the heated time
DESCRIPTION
Man has always been enthralled by the marvels of the nature. Hence he invented Physics. This showed him an important field of the minutest possible substances in nature, electrons and photons. And as the time strays he tries to jumble various fields together, his recent being the combination of photons with electrons. Ever wondered what these minute particles can boom the power of engineering? Do you know how predators sense their prey? Ever given a thought as to why the finding of any planet/sun is a possibility along with their structure and distance? Ever tried to find how weather is forecasted or how cyclones are predicted and flowers bloom or a black hole can be detected? And to the most of one’s wonder, ever heard of seeing a past event using a simple engineering technique? Finally, can you capture the 37.5 °F of your body temperature on an image paper? The primitive knowledge used by nature wherein animals sense their prey by the temperature, astronauts search for planets and galaxies, or a past event can be regenerated using heat, is called Thermal Imaging. Most thermal-imaging devices scan at a rate of 30 times per second. They can sense temperatures ranging from -4 degrees Fahrenheit (-20 degrees Celsius) to 3,600 F (2,000 C), and can normally detect changes in temperature of about 0.4 F (0.2 C). There are two common types of thermal-imaging devices: Un-cooled Cryogenically cooled How thermal imaging works: A special lens focuses the infrared light emitted by all of the objects in view which in turn creates a very detailed temperature pattern called a thermogram. The thermogram created by the detector elements is translated into electric impulses. The impulses are sent to a signal-processing unit, a circuit board with a dedicated chip that translates the information from the elements into data for the display, where it appears as various colors depending on the intensity of the infrared emission. The combination of all the impulses from all of the elements creates the image. We see in the dark. We see through walls. And now . . . we see back in time.TRANSCRIPT
CONTENT WARNING:
ALL THE CONTENTS HENCEFORTH ARE
PRACTICAL REALITY AND NONE IS FICTITIOUS !!
WE ARE HOT!
Gunjan Gupta, Romil Shah
Department of Electronics and Communication Engineering,
Institute of Technology,
Nirma University, Ahmedabad, India PIN-382481
Email: [email protected], [email protected]
(M): 7874011424, 9727757880
- World through Thermal Imaging
A BRIEF GLANCE : INTRO
Thermal Imaging is all based on the concept of IR imaging.
Unlike visible band optical imaging sensors, there is a limited usage of wet film media with thermal imaging systems, most of which were based on electro-optical hardware.
To appreciate how thermal imaging system produce imagery without sunlight it is necessary to explore the underlying physics.
HOW TI WORKSA special lens focuses the infrared light emitted.
The focused light is scanned by a phased array of infrared-detector elements forming a patter called thermogram.
The thermogram created by the detector elements is translated into electric impulses.
The impulses are sent to a signal-processing unit, a circuit board with a dedicated chip that translates the information from the elements into data for the display.The signal-processing unit sends the information to the display, where it appears as various colors depending on the intensity of the infrared emission.The combination of all the impulses from all of the elements creates the image.
Quantum Well Imaging Photodetectors (QWIP) imager operating in the
longwave band.
QWIP imager operating in themidwave band
Imagery produced by L-3 Cincinnati Electronics 2048 x 2048 pixel midwave band imaging array(L-3).
USE OF THERMAL IMAGING IN MEDICINES:
Digital infrared thermal imaging(Medical Thermography)
Devices : ECG , EEG , etc.
Non-invasive, non-contact tool is completely safe and uses no radiation
Applications in fields such as : Rheumatology, Neurology, Oncology, Physiotherapy and sports medicine
COMMON APPS OF THERMOGRAPHY:
Extra-Cranial Vessel Disease
Neuro-Musculo-Skeletal
Vertebrae (nerve problems/arthritis)
Lower Extremity Vessel Disease
Breast pathologies
INDUSTRIAL APPS
AUDI AG uses infrared thermography to uphold its quality standards
Thermal imaging cameras help prevent power failures at utilities
Infrared Thermography helps to increase safety at nuclear power plants
Thermal imaging inspections help optimize steam transport at Royal Vopak.
MEASUREMENT AND TESTING PROCESS AT AUDI AG
On the tyre testbed: infrared camera detects rolling resistance
and heat development of tyre
Catalytic convertor testing: infrared camera looks at the heat distribution
MINIMIZING ENERGY LOSS IS HOT-ROYAL VOPAK
Heat leakage due to failing insulation clearly shows up on the thermal image.
THERMAL IMAGING IN LAW & SECURITY:
Fugitive searches Surveillance activities Hidden compartments (esp for IT dept.) Search and Locate Damage guide Tactical teams
REFERENCES:
• FLIR Systems• HOW STUFF WORKS – Thermal Imaging• MoroVision• InfraRed Camera Inc.• NCW 101 Thermal Imaging article by Dr. Carlo
Kopp• www.opentec.co.au• www.ebme.co.uk
CONCLUSION:
• Using Thermal imaging, various things not possible by a visible light and our sight can be seen, solved and used in our day to day life.
• Using of this tech in fields of Law is much more appreciable, in medicine to test and detect problems faster.
• Developing it and accepting it in life of a common man too. And make the invisible a visible reality.
“WE SEE IN THE DARK. WE SEE THROUGH WALLS. AND NOW . . . WE SEE BACK IN TIME.”
- A line from Dan Brown’s novel, ‘The Lost Symbol’, defining the use of thermal imaging in Law enforcement and detective work.
- And our source for inspiration.
THANK YOU