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#1
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Hot Wire Anemometry
Hello world,
does anybody know how to do a 'Hot Wire Anemometry'- Amplifier-Servo. I have made a sensor out of a small filament-lamp but am not sure about the amp. Somebody? Thanx in advance, // Tommy |
#2
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Hot wire anemometers require constant current control. The best way is to
insert a resistor in series with the hot wire and keep the measured voltage across the resistor constant. Therefore, this is a closed loop circuit. Harold "Tommy" wrote in message om... Hello world, does anybody know how to do a 'Hot Wire Anemometry'- Amplifier-Servo. I have made a sensor out of a small filament-lamp but am not sure about the amp. Somebody? Thanx in advance, // Tommy |
#3
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i looked on discovercircuits.com, i think, and found a 'rugged'
transistor based setup - slower to react than wire but still good, and PWM output - ive yet to build it cos i cant find the transistors easily. |
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