How can i Amplify the voltage and how can i .. ?

[system]

I really need your help,
Actually, I'm working on a senior design project, which is building a Tractor. I will be working on the electrical connections + the micro controller ( Adruino Uno). My electrical connections will contain the following :
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• Battery 12Vdc. will be hooked up to the Adruino and transformer. I hooked it up with a transformer in order to amplify the voltage between 18 - 24 voltage to feed the load cell. I'm going to use 2 quantity of Load cell ( For your record). And Then from the load cell to a signal conditioner and then to the Microcontroller ( Adruino Uno).
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  ?hers is the type of the load cell that i'm going to use.
  ?http://www.interfaceforce.com/index.php?1200-Precision-Universal-Low-Profile-™-Load-Cell-Tension-and-Compression&mod=product&show=5
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  ?The question is: should i hook the load cell with signal conditioner first? if yes, HOW ??? despite i'm going to use TWO of Load cell?
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  ?here is the signal conditioner that found ???
  ?http://www.interfaceforce.com/index.php?1200-Precision-Universal-Low-Profile-™-Load-Cell-Tension-and-Compression&mod=product&show=5
  which is located in the instrument section the fifth file from the bottom of the list.

here is the model # (signal conditioner SGA AC/DC Powered)

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?anyone can help me with the connection ????????????
Note: I attached a block diagram of my connection

SGA-ACDC-Power-Signal-Conditioner-3.pdf (415 KB)

[system]

NO ONE CAN HELP ME >>>>>>>

[CrossRoads]

You have a basic problem to start - a transformer won't do anything to a DC signal - you need AC for the transformer to do anthing.

Also, you didn't attach any block diagram.

[KeithRB]

I certainly hope this is a mecahnical engineering project and not an electrical engineering one. Maybe you can find some help in the Electrical Engineering department.

[system]

See above comments. Try looking at a "boost converter circuit" to control the voltage. You'll probably need to find an IC and a working schematic yourself, though there should be many examples available. Its not a really simple project though.

[moorsb]

You might look at this based on a Hx711

Gravity: Digital Weight Sensor

[fungus]

You need one of these: adjustable dc boost for sale | eBay

Pick one with plenty of overhead in the amps.