Acta Photonica Sinica, Volume. 53, Issue 2, 0212005(2024)
Wood Inertial Measurement Unit Based on Laser-induced Graphene
Figures & Tables(11)
Fig. 5. Unbalanced oscillator and commercial units rotate around Z-axis to collect acceleration signals
Fig. 6. The unbalance oscillator unit rotates around the X-axis（α=2.94 rad/s2）output voltage signal
Table 1. Material attribute
View tableView in ArticleTable 1. Material attribute
Material Density /（kg·m-3） Elastic modulus/MPa Poisson's ratio Yield strength/MPa Pine 550 4 211 0.42 41 PLA 1 240 3 000 0.35 60 Cr13 7 850 20 000 0.3 345
Table 2. The structural dimensions of IMU
View tableView in ArticleTable 2. The structural dimensions of IMU
Parameter Value/mm Illustrate l 100 h 5 The thickness of the frame l1 30 b 3 h1 1 The thickness of the beam Φ 20 h2 1 Thickness of Inertial Body Connection Platform Φ1 400
Table 3. Performance comparison between commercial low precision IMUs and proposed IMU
View tableView in ArticleTable 3. Performance comparison between commercial low precision IMUs and proposed IMU
Model Angular acceleration range/（rad·s-2） Sensitivity/（mV·s2·rad-1） Acceleration range（g） Sensitivity/（mV·g-1） Price Degradable Ref. Piezoresistive triaxial accelerometer ±8 ±3 X：0.113
Y：0.108
Z：1.010
- No ［ 8 ］MEMS-Based Piezoresistive Accelerometer for Head Injuries Monitoring -- ±500 0.22 - No ［ 11 ］Monolithic triaxial piezoresistive shock accelerometer -- 50 000~100 000 X：2.17
Y：2.25
Z：2.64
（×10-3）
- No ［ 12 ］Bulk SiC MEMS accelerometer -- ±1 0.21 - No ［ 13 ］QMI8658 0.028 0.312 ±16 $2.57 No ［ 30 ］QMA6100P -- ±2 62.4 $1.71 No ［ 31 ］LSM6DSOTR ±4.36 0.76 ±2 0.061 $7.47 No ［ 32 ］Our IMU X，Z：±8
Y：±23
X：0.285
Y：0.305
Z：0.765
X，Z：±10
Y：-1~3
X：0.006
Y：8.695
×10-4
Z：0.200
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Chen LI, Hao LI, Yanwei YANG. Wood Inertial Measurement Unit Based on Laser-induced Graphene[J]. Acta Photonica Sinica, 2024, 53(2): 0212005
Paper Information
Category: Instrumentation, Measurement and Metrology
Received: Jul. 21, 2023
Accepted: Aug. 29, 2023
Published Online: Mar. 28, 2024
The Author Email: LI Chen (lichen@sust.edu.cn)
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