentation - Click Here

DESIGN OF MACHINE ELEMENTS QUESTION BANK

                                                                               UNIT-1

STEADY STRESSES AND VARIABLE STRESSES IN MACHINE MEMBERS PART-A 
 (2 Marks)

1. Define ‘ Design’ and explain the design process

2. What is ‘innovative design”?

3. Explain a method of reducing cost of the final product from the design perspective.

4. What is ‘optimization’? What are the methods for optimization?

5. Define factor of safety. What factor dictate the selection of factor of safety?

6. Differentiate between hardness and toughness of materials.

7. Explain ‘ creep’, resilience’.

8. List the various types of loads and explain.

9. Distinguish between different  types of variable stresses.

10. Explain endurance limit. What factors influence endurance strength?

11. Explain the effect of product reliability on endurance strength.

12. State the significance of S-N curve.

13. Define stress intensity factor, notch sensitivity and fatigue stress concentration factor.

14. Explain Goodman and Seidenberg diagrams

15. Differentiate between the use of Goodman diagram and Seidenberg diagram for designing.

16. Comment on the statement “ In curved beams maximum stress always occurs at the inner  fibre “.

17. What is stress concentration? What are the methods to determine it? What are

the methods to reduce it?

18. Explain how the maximum shear stress theory is used for biaxial and trysail stress cases.

PART-B (16 Marks)

1.     A  bar of circular cross section is subject to alternating tensile forces varying from 200kN to 500kN. Material’s ultimate tensile strength is 900Mpa, endurance limit is 700Mpa. Determine the diameter of the bar using safety factors of 3.5 related to ultimate strength and 4 related to ultimate strength and

4 related to endurance limit. Stress concentration factor us 1.65 use Goodman criteria. (16)

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