1. What are the key elements of Mechatronics
system?
sensors
and actuators
signals
and conditioning
digital
logic system
computer
and display devices
software
and data acquisition
2. Mention the
functions of a Mechatronics system.
It allows to integrate the mechanical systems with micro
electronics to obtain the process design automation
It ensue the higher efficiency and reliability for
the quality of products 3. What do you understand by signal conditioning?
A signal conditioning mans manipulating an analog
signal in such a way that it meet the requirement of the next stage for further
processing.
4. Give an example for a transducer and state
its transduction principle.
Transducers are device which
converts an input of one form of energy into an output of another form of
energy.eg thermocouple
5. List any
four types of sensors and mention their features.
1.based on power
requirements passive and active
2.based on the type of output analog and digital
3.Based on sensing primary and secondary
6. State the
advantage of capacitive type proximity sensor.
capacitors are noiseless
high accuracy high sensitivity high resolution
7. What is
RTD? State its applications.
It is sensor used to measure the
temperature by correlating the resistance of the rtd element of temperature
Application
a. precision
process temperature control(textile, chemical ,food)
b. automatic
temperature control(test chamber , oven temperature)
8. List
down the type of proximity sensor . optical encoders
hall effects
capacitive sensors proximity switches
9. Distinguish between position sensors and
light sensors .
A position sensor is used to monitor the position
of the throttle in an IC engine. Its located on the spindle so that it can
monitor the position of the throttle
The light sensors enables a robot to detect light
. Its uses cadmium sulfosolenide (cds)photoconductive photocell. The light
sensor can give the robot vision and make it easier for it to operate
autonomously.
7. What
are the elements of the closed loop control system?
The various elements of a closed loop control
system are, a. Comparison element b. Control element c. Correction element d.
Process element e. Measurement element
8. What
are the two types of feedback loop?
The two types of feed back loop are, a. Positive
feed back loop b. Negative feed back loop. "The feedback is said to be
negative/positive feedback when the signal; which is feed back, subtracts/adds
from the input value. It is required to control a system. The control elements
decide what action to take when it receives an error signal"
9. What
are the types of control elements?
There are
two types of control elements. They are
a.Hard –
wired systems
b.Programmable
systems
10. What
are the main applications of mechatronics?
Washing machines, dish washers, micro ovens,
cameras, camcorders, robots, automatic conveyors, computer-controlled machines
11.
Obtain the basic functions of control systems.
1.To
minimize the error between the actual and desired output
2.To minimize
the time response to load changes in the system
12.
What are the types of control system?
Open loop
system
Closed
loop system
13. List
down the requirements of control systems.
Stability
Accuracy
Response
14.
Give an example for open loop system and closed
loop systems. 1. Closed loop system – Automatic water level controller
2. open loop system - Electric fire
15.
Compare open loop control system and closed loop
control system. Open loop systems
It is
suitable where accurate positioning of the tools is not required
System is
very simple
It is
suitable for rough works
Error is
not currently checked and rectified
Closed
loop systems
The
feedback signal controls the table position accurately
Is used
almost in all automation process
Its not
suitable for rough works
Error is
currently checked and rectified
16.Write
about the Mechatronics approach in a micro-processor – controlled washing
machine?
In the microprocessor-controlled washing machine,
a mechanical system has become integrated with electronic controls. As a
consequence, a bulky mechanical system is replaced by a much more compact
microprocessor system, which is readily adjustable to give a greater variety of
programs.
17. What
is the larger scale application of Mechatronics?
A larger scale application of Mechatronics is a
Flexible Manufacturing engineering System (FMS) involving computer – controlled
machines, robots, automatic material conveying and overall supervisory control.
18.
List some of the applications of Mechatronics?
1. Home
Appliances: Washing machine, Bread machines etc
2. 2.
Automobile: Electrical fuel injection, Antilock brake system
3. 3.
Aircraft: Flight control, Navigation system
4. 4.
Automated Manufacturing
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