= Solution
The sensor must survive the <stress> range and repeated loading without fracture, fatigue or excessive mechanical compliance. The <tensor> character of the <piezoelectric coefficient> makes <crystal orientation> important; a ceramic's <poling> quality and domain stability also matter. Compare linearity, <hysteresis>, reproducibility, aging and the usable frequency bandwidth, including <resonance> and dynamic response.
Electrical design is equally important: leakage resistance and readout input impedance determine low-frequency loss, and cable/input <capacitance> loads a voltage output. A <charge amplifier> may favour a different material ranking from a passive open-circuit voltage measurement. <temperature> changes can alter the coefficients, produce a pyroelectric signal in a polar material and depole a ferroelectric near its transition. Humidity, <electrode> bonding, electrical breakdown, manufacturability, cost and environmental constraints such as lead content also affect a practical choice. Calibration should separate applied <stress> from <temperature> drift and readout loading.
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