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Investigation Report - What are the most effective materials that can be used to block off infrared (IR) signals emitted by a TV remote control?
Member rating: No Rating | Words: | Submitted: Mon Jul 19 2004
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Investigation Report What are the most effective materials that can be used to block off infrared (IR) signals emitted by a TV remote control? Abstract: When I watch TV, I often wonder how the signal sent by the remote control can travel by an invisible path to reach the receiver some 2 metres away. But what if that invisible path was blocked off using particular materials? Would the signal still reach the receiver? Hypothesis: Transparent materials such as glass and thin, pallid materials such as paper, tissue and linen are the least effective, while solid materials such as wood and metal will be most effective in blocking off weak IR signals emitted by the TV remote. Aim: To test which materials are most effective in blocking off signals emitted by a standard TV remote control. And to determine if thickness of material plays a role. Variables: Independent variable - materials tested Dependent variable - signal blocked or...
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