An Ultra-low Frequency Modal Testing Suspension System for High Precision Air Pressure Control

In this paper, as a resolution for air pressure control challenges in ultra-low frequency modal testing suspension systems, an incremental PID control algorithm with a dead band is applied to achieve high-precision pressure control. The authors also develop a set of independent hardware and software...

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Bibliographic Details
Published in:Sensors & transducers 2014-05, Vol.170 (5), p.208-208
Main Authors: Yuan, Qiaoling, Sun, Jianhui, Shan, Xiaohang, Ye, Biqing
Format: Article
Language:English
Subjects:
Communication systems
Computer programs
Construction
Control systems
Controllers
Crystal oscillators
Data buses
Ethernet
Expected values
Experiments
Interprocessor communication
Microprocessors
Software
Suspension systems
Transducers
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Summary:In this paper, as a resolution for air pressure control challenges in ultra-low frequency modal testing suspension systems, an incremental PID control algorithm with a dead band is applied to achieve high-precision pressure control. The authors also develop a set of independent hardware and software systems for high-precision pressure control solutions. Taking control system versatility, scalability, reliability, and other aspects into considerations, a two-level communication employing Ethernet and CAN bus, is adopted to complete such tasks as the data exchange between the IPC, the main board and the control board, and the pressure control. Furthermore, the authors build a single set of ultra-low frequency modal testing suspension system and complete the pressure control experiments which achieve the desired results and confirm that the high-precision pressure control subsystem is reasonable and reliable.
ISSN:2306-8515
1726-5479