Central Instrumentation Centre · STROBOSCOPE A stroboscope is an instrument that emits a series of...
Transcript of Central Instrumentation Centre · STROBOSCOPE A stroboscope is an instrument that emits a series of...
Central Instrumentation Centre
Central Instrumentation Centre (CIC) facility, at AITAM, has been created with an objective of
providing a central facility of latest and advanced instruments to the faculty and students of all the
departments of the institute. It houses highly sophisticated instrumentation equipment. Also the centre
provides service to troubleshoot and maintenance of Electrical and Electronic Instruments like,
ammeters, voltmeters, CROs, RPS, etc., This centre is established and maintained by the department
of Electronics and communication Engineering.
OBJECTIVES:
To acquire and develop capability for preventive maintenance and repair of Electrical and
Electronic Instruments.
To provide facilities of instrumentation equipment to students and faculty.
To train technicians for maintenance and operation of instruments.
FACILITY AVAILABLE:
1. RTD
2. LVDT
3. CAPACITIVE TRANSDUCER
4. STROBOSCOPE
5. BOURDON TUBE
RTD Principle and working:
RTD is abbreviated as Resistance Temperature Detector. All conductors have a positive
temperature coefficient of resistance (PTCR) .This type of transducer is used for temperature
measurement. The basic concept used is that electrical resistance of metal changes in accordance with
the temperature. Principle used is that the resistance of a conductor changes in proportion with the
change in temperature.
The unknown temperature is determined in terms of electrical resistance of the conductor, which
senses the temperature. The change in resistance of this device is precisely determined by resistive
bridge circuit or by ohmmeter.
LVDT
LVDT stands for linear variable differential transformer. It works on the principle of mutual induction
LVDT. It consists of one primary coil and two secondary coils, wounded on a non-magnetic form and
Ferro-magnetic core is placed between primary and secondary coils through form as shown in figure.
Working diagram:
CAPACITIVE TRANSDUCER
The principle of operation of capacitive transducers is based upon the familiar capacitance equation of
parallel plate capacitor
d
AC
Farads
where C = capacitance
A = area of each plate
D = Distance between the plates
= Permittivity constant
The capacitance transducer consists of two half circular parallel plates, one is fixed and other is
movable on a common shaft, as shown in fig. Angular displacement to be measured is applied to the
moving plate. This angular displacement, changes the effective area between the plates, causing
changes in the capacitance. This change is linear because change in area and hence capacitance is
directly proportional to angular displacement.
STROBOSCOPE
A stroboscope is an instrument that emits a series of brief, intense flashing lights at specific intervals.
Principle and working
. When the flashing light from a stroboscope is directed the rotating disk which is connected to
the shaft whose speed to be measured. The stroboscope makes, the disk rotating at high speed appear to
stand still due to the visual persistence of the human eye and the mark on it.
When the frequency of the flashing lights from the stroboscope is adjusted to synchronize with the disk
rotating speed, the number of apparently stationary mark you see corresponds to the actual number of
marks.
BOURDON TUBE
Most pressure measuring devices use elastic members for sensing pressure at the primary stage. These
elastic members are of many types and convert pressure into mechanical displacement which is after
converted into an electrical form. These devices are many a time known as “force summing devices”.
The principle of working of these devices is; the fluid whose pressure is to be measured is made to press
the pressure sensitive element and since the element is an elastic member, it deflects causing a
mechanical displacement. The displacement is proportional to the pressure applied. The displacement is
then measured with help of electrical transducers. The output of electrical transducers is proportional to
displacement and hence to the applied input pressure.
The commonly used pressure sensitive device is Bourdon tubes. The bourdon tubes are
designed in various forms. These are:
C type
Spiral
Twisted
Helical.
The Bourdon tubes are made out of an elliptically flattered tube bent in such a way as to
produce the above mentioned shapes. One end of the tube is seated or closed. The other end is open for
the fluid to enter. When the fluid, whose pressure is to be measured enters the tube, the tube tends to
straighten out on account of the pressure applied. This causes a movement of the free end and the
displacement of this end is amplified through mechanical linkages. The amplified displacement of free
end may be used to move a pointer on a scale calibrated in terms of pressure or may be applied to a
electrical displacement transducer whose output may be called in terms of the pressure applied.
The C type Bourdon element is most commonly used for local indication but it is also used for
pressure transmission & control applications. The tube which is oval in section is formed into an arc of
2500 and hence the name C for the configurations, which is as shown in the fig.
The displacement of tip is:
Δa=0.05
333.02.0
t
x
y
x
p
r
E
ap
Where E is the modulus of elasticity:N/m2
P is the applied pressure:N/m2
Thus relationship between the displacement of tip and the applied pressure is non linear i.e
each pressure increment doesn’t produce a corresponding tip movement .However, a linear relationship
between the deflection of the pointer and the applied pressure is obtained using the geared sector and
pinion movement or other mechanical means .The accuracy of C type Bourdon tubes varies from ±0.5%
to ±2% or poorer. However the normal accuracy is about ±1%.
Central Fabrication Facility
Central Fabrication Unit at Aditya institute of Technology and
Management is an educational platform where science is translated into
technology. The Institute provides extensive student support via centralized
fabrication unit in addition to the departmental laboratories.
The Central fabrication unit consists of various facilities/shops with Well-
equipped latest tools, equipments and machineries to support the students to
fabricate their experimental set-up with the required quality and quantity within
stipulated time. Further, the unit supports all branches of student’s research,
academic projects, minor and major projects of B.Tech, M.Tech and Ph.D and
supporting the college in infra structure fabrication works. Fabrication works
pertaining to sponsored research and consultancy are also done at this unit.
Various facilities are also existing for the manufacture of components, parts and
repair and servicing works.
At central fabrication unit students have the access to the following facilities:
1. Carpentry Shop
2. Fitting Shop
3. Tin Smithy Shop
4. Forging Shop
5. Foundry Shop
6. Welding Shop
7. Machine Shop
8. Metrology Section
CENTRAL FABRICATION UNIT
CENTRAL FABRICATION UNIT STAFF
Carpentry Shop
Carpentry shop provides the facility for woodworking, woodcutting, shaping,
patterns and repairs of wooden structures, shelvs etc. Students work with wood
for various applications. Further, the students have the access to design different
types of wooden patterns and joints.
Fitting Shop
The fitting shop is related to assembly of parts, bringing the dimension or shape
to the required size or form, in order to secure the necessary fit. Students identify
and select various tools for holding, assembling or dismantling the work piece
and carry out basic work bench activities such as marking, sawing, filing, drilling
and fitting to ensure work pieces fitting. Further, students can produce a product
through the given technical drawing by using appropriate engineering tools and
equipments in fitting shop.
Tin Smithy Shop
Tin smithy shop supports the students to prepare their minor and major projects
involving sheet metal bending, trimming, shaping the sheets to their desired
shapes related to engineering articles. Common examples of sheet metal works
done by the students at sheet metal shop are hoppers, canisters, guards, covers,
pipes, hoods, funnels, bends, boxes etc.
Forging Shop
Forging shop provides the facility for shaping of metal in cold and hot
working stages. Structures made of mild steel are fabricated at this facility.
Students develop the steels structures for their automotive designs. Utilize hand
forging for relatively small components, Machine forging for medium sized and
drop forging for large components.
Foundry Shop
Students use foundry shop to produce their own metal castings. Required
patterns are prepared in the carpentry shop using timber wood and then brought
to the foundry. Metals/wax materials are cast into shapes by melting them into a
liquid, pouring the metal/wax in a mold, and removing the mold material or
casting. The most common materials processed in the foundry shop are
Aluminium and wax in few cases.
Welding Shop
Welding is an important fabrication and sculptural technique, possessing
both practical and artistic capabilities. The Welding shop provides students to
construct and/or repair metal structures and equipment using welding fabrication
procedures, including those associated with SMAW, GMAW, GTAW, fuel-
oxygen. The facility is equipped with advanced welding machines and cutting
processes. Students are acquiring skills during welding processes. The students
learn further, industrial safety measures.
Machine Shop
The Machine shop is dedicated to taking the theoretical knowledge learned in a
classroom environment and applying it to real world tactile solutions. Machine
Shop provides engineering students with a well-equipped, safe working
environment in which the students can design and manufacture their projects
using various machine tools and cutting tools. The shop contains a spectrum of
equipment and technology ranging from simple hand tools to advanced machine
tools including CNC Lathe. The facility has become an unmatched resource,
accessible to students and staff across multiple disciplines and departments.
Metrology section
Students once they fabricate their models/projects, they use the metrology
instruments to check the internal and external dimensions of the models. The
metrology section is having advanced computerized instruments. Students
identify and use reference materials to ensure good quality, accurate, traceable
measurement and dimensional accuracy for accurate results as per Indian
standards.
For any fabrication works contact:
Dr.C.J.Rao Central Fabrication Unit, Mobile: 9440416577 Email: [email protected]
Photo Gallery of Central Fabrication Unit
Carpentry Shop
Fitting Shop
Tin Smithy Shop
Forging Shop
Foundry Shop
Welding Shop
Machine Shop
Metrology Section
Media laboratory/Business Lab/Studios Media Laboratory
Media laboratory was started in August 2011 for research and development, also providing
media services to the Aditya Institute of Technology and Management (AITAM), Tekkali,
Srikakulam district. It operates in creating innovative scenarios for teaching, learning and
research as well as their implementation at AITAM.
The main objective of this club is to bring out the hidden talent in students related to
photography, movie making and other such activities. Cultural activities have always been an
integral part of all the fests in our college. The main agenda of our clubs is to bring all such
interested candidates under one roof and give them a platform so that they can showcase their
talent and passion. The club is taking its steps to assemble all the passionate students that we will
deliver good directors, artists, dancers and singers from this laboratory.
Activities in Media Lab:
The Media Lab encourages and supports faculty members and students in the following
activities:
Utilizing media and educational technologies in teaching(eg: e-learning, media-aided
project learning)
Contemporary distribution and enrichment of teaching and research materials (e.g:
streaming media lectures and presentations)
Conducting workshop and train the students in designing, editing, photography and
music.
Encourage students doing in short films related to public issues and awareness on social
events
Organizing cultural fest where the student can show their talents of their interest.
Motivating the students to participate national and district cultural fests and youth
festivals.
Facilities and equipment in Lab:
2 X PC workstation for audio/video processing
I5 processor with 1TB hard disk, 1GB RAM
SONY video hand cam-1
DSLR Nikon D750- semi professional camera with wide lenses
Strangers 120pm speakers X 2
Studio master speaker -1
AHUJA amplifier 7000 – 1
SIMPEX 23 plain Strobe lights kit
AHUJA SRX 500 speakers X 2
Keyboard – CASIO
Acoustic and electrical Guitars
SHURE microphones with cable X 4
CARLSBRO electronic drum kit -1
One photopro Tripod and SEGATE 2TB hard disk
SIMPEX Manual Flash
ACTIVITY IMAGES:
MEDIA LAB AND OTHER FACILTIES
Research/Statistical Databases
RESEARCH DATABASE The Central library has been established with state-of-the-art infrastructure to the International
Standards with Reference and textbooks of national and international authors, International and
national Journals & Non-book materials are available to cater to various fields. Also we have
established a digital platform AITAM DIGITAL LIBRARY to share the text, video, and audio
materials to students and faculties and support them in their self-learning process.
Our Digital Library includes RESEARCH DATABASE that contains full-text articles or
citations to articles published in academic journals, magazines and newspapers, e-books
consisting of text, images or both readable on computers and other electronic devices
Digital Library
Statistics Database The Digital Library provides access to a number of databases where statistics on a range of
subjects can be found. Statistical databases give important information that supports
scholars/researchers/ and students in their coursework, research, and project respectively.
Particulars of subscription given below.
IEEE SUBSCRIPTION
ASME SUBSCRIPTION
ASCE SUBSCRIPTION
N.LIST SUBSCRIPTION
DELNET (DEVELOPING LIBRARY NETWORK) SUBSCRIPTION
J.GATE SOCIAL AND MANAGEMENT, ENGINEERING AND TECHNOLOGY
SUBSCRIPTION
NPTEL LAN THROUGH COLLEGE SERVER
NATIONAL DIGITAL LIBRARY OF INDIA INSTITUTION SUBSCRIPTION
JOURNALS ONLINE SUBSCRIPTION
INAGARATION OF TECHNICAL BOOK FAIR
ORGANIZED TECHNICAL BOOK FAIR FOR RESEARCHERS