In the two hours talk, we have heard many inputs given by Mr. Vivek. He start the talk with the Overview of Electronic System. During this time, we all have been told about the definition of electronics and electronic system.
ELECTRONICS : ELECTRICAL CIRCUITS THAT INVOLVE ACTIVE ELECTRICAL COMPONENTS SUCH AS VACUUM TUBES, TRANSISTOR AND DIODES.
ELECTRONIC SYSTEM : GROUPINGS OF ELECTRONIC CIRCUITS AND COMPONENTS WHICH ARE DESIGNED TO ACCOMPLISH ONE OR MORE COMPLEX FUNCTIONS.
Mr. Vivek also explained to us more about electronic systems. Electronic system is fundamental to our daily life. It also played a key role in advancement of technology. In addition, it will be a mainstay in future development.
Other than that, he also have show us the progression of the electronic system. You can see from the following :
1. Large =====> Small =====> Miniature
2. Simple =====> Complex Architecture
3. Analog =====> Digital
The SECOND thing that he told us is about the 'Role of Electronic in Industry'. I will simply jot it down in a point form :~
1. Vital to current information and technology era.
2. Penetrated seamlessly through various industries.
3. a catalyst to enhanced production and productivity within industry.
4. Most industries today are heavily dependent on it for their daily operations.
The electronics also conventional classified into :~
1. Consumer.
2. Industrial.
3. Defense.
4. Communication.
5. Information Processing System.
The important thing that we should know about electronic is that it plays two crucial parts in industry, as a platform for development or design of new systems and as a means to increase productivity of current systems.
Next, we should go through the IMAGING INDUSTRY WORLD...
Imaging is the representation of an objects outward form.
CHEMICAL IMAGING ==> SIMULTANEOUS MEASUREMENT OF SPECTRA AND PICTURES.
DIGITAL IMAGING ==> CREATING DIGITAL IMAGES, GENERALLY BY SCANNING OR THROUGH DIGITAL PHOTOGRAPHY.
GEOPHYSICAL IMAGING ==> SATELLITE.
MEDICAL IMAGING ==> CREATING IMAGES OF THE HUMAN BODY OR PARTS OF IT, TO DIAGNOSE OR EXAMINE DISEASE.
MOLECULAR IMAGING
OPTICAL IMAGING
RADAR IMAGING ==> FOR OBTAINING AN IMAGE OF AN OBJECT, NOT JUST ITS LOCATION BUT ALSO SPEED.
THERMOGRAPHY ==> THERMAL IMAGING
The advent of electronics have moved the imaging into new heights. This leads the development of new methodologies. Imaging technology have moved into new wavelength spectrums for commercial usage.
Now, we move on the 'Basic Concepts and Terms of Imaging'....
@ PIXELS AND RESOLUTION
~ A digital image is formed by pixels.
~ Smallest piece of information in an image.
~ Often represented using dots, square or rectangles.
~ More pixels in an image, the sharper and clearer the image is.
@ VIDEO AND FRAMES
~ A digital stream of video is made up of a group of pictures (Frames) captured across a period of
time.
~ More frames per second, the lesser the jitter in the video.
@ NTSC AND PAL
~ Human eye require a minimum 25 frames a second.
~ PAL TV standard :-
- 25 frames per second
- Resolution of 320 by 720
- Asia, Europe, South America and East Africa
~ NTSC TV standard :-
-30 frames per second
- Resolution of 480 by 720
- North America and Japan
Imaging industry requires processing huge quantities of data in a short span. Electronics eases these complexities, making the technology affordable.
ELECTRONICS WITHIN THERMAL IMAGING INDUSTRY
^.^ Thermal imaging originally a spin-off defense electronics.^.^ Makes use of wavelength in 7-14 micrometer to form an image.
^.^ Sensors make use of focal plane arrays and are commonly Indium Gallium Arsenide (In Ga AS).
^.^ Often referred to as a 'Dirty Imaging System' compared to CCD and CMOS architectures.
^.^ A lot of pre and post processing of data is required.
^.^ Thermal requires Non-Uniformity Calibration (NUC) on data stream.
^.^ Data varies in state and space.
^.^ Enables implementation of intensive algorithms such as Kalman Filters, Edge Detection and
Neural Network Modeling.
^.^ Incident Energy(I) = Emitted Energy(E) + Transmitted Energy(T) + Reflected Energy(R)
^.^ Equations are expanded into models that are described in electronics.
^.^ Electronic processing data allows thermal imaging to be used in various other industries :-
1) Maintenance
2) R&D
3) Medical research
^.^ Electronics and the advancement of technology has huge impact on thermal industry.
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