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People Sensors

Muscle motion sensors

John Mullan

I have seen an interesting gizmo on the web that places a wire in two opposing walls. One essentially a transmiting antenna and the second a receiver. It is adjusted to the "inductance/reactance" of an empty room. When a body enters the room, it capacitively changes the field. The circuit detects this and knows that the room is occupied.

Proximity

Breath Pressure Sensors

see also:

file: /Techref/io/sensor/meat.htm, 1KB, , updated: 2006/8/21 12:18, local time: 2024/12/26 15:59,
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