You need a low value resistor for a shunt or current sense resistor.
Maybe you don't want to wait for an off the shelf resistor to arrive
-OR-
An off the shelf resistor isn't available in the value you need
-OR-
You want to make your own just for the FUN of it.
In any case, I am going to show you how you can create your own low value resistors using wire you have hanging around the shop.
The process is amazingly simple.
WIRE TABLE LINK:
www.powerstrea...
{*** IMPORTANT NOTE***} -- MEASUREMENT ACCURACY --
Speaking of the accuracy of my measurement, I made a boo-boo in the final value for the measurement uncertainty. It's what I get for doing it in my head. :-/
The total measurment uncertainty for the VOLTAGE measurement is +/-0.350%.
The total measurment uncertainty for the CURRENT measurement is +/-0.977%
This gives us a total measurment uncertainty of +/-1.327% for the determination of the value of the newly created shunt.
This means our shunt's actual value will be somewhere between 17.8 and 18.2 mOhms.
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00:05 Introduction
01:09 The Basis & What are we going to be doing
03:11 Establishing the Parameters
03:44 Wire Table Work
05:18 Calculating the Needed Wire Length
Test and Adjustment
08:45 Test and Adjustment Preparation
12:53 Test Setup
13:58 TEST #1
14:31 Test Results and Adjustment
15:03 TEST #2 - After Adjustment
15:11 Test Results
15:29 Packaging it Up
19:11 Final Test & Adjustment
20:12 Test Results
20:17 Final Adjustment
20:39 Final Test Results
21:03 Concluding Comments & Toodle-Oots
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Негізгі бет Create your Own SHUNT or Current Sense Resistors (019h )
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