Design and Experimental Investigations of a Vibration Based Wireless Measurement System for Bridge Cable Tension Monitoring

2014 ◽  
Vol 17 (11) ◽  
pp. 1657-1668 ◽  
Author(s):  
Yan Yu ◽  
Chunwei Zhang ◽  
Xinqun Zhu ◽  
Won Hee Kang ◽  
Xingquan Mao ◽  
...  
Keyword(s):  
Monitoring System ◽  
Measurement System ◽  
Vibration Frequency ◽  
Identification Algorithm ◽  
Frequency Method ◽  
Cable Tension ◽  
Wireless Monitoring ◽  
Cable Stayed Bridge ◽  
Wireless Measurement ◽  
Bridge Cable

Cables are important components of a cable-stayed bridge, and the cable tension is a crucial factor in determining the overall condition assessment of a cable-stayed bridge structure. Based on the vibration frequency method, a wireless monitoring system for bridge cable tension force monitoring has been investigated and experimentally validated through laboratory and field tests in this paper. The vibration frequency-based method for cable tension measurement, the design method of the wireless measurement system with embedded identification algorithm, the test procedures, and relevant results are discussed, respectively. The developed wireless monitoring system is verified by a bridge model test in the laboratory and full-scale bridge tests in the field. Field experimental results show that the relative error between this wireless monitoring system and the reference wired system values is within 0.5%. Therefore, the developed wireless measurement system can provide an estimation of cable tension with sufficient accuracy. Moreover, the developed system is highly integrated and convenient in terms of installation and dismantling, and it has potential applicability prospects in emergency for the quick detection of cable tension.

Cable Tension Measurement of Cable Stayed Bridge Based on Frequency Method

2013 ◽  
Vol 405-408 ◽  
pp. 1587-1592
Author(s):  
Zhi Hua Sun ◽  
Ping Yang
Keyword(s):  
Vibration Frequency ◽  
Indirect Method ◽  
Flexural Rigidity ◽  
Engineering Practice ◽  
Frequency Method ◽  
Cable Tension ◽  
String Vibration ◽  
Vibration Theory ◽  
Cable Stayed Bridge ◽  
Measured Frequency

The frequency method is an indirect method of measuring cable tension, in which using the relation between vibration frequency and cable tension, and measured frequency. It has been found wide use because of its simplicity, practicable use, higher accuracy and the instrument is easy to carry. The principle of the frequency method is based on the vibration theory of string or beam. The flexural rigidity of cable is ignored in string vibration theory, but included in beam vibration theory; therefore the latter is more approaching the engineering practice.

Automated wireless monitoring system for cable tension using smart sensors

2013 ◽  
Author(s):  
Sung-Han Sim ◽  
Jian Li ◽  
Hongki Jo ◽  
Jongwoong Park ◽  
Soojin Cho ◽  
...  
Keyword(s):  
Monitoring System ◽  
Smart Sensors ◽  
Cable Tension ◽  
Wireless Monitoring

scholarly journals The Analysis of the Urea Biosensors Using Different Sensing Matrices via Wireless Measurement System & Microfluidic Measurement System

Sensors ◽  
2019 ◽  
Vol 19 (13) ◽  
pp. 3004 ◽  
Author(s):  
Jung-Chuan Chou ◽  
Cian-Yi Wu ◽  
Si-Hong Lin ◽  
Po-Yu Kuo ◽  
Chih-Hsien Lai ◽  
...  
Keyword(s):  
Measurement System ◽  
Magnetic Beads ◽  
Remote Detection ◽  
Average Sensitivity ◽  
Flow Rates ◽  
Wireless Monitoring ◽  
Vortex Induced Vibrations ◽  
Measurement Results ◽  
Wireless Measurement ◽  
Better Than

Two types of urea biosensors were integrated with a wireless measurement system and microfluidic measurement system. The two biosensors used were (i) a magnetic beads (MBs)-urease/graphene oxide (GO)/titanium dioxide (TiO2)-based biosensor and (ii) an MBs-urease/GO/ nickel oxide (NiO)-based biosensor, respectively. The wireless measurement system work exhibited the feasibility for the remote detection of urea, but it will require refinement and modification to improve stability and precision. The microchannel fluidic system showed the measurement reliability. The sensing properties of urea biosensors at different flow rates were investigated. From the measurement results, the decay of average sensitivity may be attributed to the induced vortex-induced vibrations (VIV) at the high flow rate. In the aspect of wireless monitoring, the average sensitivity of the urea biosensor based on MBs-urease/GO/NiO was 4.780 mV/(mg/dl) and with the linearity of 0.938. In the aspect of measurement under dynamic conditions, the average sensitivity of the urea biosensor based on MBs-urease/GO/NiO were 5.582 mV/(mg/dl) and with the linearity of 0.959. Both measurements performed NiO was better than TiO2 according to the comparisons.

Field Measurement of Cable Tension Using Energy Method

2011 ◽  
Vol 230-232 ◽  
pp. 708-712
Author(s):  
Qi Lin Zhang ◽  
Da Lin Li ◽  
Ru Jin Ma
Keyword(s):  
Vibration Frequency ◽  
Energy Method ◽  
Vibration Mode ◽  
Tensile Force ◽  
Frequency Method ◽  
Cable Tension ◽  
Cable Structures ◽  
Simple Boundary ◽  
The Common ◽  
Energy Conservation Principle

For existing cable structures, vibration frequency method (VFM) seems to be the common way to determine the tensile force of the cables. However, the applicability of this method is limited by the specific conditions of cables. Only well tensioned slender cables with simple boundary conditions can be measured through VFM directly without causing much error. In this paper, the vibration mode of the cable is measured and then cable tension is calculated via energy conservation principle.

The Design of Monitoring System for Bridge Cable Tension Based on ARM

2014 ◽  
Vol 654 ◽  
pp. 270-273
Author(s):  
Chun Wei Du ◽  
Xue Li Chen ◽  
Chun Mei Xia
Keyword(s):  
Monitoring System ◽  
Data Storage ◽  
Simple Structure ◽  
Historical Data ◽  
Sensor Nodes ◽  
Wireless Sensor Nodes ◽  
Cable Tension ◽  
Gateway Node ◽  
Reliable Performance ◽  
Bridge Cable

The paper illustrates the monitoring system of cable tension of bridge based on ARM. The system, consisting of wireless sensor nodes, the gateway node and ARM-based system, can implement many functions, such as real-time monitoring, data storage and display, historical data query and alarm of exceeding standard. In addition, such a system, verifying simple structure, low power consumption and reliable performance, has broad prospects in the filed of monitoring system of cable stress of bridge.

Cable Tension Control of Cable-Stayed Bridge Using Fuzzy Satisfaction Method and Genetic Algorithm

2001 ◽  
Vol 84 (3) ◽  
pp. 39-46
Author(s):  
Hitoshi Furuta ◽  
Masakatsu Kaneyoshi ◽  
Hiroshi Tanaka ◽  
Eiichi Watanabe
Keyword(s):  
Genetic Algorithm ◽  
Tension Control ◽  
Cable Tension ◽  
Cable Stayed Bridge

Design and Implementation of Wireless Voltage Monitoring System Based on Zigbee

2017 ◽  
Vol 12 (3) ◽  
pp. 83-96 ◽  
Author(s):  
Luo Xiaohui
Keyword(s):  
Monitoring System ◽  
Single Phase ◽  
Low Cost ◽  
Moving Average ◽  
Voltage Sensor ◽  
Wireless Transmission ◽  
Phase Voltage ◽  
Medium Voltage ◽  
Wireless Monitoring ◽  
Three Phase

This paper proposed a low cost wireless monitoring system based on ZigBee wireless transmission, and designed a new floating voltage sensor which is suitable for the monitoring of medium voltage and high voltage(MV/HV) public equipment. The system used TI-CC2530 as the controller, proposed a new moving average voltage sensing(MAVS) algorithm by reasonable assumptions, and adopted algorithms to perform the theoretical analysis for the single phase and three-phase voltage. At last, the author carried out a practical experiment on the wireless floating voltage sensor under the voltage up to 30kV, the experimental results showed that the proposed low cost wireless sensor can achieve a good voltage monitoring function, and the error is less than 3%.

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