Analog meters

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tsutt
Posts: 264
Joined: Fri Jan 06, 2012 1:12 pm

Re: Analog meters

Post by tsutt »

Robert would you like to explain. its a one direction meter. its says FS - 10 rect. on the box. and its old its a honeywell model 45t. i tried to look it up but didnt find any thing.
Stevem
Posts: 4987
Joined: Fri Jan 24, 2014 3:01 pm
Location: 1/3rd the way out one of the arms of the Milkyway.

Re: Analog meters

Post by Stevem »

Thanks for the correction, I did not mean to misinform you!
When I die, I want to go like my Grandfather did, peacefully in his sleep.
Not screaming like the passengers in his car!

Cutting out a man's tongue does not mean he’s a liar, but it does show that you fear the truth he might speak about you!
tsutt
Posts: 264
Joined: Fri Jan 06, 2012 1:12 pm

Re: Analog meters

Post by tsutt »

No worries Steve. its all about brainstorming. i just wish i was able to contribute instead of always being a soak. lol

Todd
tele_player
Posts: 311
Joined: Sat Sep 29, 2007 3:27 am

Re: Analog meters

Post by tele_player »

tsutt wrote:Robert would you like to explain. its a one direction meter. its says FS - 10 rect. on the box. and its old its a honeywell model 45t. i tried to look it up but didnt find any thing.
There are several ways to make an AC meter without rectification. One method I found replaces the permanent magnets found in common D'Arsonval movements to electromagnets. When the current switches direction, all magnets change polarity, so needle moves in only one direction.

I googled 'ac galvanometer without rectifier', or something like that. The point is, using a bridge rectifier isn't the only way to make an AC ammeter.

However, now you mention the word rect. is on the box... I won't guess what it actually is. I'd experiment with feeding it a small DC current, and see what happens.

Robert
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