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Study of Accelerated Stability Test Method for Quartz Flexible Accelerometer

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3 Author(s)
Dan Xu ; Sch. of Reliability & Syst. Eng., Beihang Univ., Beijing, China ; Yunxia Chen ; Rui Kang

The manufactured quartz flexible accelerometer has the serious problem of bad parametric repeatability. To solve this issue, this paper does systematic research about the accelerated stability test method to improve the long-term repeatability of the accelerometer from the product hierarchy. Proceeding from the analysis of the accelerometer's internal stress mechanism, it makes a positioning analysis of the causes of bad parametric repeatability and reveals what types of test stress make the accelerometer stable. After the main experimental factors are determined, the scope of these factors' level is obtained through enhancement tests. Based on previous research achievements, an accelerated stability testing scheme is worked out. By the accelerated stability exploratory test in the early period, this paper draws up the effective test method of accelerated stability and achieves the aim of making the accelerometer get into the steady state as soon as possible. This provides initial technical support for the enhancement of the accelerometer's long-term repeatability.

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Device and Materials Reliability, IEEE Transactions on  (Volume:11 ,  Issue: 1 )