I want to us this sensor(107LN type) as in the following signal chain with differential-input DAQ board and a STP CAT6 cable as below:
Above the GND of the power supply is local/near to the DAQ. Someone told me this will be problem for differential inputs.
So I created a new ground on the sensor X (GND) from B (GND) on the sensor. Now along the transmission to the DAQ, the ground and the signal is twisted together. See below diagram:
Is the second diagram better for common mode noise rejection? Why?