CIRCUIT IDEAS REMOTE-CONTROLLED FAN REGULATOR Dr C.H. VITHALANI sing this circuit‚ you can change the speed of the fan from your couch or bed. Infrared receiver module TSOP1738 is used to receive the infrared signal transmitted by remote control. The circuit is powered by regulated 9V. The AC mains is stepped down by transformer X1 to deliver a secondary output of 12V-0-12V. The transformer output is rectified by full-wave rectifier comprising diodes D1 and D2‚ filtered by capacitor C9 and regulated
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What is the sequence of bands 3 through 6 of the Landsat TM-5 sensor? A. NIR‚ NIR‚ Red‚ Green. B. Green‚ Red‚ Near Infrared‚ NIR. C. Red‚ NIR‚ NIR‚ Thermal Infrared. D. Blue‚ Green‚ Red‚ NIR. E. Red‚ NIR‚ Thermal Infrared‚ Mid Infrared. 8. Which of the following aggregate surfaces would have the HIGHEST reflective qualities (all things being equal) in the NEAR INFRARED parts of the spectrum? A. Trees and grass. B. Water and bare soil. C. Bare soil and urban. D. Water and crops. E.
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What is Remote Sensing? Remote sensing‚ in simplest words‚ means acquiring information about an object without touching the object itself. Conventionally‚ however remote sensing has come to imply that the sensor and the target are located remotely apart and the electromagnetic radiation serves as a link between the sensor and the object‚ the sun being the major source of energy illuminating the earth. The part of this energy is reflected‚ absorbed and transmitted by the surface. A sensor records
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increased levels of carbon dioxide‚ CFCs‚ and other pollutants. The greenhouse effect is the trapping of the sun ’s warmth in a planet ’s lower atmosphere due to the greater transparency of the atmosphere to visible radiation from the sun than to infrared radiation emitted from the planet ’s surface. In simpler terms‚ this means that the pollution emitted from the earth‚ such as the gasses from factories‚ cars etc. enter the atmosphere and the co2 from these gases absorb the heat from the sun and
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present inside the hall is also displayed on the seven segment displays. It receives the signals from the sensors‚ and this signal is operated under the control of software which is stored in ROM. Microcontroller AT89S52 continuously monitor the Infrared Receivers‚ When any object pass through the IR Receiver’s then the IR Rays falling on the receiver are obstructed ‚ this obstruction is sensed by the Microcontroller. Block Diagram
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process. First‚ sunlight radiates from the sun‚ through space‚ to Earth’s atmosphere. Second‚ sunlight enters the atmosphere and hits Earth. Some of it turns into heat energy in the form of infrared light. The heat gets absorbed by surrounding air and land‚ which in turn makes it warm. Third‚ greenhouse gases trap infrared rays that are remitted into the atmosphere. Finally‚ the gas then absorbs the light and is remitted back to the Earth’s surface and warms it even more. Left on it’s own this natural process
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above what it would be in the absence of the gases.[1][2] Solar radiation at the frequencies of visible light largely passes through the atmosphere to warm the planetary surface‚ which then emits this energy at the lower frequencies of infrared thermal radiation. Infrared radiation is absorbed by greenhouse gases‚ which in turn re-radiate much of the energy to the surface and lower atmosphere. The mechanism is named after the effect of solar radiation passing through glass and warming a greenhouse‚ but
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Visible light Gamma rays Radio waves Electricity A surface heated by the sun converts the energy of the light into infrared energy which is a form of radiant energy Cell phones utilize radiant energy to function Magnetic motor generators that utilize neodymium magnets create radiant energy Audio signals that come to home or cars via radio waves Ultraviolet light Infrared radiation The light emitted from a campfire The light generated from a light bulb A heated brake disc giving off heat
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What is the impact of human activity on the natural environment? Answer: Humans are a part of the natural environment. Unfortunately‚ we have not yet learnt to moderate our activities in such a way as to help the environment. Human activities often lead to degradation of the environment. Impacts of humans include: • pollution - land‚ freshwater creeks and rivers‚ seas and oceans‚ and air • deforestation and destruction of habitats • endangerment and extinction of flora and fauna species
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In-House Practical Training Title: I.R. Auto Breaking Submitted to Harmony School Of Engineering and Technology‚ AUUP Guided By: Submitted By: Ms. Deepa Mudgal Name of the Student-Karan Kushwaha Enrolment.No. A2305413133 Move No. 133 Harmony UNIVERSITY‚ UTTAR PRADESH GAUTAM BUDDHA NAGAR Affirmation We express profound feeling of appreciation to our aide Mrs. Deepa Mudgal (Faculty Guide) for urging us to make the undertaking on I.R Auto Breaking. Her devotion and distinct fascination
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