Hi KenSen,
Thank you for posting on the National Instruments forum. Here is a Developer Zone document that will give you some options for measuring strain. You can click on each module, and within the description paragraph for each device there's a link to the product page. On that product page, there's a customize link that will help you build the system you need to read strain. It also goes into detail how strain guages work.
Strain Measurement with a Strain Gauge
Thank You,
Nick F.
Applications Engineer