Exactly 
This circuit is a pretty standard amplifier. The only change would be to try to change the J-Fet to a MosFet. And how it is drawn there is no button to zero the sensor.
I would try to operate Q1 (hopefully a MosFet) with the Arduino so no button is needed. It would require a MosFet with a low gate voltage requirement, maybe 2.5 or 3.0 V