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UNIT-I BASIC CONCEPTS

Part A Questions ( 2 MARKS)

1. Define a Robot?

2. What is mean by automation?

3. What is a robot?

4. What are the rules of robot?

5. Why a robot used?

6. What is meant by robot anatomy?

7. Name the commonly used robot confiuration system?

!. What are the ty"es of automation?

#. Write are the $enefits of industrial automation?

1%. &ist the different ty"es of robots?

11. Write 'simo()s la*s of robotics?

12. What is mean by *or+s"ace?

13. What is mean by *or+ (olume?

14. What is meant by *or+ en(elo"?

15. What is meant by a accuracy of robot?

16. What is meant by "ay load ca"acity of robot?

17. What is meant by "recision of robot?

1!. What is re"eatability of robot?

1#. What is meant by ,uality of robot?

2%. -lassify the motion control of Robot arm?

21. What are the ubsystems of industrial robot?

22. What is meant Derees /f 0reedom?

23. o* much encoder need for measure 45 deree of freedom?

24. What are the 'd(antaes and disad(antaes of robot?

25. What are the limitations of robot?

PART B Questions (16 ar!s)

1. a Define a robot. With hel" of s+etch describe "itch ya* and roll motion of a robot

*rist.

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b Discuss the oriin and (arious enerations of robots. +etch and e"lain the *or+

en(elo"e of a cylindrical robot.

2. a Define the terms accuracy and cycle time in relation to a robot. +etch and

e"lain the oints and deree of freedom of a ointed arm robot.

b Differentiate bet*een o"en loo" and closed loo" ser(o systems. With the aid of

diarams e"lain the *or+in "rinci"le of directional control and flo* control (al(e.

3. a -om"are the (arious attributes of robot *ith those of human bein. "lain a robot

structure *ith a s+etch.

b What are the (arious ty"es of oints used in robots? +etch the follo*in robots

indicatin the oints and deree of freedom.

i -'R' robot. ii antry robot.

4. a o* do you s"ecify a robot? 8s robotics automation? Discuss the different

classification systems of robots.

b Discuss the differences bet*een ser(o controlled and non9ser(o controlled robots.+etch and e"lain the ser(o control system for "oint to "oint "ositionin.

5. a Define a robot. 8s robotics an automation? Discuss the (arious ty"es of oints used in

robots.

b Discuss the (arious enerations of robots. +etch and e"lain the ty"ical confiuration

and derees of freedom of *rist assembly.

6. a What is the *or+ en(elo"e of a robot +etch and e"lain t*o (ie*s to indicate the

*or+ en(elo"e of a

i -artesian robot. ii :olar robot.

b "lain the conce"t of accuracy and re"eatability of a robot. What are the different

confiurations of robots? Which of these confiurations *ould be most suitable for

i :lacin an obect in an o(en for heat9treatment.

ii :aintin a motor car body.

7. a What do you understand by deree of freedom;D/0? o* many D/0s are re,uired

to "osition an end effector at any "oint in 39D s"ace?

b What is the *or+ en(elo"e of a robot s+etch and e"lain t*o (ie*s to indicate the

*or+ en(elo"e of ai -ylindrical robot. ii 'nthro"omor"hic robot.

!. a What are the basic com"onents of a robotic system? "lain the functions of each of

the com"onents *ith a neat s+etch.

b tate the la*s of robotics and discuss the (arious mechanical desin considerations of

robots.

#. Write short notes on any about the follo*in

a Dynamic stabili

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2%. What is touch sensor?

21. &ist the com"onent of the force *rist?

22. What is a tactile array sensor?

23. What is the "roimity sensor?

24. What are the classifications of a "roimity sensor?

25. What is a rane sensor?

26. What is a (oice sensor?

27. What is a (ision sensor?

2!. What is "otentiometer?

2#. What is ins"ection?

3%. What is meant by ,uantisation?

31. What is meant by encodin?

32. What is meant by sam"lin?

33. What are the basic lihtin de(ices?

34. What are the "hases of '=D con(ersion?

35. What are the (arious techni,ues in imae "rocessin > analysis?

36. What is meant by imae data reduction?

37. What are the schemes in(ol(ed in imae data reduction?

3!. What is meant by *indo*in?

3#. What is by diital con(ersion?

4%. What is meant by sementation?

41. What are the techni,ues in(ol(ed in sementation?

42. What is meant by thersholdin?

43. What is meant by reion ro*in?

44. What is meant by ede detection?

45. What is meant by feature etraction?

46. What are the techni,ues used in obect reconition?

47. What is meant by tem"late matchin techni,ue?

4!. What is meant by structural techni,ue?

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4#. What are the electrical Dri(es in ani"ulators

5%. -lassified different ty"es of ste""er motor?

PART B Questions (16 ar!s)

1. a What are the merits and demerits of mo(in coil dc motors. +etch and e"lain the

*or+in of ste""er motors.

b What is "attern reconition? Describe a sensin de(ice to enerate the contour"icture of a *or+ "iece.

2. a What is robot (ision? Describe a (ision sensor used to ta+e the imae of an obect.

b Discuss res"onse accuracy and sensiti(ity in relation to robot sensors. "lain the

*or+in of "roimity and rane sensors.

3. a Distinuish bet*een shunt *ound motor and series *ound motor. +etch and e"lain

the "rinci"le of o"eration of ste""er motor.

b Distinuish bet*een tactile and non9tactile sensors. +etch and e"lain the *or+inof an acoustic sensor.

4. a -om"are ste""er motor and D.-. motor dri(es for a robot. +etch and e"lain a

hydraulic dri(e system used for robots.

b ' ste""er motor is used to dri(e a linear ais of a robot. @he motor is connected to a

scre*ed shaft ha(in a sinle start thread of "itch 2.5 mm. @he resolution desired for

the controlled motion is %.5 mm. DetermineA

i te" anles that are re,uired on the motor to obtain the resolution.

ii :ulse rate re,uired to dri(e the ais if the (elocity is !% mm=s.

5. a What is "attern reconition? $riefly describe a sensin de(ice to enerate the contour

"icture of a *or+ "iece.

b What are the different ty"es of sensors? -lassify them. +etch and e"lain the use of

a "roimity sensor.

6. a What are the ad(antaes of hydraulic actuator systems o(er electrical motors? +etch

and e"lain a "neumatic "o*er dri(e used for robots.

b What are the functions of sensors? o* do you sense the "ositional accuracy of a

robot? Describe the suitable ty"e of sensor used to measure the "osition.

7. Write short notes on any about the follo*in

a ydraulic dri(es.

b achine Bision.

c @actile sensors.