wind meters

Posted on Feb 6, 2014

This circuit is a circuit diagram gauges simple wind meter. Working principle of this circuit are the transistors Q1 and Q2 are used to feel the wind. The relationship between thermal impedance and the surrounding transistors utilized wind speed here. Transistors Q1 and Q2 is the cable that VCE of Q1 is higher than Q2 and therefore power dissipati

wind meters
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on will be higher. The wind causes the cooling so that Q1 VCE of changes. Which ended at different power dissipations and the different variations detected by R10. This voltage opamp and strengthened to generate comparable Fout wind speed. To air is still Fout will 0V and at 75 m / s wind speed will Fout 2. 5V. A voltmeter FSD Fout 3V is connected across the terminal and ground can be used as a screen. The following is a schematic drawing: The circuit requires 5V DC voltage. To work properly, the air must pass through two transistors (Q1 and Q2). Most of the resistors are not used here are the standard values. So, you should use a combination (series or parallel) resistors to achieve certain values. Please note that the resistor values is very important in this circuit.

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