Hi,
Do you want to measure AC only,
Or a you interested in DC also.
If AC only, then a capacitor and two resistors do the job...without opamp.
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It is for an ADC input. If you want some precision I don't recommend to use VCC as ref.
In either way use half of the voltage, made with two identical resistors, to shift the voltage.
I recommend to use a modified difference amplifier opamp circuit.
Sensor via resistor to In+ of opamp.
Gnd via resistor to In- input. (For best performance add the same resistor as the sensor burden resistor in series)
Feedback from output via resistor to In-.
Now the modification: from In+, two identical resistors, each twice the value of the feedback resitor, one to GND the other to VREF of the ADC.
Klaus