Analiza mikropaskowego czujnika naprężeń z prostokątnym promiennikiem

Łopato, Przemysław; Herbko, Michał

doi:10.26628/ps.v89i9.810

Cited by 1 publication

(5 citation statements)

References 9 publications

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“…The measured data can be used for safety, sustainability and fatigue evaluation . The strain level can be measured using strain gauges, capacitive, piezoresistive, piezoelectric, magnetic, and fiber optic sensors as well as microstrip structures …”

Section: Introductionmentioning

confidence: 99%

“…In the last decade, the idea of using microstrip antennas for stress evaluation has appeared, and works on improving this kind of transducer is carried out in many research centers . Strain investigation using microstrip sensor relies on reflection coefficient S 11 monitoring.…”

Section: Introductionmentioning

confidence: 99%

“…In case of wired sensors, microstrip line and coaxial probe to feed patch were used. Moreover, wireless microstrip transducers were also examined.…”

Section: Introductionmentioning

confidence: 99%

“…So far, microstrip sensors with various shapes of resonators (patches) have been evaluated . The most frequently tested microstrip transducer is the sensor based on a rectangular patch . Moreover, the circular microstrip sensor and other patch geometries were evaluated for this application.…”

Section: Introductionmentioning

confidence: 99%

“…In contrast to measurements using one resonant frequency, where it is necessary to know the direction of stress. In addition, the sensitivity of microstrip transducers designed for different resonant frequencies was evaluated . One conclusion that may be drawn from these articles is: the higher the resonance frequency of the sensor, the bigger the resonance frequency shifts occur due to the deformation.…”

Section: Introductionmentioning

confidence: 99%

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Double patch sensor for identification of stress level and direction

Herbko

Łopato

2019

Int J RF Microw Comput Aided Eng

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In this article microstrip sensor for evaluation of stress direction and value was proposed. Developed sensor consists of two patches (resonators) of various sizes. Both patches have different operating frequencies and different angles between resonator axis and the direction of mechanical excitation—resonators are arranged along orthogonal axes. Proposed transducer enables determination of the direction and value of stress in the range from 0 to 90°. Patches are fed by T‐junction power divider, so they use one excitation port. The resonators were developed for operating frequencies of 2.65 and 2.75 GHz, so a small difference (100 MHz) compared to the sensor with one resonator was obtained between the two resonant frequencies. It enables better use of measuring hardware capabilities, which leads to faster and more accurate measurements. The proposed sensors were evaluated using numerical analysis and measurements. Moreover, the algorithm for identification of direction and stress level was proposed. It uses artificial neural network approximator. The algorithm was positively verified.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…In case of wired sensors, microstrip line and coaxial probe to feed patch were used. Moreover, wireless microstrip transducers were also examined.…”

Section: Introductionmentioning

confidence: 99%