Home  |  Circuit diagrams  |  Electronics projects  |  Store  |  Links  |  Contact  |  Privacy policy  |  Sitemap

..::::..





Air Flow Detector

Air Flow Detector

This simple circuit uses an incandescent lamp to detect airflow. With the filament exposed to air, a constant current source is used to slightly heat the filament. As it is heated, the resistance increases. As air flows over the filament it cools down, thus lowering it's resistance. A comparator is used to detect this difference and light an LED. With a few changes, the circuit can be connected to a meter or ADC to provide an estimation on the amount of air flow.

Parts:

R1 100 Ohm 1/4W Resistor
R2 470 Ohm 1/4W Resistor
R3 10k 1/4W ♦Resistor
R4 100K 1/4W Resistor
R5 1K 1/4W Resistor
C1 47uF Electrolytic Capacitor
U1 78L05 Voltage Regulator
U2 LM339 Op Amp
L1 #47 Incandescent lamp with glass removed (See "Notes") LED
MISC Board, Wire, Sockets for ICs, etc.

Notes:

1. The glass will have to be removed from L1 without breaking the filament. Wrap the glass in masking tape and it in a vise. Slowly crank down until the glass breaks, then remove the bulb and carefully peel back the tape. If the filament has broken, you will need another lamp. v

Source: Electronics Lab

..:: Important ::..

Read disclamer, please!

 

Circuit diagrams home  |  Circuit diagrams  |  Electronics projects  |  Store  |  Links  |  Privacy policy  |  Contact


Cialis 5 mg senza ricetta Effetti collaterali del Cialis 5 mg Ordina Cialis 20mg Consegna a domicilio di Cialis originale in Svizzera Acquista Viagra in Svizzera senza prescrizione Cialis 10mg senza ricetta Dove comprare Viagra in farmacia online Sconto Cialis 5mg Dónde adquirir Reduslim Spedra Avanafil in vendita online Acquista Viagra in Svizzera senza prescrizione Dónde comprar Cialis Comprar Viagra Contrareembolso Descuento Cialis 5 mg Comprar viagra original Efectos secundarios de Cialis 5 mg Reduslim resultados Remedios para la Disfuncion Erectil Cilis vs Viagra Aviator ???? ?? ?????? Acquisto Cialis 5 mg online Cialis 5 mg effetti collaterali Comprare Cialis 20mg a buon prezzo Consegna a domicilio di Cialis originale in Svizzera Acquisto online di Viagra senza ricetta in Svizzera Cialis 10mg Acquistare Viagra in farmacia online Costo del Cialis 5mg Reduslim opiniones Comprare Spedra Avanafil senza ricetta online Dove comprare il Viagra in Svizzera Comprar Cialis barato precio Viagra genérico Descuento Cialis 5 mg Viagra sin receta Cialis 5 mg efectos secundarios severos Reduslim pérdida de peso Problemas de erección tadalafilo en venta avanafil prezzo cialis 20 mg prezzo cialis effetti benefici cialis 10 mg Reduslim Kaufen pulse x coin price avanafil prezzo buy cialis or generic tadalafil ?????? ?????? ??????????? ?????? ???????? ?????? ?????? ????????? ?????? ?????? ???????????? ?????? ?????? ? ?????? ??????????? http://diplomy-originaly.com ?????? ?????? ????? ?????? ?????? ? ??????? ??????????? ?????? ?????? ???????? ?????? ?????? ???????????? ?????? ?????? ???????????? http://diplomsagroups.com ?????? ?????? ????????? ??? ?????? ?????? ?????? ?????? ????????? ???? ?????? ?????? ? ??????? ??????????? ?????? ???????? http://sreestrom.ru/ ?????? ???????? ?? 11 ????? ?????? ?????? ?????????? ?????? ?????? ???? ?????? ?????? ? ???????? ?????? ?????? ? ?????? ??????????? https://russian-diplom.com ?????? ?????? ????????? ? ?????????? ? ?????? ?????? ?????? ???????????? http://rudiplomirovanie.com ?????? ?????? ? ??????? ?? ? ?????? ?????? ?????? ???? ?????? ?????? ???????? ?????? ?????? ? ??????? ?? ? ?????? ?????? ???????? https://premiums-diploms.com ?????? ?????? ? ???????? ?????? ?????? ????? http://russdiplomiki.com ?????? ?????? ????? ? ?????????? ? ?????? ?????? ?????? ??????????? https://diplomansy.com ?????? ?????? ? ?????????? ? ?????? ?????? ?????? ?????? ???? https://diploms-asx.com ?????? ?????? ? ?????????? ? ?????? ?????? ?????? ?????? ? ??????? ??????????? ?????? ?????? ????????? ???? ?????? ?????? ? ?????????? ? ?????? ???? ?????? ?????? ? ??????? ??????????? https://eonline-diploms.com ?????? ?????? ????????? ? ?????????? ? ?????? ?????? ????????????? ? ???????? http://free-diplommi.com ?????? ????????? ?????? ?????? ?????? ????????????? ? ???????? http://diplomrussian.com ?????? ?????? ?????????? ?????? ?????? ?????? ? ?????? ??????????? ?????? ?????? ???????????? ?????? ?????? ???? ? ?????????? ? ?????? ?????? ?????? ????????? ?????? ?????? ???????? ?????? ?????? ???? ? ?????????? ? ?????? ?????? ?????? ???????? ?????? ?????? ?????? ?????? ? ?????????? ? ?????? ???? ?????? ?????? ???????? ?????? ???????? ?????? ?????? ????????? ? ?????????? ? ?????? ?????? ????????????? ? ????? ?????? ?????? ????? ?????? ?????? ????????? ? ?????????? ? ?????? ?????? ?????? ? ?????? https://diplomsy-landsy24.ru/ ?????? ?????? ???? ? ?????????? ? ?????? ??? ?????? ?????? http://diploms-service.com ?????? ?????? ????????? ? ?????????? ? ?????? ?????? ?????? ???????????? https://kyc-diplom.com ?????? ??????????? ?????? ? ?????????? ? ?????? ?????? ?????? ???????????? ??? ?????? ?????? ?????? ?????? ? ???????? ??? ?????? ???????? https://originaly-dokuments.com ?????? ?????? ? ?????????? ? ?????? ?????? ?????? ?????? ???? https://diplomy-grup24.com/ ?????? ?????? ? ?????????? ? ?????? ????