Highly accelerated stress test method of angular displacement sensor
A technology of angular displacement sensor and high accelerated stress, which is applied in the reliability test of devices and the field of reliability test of angular displacement sensor, and can solve the problems of short holding time, insufficient exposure of hidden dangers of angular displacement sensor failure, and low temperature change rate. , to achieve the effect of shortening the time
Active Publication Date: 2015-06-10
FLIGHT AUTOMATIC CONTROL RES INST
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Abstract
The invention relates to the reliability test technology of an angular displacement sensor, in particular to a highly accelerated stress test method of an angular displacement sensor. The method is characterized in that high-temperature working limit and low-temperature working limit are determined through high-temperature and low-temperature stepping assessment, vibration working limit is determined through vibration stepping assessment, and the high-temperature working limit, the low-temperature working limit and the vibration working limit provide reliability assessment to the design parameters of the angular displacement sensor; the temperature lower limit in the test is lowered from -45 DEG C to -90 DEG C, the temperature upper limit is increased from 70 DEG C to 135 DEG C, temperature change rate is increased from 10 DEG C/min to 40 DEG C/min, vibration load is changed from single axis to three-axial-direction six-freedom-degree excitation, reliability assessment requirements of the angular displacement sensor are increased, time of the reliability test can be reduced correspondingly, and a new approach is provided to the reliability test method of highly accelerated stress.
Application Domain
Instruments
Technology Topic
PhysicsLower limit +5
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