Reference canceling systems, devices, and methods for determining tissue characteristics in vitro

A tissue analysis device for determining a characteristic of a tissue specimen, comprising:

• a sensing module, comprising:
• a first post disposed on a base, having a magnetic material disposed therein, and configured to have the tissue specimen attached thereto;
• a second post disposed on the base and configured to have the tissue specimen attached thereto;
• and
• a displacement sensor configured to output a displacement signal corresponding to a displacement of the first post;
• a reference module comprising a reference sensor configured to output a reference signal corresponding to a reference input;
• and
• a non-transitory machine readable storage medium storing logic, which when executed by a processor, causes the processor to perform operations, including:
• determining a displacement value based upon the displacement signal;
• determining a reference value based upon the reference signal;
• determining a reference-canceled displacement value based upon the displacement value and the reference value;
• and
• determining the characteristic based upon the reference-canceled displacement value.