scholarly journals MEMS Gyroscope Temperature Compensation Based on Drive Mode Vibration Characteristic Control

Micromachines ◽  
2019 ◽  
Vol 10 (4) ◽  
pp. 248 ◽  
Author(s):  
Min Cui ◽  
Yong Huang ◽  
Wei Wang ◽  
Huiliang Cao
Keyword(s):  
Temperature Compensation ◽  
Scale Factor ◽  
Compensation Method ◽  
Vibration Characteristic ◽  
Drive Mode ◽  
Variable Resistor ◽  
Mems Gyroscope ◽  
Bias Drift ◽  
Temperature Variable ◽  
Mode Vibration

In this paper, a novel temperature compensation method for a dual-mass MEMS gyroscope is proposed based on drive mode vibration characteristic compensation using a temperature variable resistor. Firstly, the drive and sense modes of the gyroscope re analyzed and investigated, and it is found that the scale factor is proportional to the drive mode amplitude controlling reference voltage. Then, the scale factor temperature compensation method is proposed, and a temperature variable resistor is utilized to compensate the drive amplitude working point and make it change with temperature. In addition, the temperature compensation circuit is designed and simulated. After that, the temperature bias drift is compensated in a modular output. The experimental results show that scale factor and bias variation during the temperature range from −40 °C to 60 °C decrease from 3.680% to 1.577% and 3.880% to 1.913%, respectively. In addition, the bias value improves from 103.395 °/s to 22.478 °/s (optimized 78.26%). The bias stability and angular rate walking parameter are also optimized to 45.97% and 16.08%, respectively, which verify the method proposed in this paper.

scholarly journals A Novel Temperature Compensation Method for a MEMS Gyroscope Oriented on a Periphery Circuit

10.5772/56881 ◽  
2013 ◽  
Vol 10 (9) ◽  
pp. 327 ◽  
Author(s):  
Huiliang Cao ◽  
Hongsheng Li ◽  
Xia Sheng ◽  
Shourong Wang ◽  
Bo Yang ◽  
...  
Keyword(s):  
Temperature Compensation ◽  
Compensation Method ◽  
Mems Gyroscope

A digital output MEMS DRG on-chip temperature compensation method based on virtual sensor

2020 ◽  
Vol 34 (36) ◽  
pp. 2050422
Author(s):  
Yihang Wang ◽  
Xiaowei Liu ◽  
Yufeng Zhang ◽  
Qiang Fu
Keyword(s):  
Temperature Sensor ◽  
Temperature Compensation ◽  
Scale Factor ◽  
Compensation Method ◽  
Digital Output ◽  
Virtual Sensor ◽  
Chip Temperature ◽  
Change Of Scale ◽  
On Chip ◽  
Virtual Temperature

A digital output Disk Resonator Gyroscope (DRG) on-chip temperature compensation method based on virtual sensor is proposed in this paper. DRG is a combination of solid wave gyroscope and MEMS gyroscope, it has become the research emphasis of high precision gyroscope. In practical application, the ambient temperature changing will cause several problems such as the change of scale factor, zero drift and so on. To increase the environmental adaptability of DRG, the DRG temperature characteristics are analyzed, the temperature compensation models of scale factor and zero output are established in this paper. The concept of virtual temperature sensor is introduced to solve the lead or lag problem caused by integrated temperature sensor. Based on the trend of AC drive amplitude changing with temperature, the temperature measurement is converted into AC voltage amplitude measurement. The virtual temperature sensor is used to complete the on-chip temperature compensation of the DRG angular velocity output, the second-order compensation realizes the scale factor change of 40 ppm/[Formula: see text]C and zero output change of 27[Formula: see text]/h over the full temperature range varying from [Formula: see text] to 60[Formula: see text]C according to the simulation result.

Investigation on Temperature Compensation of Fiber Bragg Grating Sensors for Hull Monitoring

2018 ◽  
Author(s):  
Ruiqi Ma ◽  
Guoqing Feng ◽  
Huilong Ren ◽  
Peng Fu ◽  
Shuang Wu ◽  
...  
Keyword(s):  
Thermal Expansion ◽  
Fiber Bragg Grating ◽  
Temperature Compensation ◽  
Compensation Method ◽  
Bragg Grating ◽  
Theoretical Derivation ◽  
Temperature Changes ◽  
Hull Girder ◽  
Fbg Sensor ◽  
Fbg Sensors

Hull monitoring system with Fiber Bragg Grating (FBG) sensors increasingly receives people’s attentions. However, for the ship hull monitoring, the deformation of hull girder changes a lot as is subjected to a huge temperature variation. Therefore, the compensation method with only FBG temperature self-correction is not suitable for the hull monitoring sensors because no material thermal expansion effects are reasonably included. In this paper, the new compensation method of hull monitoring FBG sensor based on the sensor theory with both FBG temperature self-correction and steel thermal expansion effects correction is studied. The coupled compensation method suitable for hull monitoring sensor is obtained by theoretical derivation. As the comparison, the coupled compensation experiment was carried out. The results show that the relative error under the temperature compensation method is large in the case of drastic strain and temperature changes, and the correction results of the tested method will be closer to the true level.

scholarly journals Temperature Compensation Method for Digital Cameras in 2D and 3D Measurement Applications

Sensors ◽  
2018 ◽  
Vol 18 (11) ◽  
pp. 3685 ◽  
Author(s):  
Marcin Adamczyk ◽  
Paweł Liberadzki ◽  
Robert Sitnik
Keyword(s):  
Temperature Compensation ◽  
Three Dimensional ◽  
Compensation Method ◽  
Effect Of Temperature ◽  
Calibration Model ◽  
Digital Cameras ◽  
Compensation Model ◽  
Camera Design ◽  
Compensation Approach ◽  
2D And 3D

This paper presents the results of several studies concerning the effect of temperature on digital cameras. Experiments were performed using three different camera models. The presented results conclusively demonstrate that the typical camera design does not adequately take into account the effect of temperature variation on the device’s performance. In this regard, a modified camera design is proposed that exhibits a highly predictable behavior under varying ambient temperature and facilitates thermal compensation. A novel temperature compensation method is also proposed. This compensation model can be applied in almost every existing camera application, as it is compatible with every camera calibration model. A two-dimensional (2D) and three-dimensional (3D) application of the proposed compensation model is also described. The results of the application of the proposed compensation approach are presented herein.

scholarly journals Towards a biomimetic gyroscope inspired by the fly's haltere using microelectromechanical systems technology

2014 ◽  
Vol 11 (99) ◽  
pp. 20140573 ◽  
Author(s):  
H. Droogendijk ◽  
R. A. Brookhuis ◽  
M. J. de Boer ◽  
R. G. P. Sanders ◽  
G. J. M. Krijnen
Keyword(s):  
Microelectromechanical Systems ◽  
Damping Ratio ◽  
Fast Response ◽  
Gyroscopic System ◽  
Drive Mode ◽  
Mems Gyroscope ◽  
Coriolis Forces ◽  
Mems Technology ◽  
Large Measurement ◽  
Theoretical Performance

Flies use so-called halteres to sense body rotation based on Coriolis forces for supporting equilibrium reflexes. Inspired by these halteres, a biomimetic gimbal-suspended gyroscope has been developed using microelectromechanical systems (MEMS) technology. Design rules for this type of gyroscope are derived, in which the haltere-inspired MEMS gyroscope is geared towards a large measurement bandwidth and a fast response, rather than towards a high responsivity. Measurements for the biomimetic gyroscope indicate a (drive mode) resonance frequency of about 550 Hz and a damping ratio of 0.9. Further, the theoretical performance of the fly's gyroscopic system and the developed MEMS haltere-based gyroscope is assessed and the potential of this MEMS gyroscope is discussed.

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