Implement2

## Problem Statement

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* Figure out how many ohm resistor for voltmeter.
* Figure out the shunt resistor.
* How to parallel shunt resistor with voltmeter.
* Test the converted ammeter.

#### Lists, Source, Cost, Consumable

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* One voltmeter, one 3amp power supply, one 0.3 ohm, one 1 ohm resistor, two 10k resistors, one bread board, three alligator jumpers, two wires.
* These sources are from School supply.

## Designing the Implementation Process

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##### The initial design

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* Found this useful pdf file Conversion of voltmeter to ammeter
* Replaced 1M voltmeter's resistor with 1 ohm resistor.
* Tested the converted ammeter, the needle flip to another side of voltmeter.
* Because the voltmeter's resistor is too small, and the voltmeter is in series connection.

* Testing converted ammeter

* The current overloaded will cause meter broken.

##### Final Design

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* Keep following this pdf file Conversion of voltmeter to ammeter
* Replace 1k resistor with 10k resistor.
* Connect 0.3ohm power resistor in parallel with 2 poles of voltmeter on the back.

* Converted ammeter

* Connect another 10k resistor in series with converted ammeter.
* Connect the alligator jumpers with 3amp power supply, then turn on.

##### Work flow

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* solder 1k resistor off.

* solder off this resistor

* Solder 10k resistor on.

* 1k resistor

* Make 2 wires.

* cut a piece of wire

* pull 2 wires out

* get 2 wires

* Solder 2 wires with 0.3ohm power resistor.

* 2 wires connect to 0.3 power resistor

* 2 wires connect to 0.3 power resistor

* 2 wires connect to 0.3 power resistor

* 2 wires connect to 0.3 power resistor

* Connect 0.3ohm power resistor to voltmeter.

* convert voltmeter to ammeter

* convert voltmeter to ammeter

* Connect converted ammeter to the circuit.

* connect meter to the circuit.

* Here is my youtube video test converted ammeter
* Turn on the 3amp power supply.

##### Hardware/software function and safety

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* The resistor may get burn up and melt when test a couple times.
* Keep alert. When smell something burning check around.
* This resistor get burn and melt.

* resistor get burn up

##### Test and analysis procedures (hardware vs. software, acceptance vs. qualification)

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* Turn on the 3amp power supply. If the needle flip to the middle, the converted ammeter is working.

## Poster

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## Next Steps

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* Get a new voltmeter.
* Follow the Work Flow.