Low-Cost Anemometer Fights Dust


Posted on Jan 12, 2013

This application note describes a low-cost circuit that can detect when a chassis fan filter has become clogged with dust. It does this by using a temperature sensor to determine the rate of cooling of a transistor in the air path of the cooling fan, thereby implementing a simple thermal anemometer.






Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

LED Voltmeter for Cars
Sun wake-up call
Active-antenna
calibration
Self-powered Fast Battery-Testers
Fun with LEDs
Servo controlling circuit
DDS-based automatic tracking frequency ultrasonic generator
Sound and light double control switch socket electrical circuit diagram
DW10M-200 400 600 type excitation switch control circuit



Top