SIX weeks/months industrial training report on BEL(BHARAT ELECTRONICS LIMITEDProject
training report Bel, gzb
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Transcript of training report Bel, gzb
PRESNTED BY RAGHWENDRA KUSHWAHA B.TECH (ECE)
F.I.T ENGG. COLLEGE MERRUT
INDUSTRIAL TRAINING AT
BHARAT ELECTRONICS LTD. GZB
ABOUT BEL
Bharat Electronics Limited (BEL) was established in 1954 as a public Sector Enterprise under the administrative control of Ministry of Defence.
It manufactures advanced electronic products for the defense.
BEL was among the first Indian companies to manufacture computer parts and peripherals under arrangement with International Computers India Limited (ICIL) in 1970s.
It has total employee strength of about 12000 people spread across 9 manufacturing units, and few regional offices.
MANUFACTURING UNITS BANGALORE (KANARATAKA) – 1954
GHAZIABAD (UTTER PRADESH)– 1974
PUNE (MAHARASHTRA)– 1979
MACHILIPATNAM (ANDHRA PRADESH– 1983
PANCHKULA (HARYANA)– 1985
CHENNAI (TAMIL NADU)– 1985
KOTDWARA (UTTER PRADESH)– 1986
TALOJA (MAHARASHTRA)– 1986
HYDERABAD (ANDHRA PRADESH)– 1986
PRODUCT RANGES
RADAR SYSTEMS
3-Dimensional High Power Static and Mobile Radar for the Air Force.
Low Flying Detection Radar for both the Army and the Air force.
Tactical Control Radar System for the Army.
Battlefield Surveillance Rader for the Army.
IFF Mk-X Radar systems for the Defence and export.
ASR/MSSR systems for Civil Aviation.
Radar & allied systems Data Processing Systems.
COMMUNICATIONS
Digital Static Tropo scatters Communication Systems for the Air
Force.
Digital Mobile Tropo scatters communication System for the Air
Force and Army.
VHF, UHF & Microwave Communication Equipment.
Bulk Encryption Equipment.
Turnkey communication Systems Projects for Defence & civil users.
Static and Mobile Satellite Communication Systems for Defence.
Telemetry /Tele-control Systems.
ANTENNA Antennae for Radar, Terrestrial & Satellite Communication Systems.
Antennae for TV Satellite Receive and Broadcast applications.
Antennae for Line-of-sight Microwave Communication Systems.
MICROWAVE COMPONENT Active Microwave components like LNAs, Synthesizer, and
Receivers etc.
Passive Microwave components like Double Balanced Mixers,
etc.
SERVICES OF BHARAT ELECTRONICS LIMITED (BEL):- DEFENCE PRODUCTS:-
Naval System
Military Communication Equipment
Radars
Tele Communication & Broadcasting Services
Opto Electronics
Electronic Warfare
Tank Electronics
NON-DEFENCE PRODUCTS:-
Electronic Voting Machine
Solar Products
Simputer
DTH
ROTATION PROGRAMUnder this students are introduced to the company by putting them under a rotation
program to various departments. The several departments where I had gone under my
rotational program are:
1. Test Equipment and Automation
2. P.C.B. Fabrication
3. Quality Control Works-Radar
4. Work Assembly- Communication
5. Magnetics
6. Microwave lab
Rotation period was to give us a brief insight of the company’s functioning and
knowledge of the various departments. A brief idea of the jobs done at the particular
departments was given. The cooperative staff at the various departments made the learning
process very interesting , which allowed me to know about the company in a very short time.
RADAR
The term RADAR was coined in 1941 as an acronym for
Radio Detection and Ranging. This acronym of American
origin replaced the previously used British abbreviation RDF
(Radio Direction Finding).
Echo is something you experience all the time. If you shout into a well or a canyon, the echo comes back a moment later. The echo occurs because some of the sound waves in your shout reflect off of a surface (either the water at the bottom of the well or the canyon wall on the far side) and travel back to your ears.
BASIC PRINCIPLE
Echo and Doppler Shift
Doppler shift is also common. You probably experience it daily (often without realizing it). Doppler shift occurs when sound is generated by, or reflected off of, a moving object. Doppler shift in the extreme creates sonic booms
Basic Radar System:
RADAR EQUATIONThe amount of power Pr returning to the receiving antenna is given by the radar equation:-
wherePt = transmitter power Gt = gain of the transmitting antenna Ar = effective aperture (area) of the receiving antenna σ = radar cross section, or scattering coefficient, of the target F = pattern propagation factor Rt = distance from the transmitter to the target Rr = distance from the target to the receiver.
RADAR SIGNAL PROCESSINGDistance measurementTransit time
RADAR TRANSMITTER
The radar transmitter produces the short duration high-power of pulses of energy that are radiated into space by the antenna. The radar transmitter is required to have the following technical and operating characteristics:
The transmitter must have the ability to generate the required mean RF power and the required peak power
The transmitter must have a suitable RF bandwidth.
The transmitter must have a high RF stability to meet signal processing requirements
The transmitter must be easily modulated to meet waveform design requirements.
The transmitter must be efficient, reliable and easy to maintain and the life expectancy and cost of the output device must be acceptable.
Picture: transmitter of P-37
An easy block diagram of a fully coherent radar
RADAR APPLICATIONS Air traffic control uses radar to track planes both on the ground and in the air,
and also to guide planes in for smooth landings.
Police use radar to detect the speed of passing motorists.
NASA uses radar to map the Earth and other planets, to track satellites and space
debris and to help with things like docking and maneuvering.
The military uses it to detect the enemy and to guide weapons.
THANK YOU
QUERIES???