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                           AeroElectric-List Digest Archive
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                     Total Messages Posted Mon 03/27/23: 2
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Today's Message Index:
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     1. 11:26 AM - Re: Re: 100 Amp Inductive Current Sensor 5 volt input Ring Mount ne  (Robert L. Nuckolls, III)
     2. 11:36 AM - Re: Re: 100 Amp Inductive Current Sensor 5 volt  (Robert L. Nuckolls, III)
 
 
 
________________________________  Message 1  _____________________________________


Time: 11:26:11 AM PST US
From: "Robert L. Nuckolls, III" <nuckolls.bob@aeroelectric.com>
Subject: Re: AeroElectric-List: Re: 100 Amp Inductive Current Sensor 5   volt input
Ring Mount ne

At 01:22 PM 3/26/2023, you wrote:
>
>I purchased a ACS712 Hall effect sensor from eBay for $2 to play 
>with on the work bench.  I did not install it in an airplane.
>The manufacturer intended that the current carrying wire be cut and 
>connected to the green terminal strip.
>If installed in an aircraft, it is not desired to cut a heavy wire 
>which would introduce two more failure points.
>So I just laid the uncut wire across the IC and tested it like 
>that.  It worked fine.
>If one were to actually install this sensor in an aircraft, the wire 
>being monitored could be glued to the IC using E6000.
>Three wires need to be connected, +5VDC, ground, and output.
>Your ammeter display should have the ability to be calibrated.

   nice find . . .


   Bob . . .

                    ////
                   (o o)
    ===========o00o=(_)=o00o========
    < Go ahead, make my day . . .   >
    < show me where I'm wrong.      >
    ================================

    In the interest of creative evolution
    of the-best-we-know-how-to-do based
    on physics and good practice.

________________________________  Message 2  _____________________________________


Time: 11:36:07 AM PST US
From: "Robert L. Nuckolls, III" <nuckolls.bob@aeroelectric.com>
Subject: Re: AeroElectric-List: Re: 100 Amp Inductive Current Sensor 5   volt

At 10:09 AM 3/26/2023, you wrote:
>Much less expensive source for what I believe is 
>the same sensor.=C2  I have this one in my plane. =C2
>
><https://amploc.com/products/key100-open-loop-hall-effect-sensor>https://am
ploc.com/products/key100-open-loop-hall-effect-sensor

   Been a fan of amploc sensors for decades. Used them
   on several projects at Beech and the price is sure
   right!

   The do take a small 'set' such that the zero
   current offset changes a tiny bit when used
   in a bi-directional measurement situation.
   But that's a 'battery' ammeter which is a tiny
   step above useless. For uni-directional
   current measurement, they're pretty functional.

   Here's one left over from a Beechjet
   trim system study.

https://tinyurl.com/2hjs489d


   I used to brass-board a gain/offset
   circuit onto a piece of ecb so that
   it would directly interface with an
   input to my data acquisition system.

https://tinyurl.com/3xnzrz8j


   Bob . . .

                    ////
                   (o o)
    ===========o00o=(_)=o00o=======
=
    < Go ahead, make my day . . .   >
    < show me where I'm wrong.      >
    ========================
========

    In the interest of creative evolution
    of the-best-we-know-how-to-do based
    on physics and good practice.

 

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