Recalibration Intervals Costed across a Five Year Service Fleet
Risk-adjusted calibration cycles combined with quarterly field verification reduce 5-year fleet costs by 23 percent while holding out-of-tolerance risk below 2.5 percent.
Environmental Degradation
Material Deterioration
Physical and chemical processes gradually compromise the integrity and performance of sensor components exposed to harsh surroundings. This environmental degradation appears as changes in material properties due to moisture and high temperatures. This decline in performance can lead to measurement drift and eventual failure of the sensor.
Chemical Corrosion
Chemical exposure in industrial or marine settings causes oxidation and wear on metal surfaces. Acidic vapors and salt spray break down protective coatings, attacking the underlying circuitry. This chemical action degrades the electrical contacts and increases contact resistance, which introduces measurement errors.
Thermal Aging
Elevated temperatures accelerate the breakdown of insulation and adhesive materials. High heat causes polymers to become brittle and crack, which allows moisture to penetrate the sensor assembly. This thermal stress alters the mechanical properties of the substrate, affecting the calibration of the instrument.
Performance Evaluation
Acceleration testing simulates years of operational wear in a short period using environmental chambers. These tests subject the sensors to high humidity and temperature cycling to identify potential failure modes. The results of these tests determine the expected lifespan of the instrument and establish the scheduling for routine maintenance and calibration.
Engineers analyze the post-test drift in sensor accuracy to set the operating limits and design appropriate protective housing for the target application environment.