Detecting crack orientation using patch antenna sensors

Irshad, Mohammad; Gowda, Vinay R.; Zhai, Huiqing; Huang, Haiying

doi:10.1088/0957-0233/23/1/015102

Cited by 51 publications

(37 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Traditional monitoring methods, such as metal foil strain gauges or fiber optic sensors, generally require cabled installation of the sensor and associated data acquisition system [2][3][4][5]. To eliminate the high cabling cost for large structures, wireless sensing devices have been developed for digitizing and transmitting sensor data [6,7].…”

Section: Introductionmentioning

confidence: 99%

Sensitivity Modeling of a Strain-Sensing Antenna

Chen¹,

Geng²,

Wan³

et al. 2017

PIER C

View full text Add to dashboard Cite

Abstract-A quarter-wavelength folded patch antenna is adopted as the passive wireless strain sensor for structural health monitoring (SHM) of bridges. It can be used for continuous surveillance and damage detection. According to theoretical formulations, strain simulation and experiments, it is found that a good linearity relationship can be achieved between normalized resonance frequency shift and the strain both in longitudinal and transverse directions. And the sensing sensitivity in longitudinal strain is better than that in transverse strain. Through conducting tensile experiments, we find that many factors can influence the strain sensitivity. To address this fundamental issue in antenna sensors for strain sensing, a new strain sensitivity experiment is proposed to take the influence of strain transfer ratio change under strain. The linear relationship of strain transfer ratio and deformation is obtained by sensitivity experiment. The corrected sensitivity in longitudinal and transverse strains is calculated based on the linearity. Furthermore, the Possion effect is taken into consideration to explain the opposite effects of experimental and simulated sensitivities in transverse strain.

show abstract

Section: Introductionmentioning

confidence: 99%

Sensitivity Modeling of a Strain-Sensing Antenna

Chen¹,

Geng²,

Wan³

et al. 2017

PIER C

View full text Add to dashboard Cite

show abstract

“…For reference, the data obtained with this interrogation technique was compared with the data obtained from a Vector Network Analyzer (VNA) (shown in Fig. 4(b)) [10]. In this case, the right most curve (blue) represents the resonant frequency of the antenna sensor when there is no crack in the ground plane and each subsequent curve represents a crack propagation of 2 mm.…”

Section: Experiments Results and Analysismentioning

confidence: 99%

“…To evaluate the feasibility of interrogation technique to monitor crack propagation wirelessly, thin slots (0.7 mm width) were machined in the ground plane of the patch antenna sensor to imitate the cracks [10]. The cracks were machined with a hand-held high speed pneumatic carver (Turbo carver TC550).…”

Section: Methodsmentioning

confidence: 99%

Wireless interrogation of antenna sensor to detect hidden cracks

Irshad

Huang

2012

WAMICON 2012 IEEE Wireless &Amp; Microwave Technology Conference

View full text Add to dashboard Cite

Recently, we have validated that microstrip antenna can detect sub-millimeter crack growth. The wireless interrogation of the antenna sensor under line-of-sight illumination of an interrogation antenna has also been demonstrated. In this paper, we present a wireless interrogation technique that is out of the line-of-sight of the interrogation antenna. This technique enables detecting and monitoring crack propagation between a lap joint or in any other case where a crack is hidden between two parts of a structure. Implementation of the sensor and the wireless interrogation unit using commercially available microwave components is presented in detail. The experimental results confirmed the capability of this technique to wirelessly interrogate the antenna sensor. In addition to crack propagation detection, this technique can also be used to monitor compressive forces between two faying surfaces of a lap joint structure.

show abstract

“…Mohammad and Huang (2010) demonstrated an antenna sensor that can detect not only the crack growth but also the crack opening. Later on, the same group also demonstrated that it is possible to use a rectangular patch antenna to detect the crack orientation (Mohammad et al 2012) and the propagation of a hidden crack (Erdmann and Huang 2011). Similar to the antenna strain sensors, these antenna crack sensors operate on the principle that a crack changes the electric dimensions of the antenna and thus can be detected from the resulting frequency shift.…”

Section: Antenna As Sensor Historical Reviewmentioning

confidence: 99%

Antenna Sensors in Passive Wireless Sensing Systems

Huang

2015

Handbook of Antenna Technologies

View full text Add to dashboard Cite

Antenna sensors have received considerable interests in recent years due to their passive wireless operation, simple configuration, compact size, multiplexing capability, and multimodality sensitivity. Based on the principle of antenna backscattering, an antenna sensor can be wirelessly interrogated at middle range distances without an onboard battery. Since the antenna serves the dual function of sensing and communicating, an antenna sensor can be implemented with minimum number of components. As narrowband resonators, antenna sensors can be easily multiplexed based on the principle of frequency division multiplexing. In addition, different types of antenna sensors that are sensitive to a variety of physical measurands have been demonstrated. Due to these unique features, antenna sensor technology could play a vital role in our drive toward ubiquitous sensing. This chapter provides a comprehensive review of this exciting technology with detailed descriptions on the operational principle and wireless interrogation of batteryless antenna sensors. Four application examples of using antenna sensors for moisture, dynamic strain, temperature, and crack sensing are discussed. Future research directions and open problems are suggested.

show abstract

Detecting crack orientation using patch antenna sensors

Cited by 51 publications

References 21 publications

Sensitivity Modeling of a Strain-Sensing Antenna

Sensitivity Modeling of a Strain-Sensing Antenna

Wireless interrogation of antenna sensor to detect hidden cracks

Antenna Sensors in Passive Wireless Sensing Systems

Contact Info

Product

Resources

About