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Article #2019

Re: tachometers

#2019
From: Bob day
Date: Mon, 25 Jan 1993 20:22
34 lines
1783 bytes
>Hmmm
>
>I think this is backwards. The filament of an incandescent lamp 
>doesn't have enough time to cool down enough between cycles, so
>it should glow steadily. A fluorescent lamp, however, relies on
>the flow of electrons through a mercury vapor through the tube,
>and this can respond faster to the cycles of AC. 
>
>Whether they flash 60x per second or 120x per second I don't know.
>


 Ok the proof of the pudding is in the amount of brandy poured it at
 mixing time...... 

 Ok I pointed my (tacho) at a filament lamp and it reads 3000 on 2 blade.
 
 I then went out to the kitchen and did something I've never done before, 
 pointed it a a flourescent light, it read 30000, that means that the
 flourescant is flashing at 10 TIMES THE RATE OF AN INCANDESCANT BULB. I
 KNEW there was some magic going on in there...-- 


Only joking it read 3000. I guess that makes it an honorable draw....:-)

cheers

bob

Harrier Softnet Ltd    tel +44-734-731181              I'd rather be playing
Ivanhoe Rd             fax +44-734-734546              with my chopper
Finchampstead          email bob@harrier.demon.co.uk     O  / __________
Berkshire                                               -|-<>     /\======O
RG11 4QQ                                               _/ \_    __\/__
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From: bob@harrier.demon.co.uk (Bob day)
Path: arc1-ca.pugleaf.net!sparky!uunet!pipex!demon!harrier.demon.co.uk!bob
Subject: Re: tachometers 
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