Comparability of Archived Aging-Stage and Retest Records from Miniature Temperature-Pressure Sensors: Rank, Concordance, and Response Shape.

Archived sensor records often lack synchronized reference pressure, making it necessary to distinguish retained device ordering from numerical agreement and response-shape reproduction. Aging-stage and first-retest records from 22 miniature temperature-pressure sensors were evaluated using marginal features, Spearman rank correlation, Lin's concordance correlation coefficient (CCC), device-level bootstrap intervals, and 56 equally weighted common-temperature bins. A disjoint 16-device same-mode cohort tested recurrence of marginal-feature ordering. The analysis demonstrates the following. The fifth percentile retained device order (0.886) and identity-line agreement (CCC 0.968); standard deviation retained order (0.648) without agreement (CCC 0.032), which the decomposition attributes to systematic displacement (accuracy factor 0.077), whereas the 95th percentile (CCC 0.379) is precision-limited (Pearson r 0.510). Common-temperature alignment reversed the raw-median difference for every device. Relative temperature-slope retention was negligible (rank correlation 0.013), and complete centered-profile correlation was heterogeneous (median 0.356). Lower-tail, upper-tail, and dispersion ordering recurred in the disjoint cohort. The article proposes a multilevel retention signature, an ordinal pattern read across evidence levels, together with candidate retest endpoints. Calibration accuracy, sensor life, sensitivity degradation, retention of metrological characteristics, and causal aging lie beyond this evidence.