Mathematical model of a micromechanical accelerometer with temperature influences, dynamic effects, and the thermoelastic stress-strain state taken into account

Barulina, M. A.; Dzhashitov, V. E.; Панкратов, В. М.; Kalinin, Mykhaylo; Papko, A. A.

doi:10.1134/s2075108710010086

Cited by 4 publications

(1 citation statement)

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“…The temperature compensation method builds different simulated models to determine the relationships between the temperature and the outputs of the inertial sensors. Errors caused by temperature variations can be compensated when inertial sensors are well modeled [12]. Hong [13] and Dzhashitov [14] studied the temperature characteristics of inertial sensors.…”

Section: Introductionmentioning

confidence: 99%

Precision Temperature Control for the Laser Gyro Inertial Navigation System in Long-Endurance Marine Navigation

Xiong

Wei

Gao

et al. 2021

Sensors

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In the Ring Laser Gyro Inertial Navigation System (RLG INS), the temperature characteristics of the accelerometer can directly influence the measurement results. In order to improve navigation accuracy in long-endurance marine navigation, the operating temperature of the accelerometer should be precisely controlled. Based on thermal studies on the accelerometer, temperature control precision should be better than 0.01 °C to achieve 1 × 10−5 m/s2 output accuracy of the accelerometer. However, this conclusion is obtained by approximate calculations and cannot be directly applied to different inertial navigation systems. In order to verify this thermal conclusion and broaden its application, the Back Propagation Neural Network (BP-NN) algorithm is adopted to validate the feasibility of temperature control in this paper. In addition, a multi-level temperature control system is also set up and carefully designed to support the validation and experiments under different conditions. Test results of the temperature control system prove that operating temperature variation can be reduced to 0.01 °C. Meanwhile, the standard deviation per hundred seconds of the accelerometer outputs, after temperature control, reaches 1 × 10−5 m/s2. Static altitude and navigation results were improved by 41.97% and 62.91%, respectively, with the precision temperature control system, which meets the long-endurance marine navigation requirements.

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Section: Introductionmentioning

confidence: 99%

Precision Temperature Control for the Laser Gyro Inertial Navigation System in Long-Endurance Marine Navigation

Xiong

Wei

Gao

et al. 2021

Sensors

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Temperature characteristics and error compensation for quartz flexible accelerometer

Gao

Zhang

Chen

et al. 2015

Int. J. Autom. Comput.

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Reduction of error due to the influence of temperature on the quartz flexible accelerometer without any heating device is a difficult task, and is also a tendency for research and application. In this paper, static and dynamic temperature compensation models are established in order to reduce the temperature influence on accelerometer measurement accuracy. Combined with the experiment data, the relationship between the accelerometer output accuracy, temperature and the magnitude of acceleration is analyzed. The data collected from the temperature experiment show that output value of the accelerometer varies with temperature. The method of uniaxial quadrature experiment is adopted and the accelerometer output value is gauged at temperature ranging from −20• C to 50• C. Having used the static and the dynamic temperature compensation models, the accelerometer temperature error compensation experiment is conducted and the compensated errors by the two models are analyzed. The result shows that the compensated value meets the technical requirements. Two technical indicators, the zero bias K0 and the scaling factor K1, which are used to measure the degree of accelerometers, are both improved and their fluctuation ranges are reduced.

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A PoF-Based Storage Lifetime Evaluation Method for High Precision Quartz Flexible Accelerometers

Pan

et al. 2018

2018 12th International Conference on Reliability, Maintainability, and Safety (ICRMS)

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Mathematical model of a micromechanical accelerometer with temperature influences, dynamic effects, and the thermoelastic stress-strain state taken into account

Cited by 4 publications

References 0 publications

Precision Temperature Control for the Laser Gyro Inertial Navigation System in Long-Endurance Marine Navigation

Precision Temperature Control for the Laser Gyro Inertial Navigation System in Long-Endurance Marine Navigation

Temperature characteristics and error compensation for quartz flexible accelerometer

A PoF-Based Storage Lifetime Evaluation Method for High Precision Quartz Flexible Accelerometers

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