Sensor systems

A sensor system, comprising:

• a plurality of sensors;
• and
• a signal arithmetic processor, comprising:
• a fiber optic cable including a fiber optic input and a fiber optic output;
• and
• a plurality of electro-optical transducers coupled to the fiber optic cable between the fiber optic input and the fiber optic output and having at least a first electrode and second electrode electrically connected to each sensor, wherein each electro-optical transducer is configured to modify an optical signal in the fiber optic cable based on a voltage from each sensor between the first electrode and the second electrode of each electro-optical transducer;
• and
• an interferometer coupled to the fiber optic cable and configured to sense a phase difference of a fiber optic signal between the fiber optic input and the fiber optic output.

A well tool, comprising:

• a tubular body;
• a plurality of sensors disposed on or within the tubular body;
• and
• a signal arithmetic processor disposed on or within the tubular body, the signal arithmetic processor comprising:
• a fiber optic cable including a fiber optic input and a fiber optic output;
• and
• a plurality of electro-optical transducers coupled to the fiber optic cable between the fiber optic input and output and having at least a first electrode and second electrode electrically connected to each sensor, wherein each electro-optical transducer is configured to modify an optical signal in the fiber optic cable based on a voltage from each sensor between the first electrode and the second electrode of each electro-optical transducer;
• and
• an interferometer coupled to the fiber optic cable and configured to sense a phase difference of a fiber optic signal between the fiber optic input and the fiber optic output.