A non-invasive capacitive sensor strip for aerodynamic pressure measurement

Zagnoni, Michele; Golfarelli, A.; Callegari, Sergio; Talamelli, Alessandro; Bonora, V.; Sangiorgi, E.; Tartagni, Marco

doi:10.1016/j.sna.2005.03.049

Cited by 42 publications

(37 citation statements)

References 9 publications

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“…In practice, however, one should make the sensor system as cheap, robust and easy to install as possible. To this aim, sensor strips based on PCB technologies are being prototyped and tested, as reported in [8], and as shown in Fig. 3.…”

Section: Sensing Technologiesmentioning

confidence: 99%

“…The fact that each strip hosts many units is noteworthy, as it lowers manufacturing costs and eases installation, favoring the deployment of very redundant setups. Furthermore, it enables a strip to directly represent a "regions of interest" so that from the vector C j of its capacitance readings one can immediately get the corresponding vector P j , once the characteristics of the elementary transducers is determined/assigned [8,13]. The resolution is expected to be about 5-10 Pa over a range spanning over 1 kPa (7-8 bit of effective resolution), which is sufficient for air speed and angle of attack detection, as shown in the following sections.…”

Section: Sensing Technologiesmentioning

confidence: 99%

“…The collection of data thus needs only electric means and can require as little as a couple of wires shared among all sensors if serial communication is adopted. The interested reader is invited to check [8] and [14] which offer an in-depth view of the sensing strips and interfacing.…”

Section: Sensing Technologiesmentioning

confidence: 99%

“…8 In other terms F -was asked to incorporate the non-linear characteristics of the sensor, as pictured in Fig. 10.…”

Section: Tests With Strip Sensorsmentioning

confidence: 99%

“…• Section 2 summarizes the development of a suitable sensing technology, following the approach presented in [8] which focuses on the application of Printed Circuit Board (PCB) technologies to the implementation of pressure sensors.…”

Section: Introductionmentioning

confidence: 99%

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Experiments on aircraft flight parameter detection by on-skin sensors

Callegari

Zagnoni²,

Golfarelli

et al. 2006

Sensors and Actuators A: Physical

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Air speed and flight attitude angles are fundamental parameters for manual of automatic control of flying bodies. Conventional measurement methods rely on probes (e.g. Pitot tubes or vanes) having a one-to-one correspondence with the physical quantities of interest and requiring specific placements. Here, a novel measurement approach is proposed, relying on indirect measurement and on a plurality of pressure readings made by thin capacitive sensors directly placed on the aircraft skin. A redundant number of probes relaxes the accuracy requirements posed on the individual units and helps achieving fault detection or fault tolerance. A strategy for efficiently processing/combining sensor data is herein presented together with an error propagation analysis, and experimental data.

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Section: Sensing Technologiesmentioning

confidence: 99%

Section: Sensing Technologiesmentioning

confidence: 99%

Section: Sensing Technologiesmentioning

confidence: 99%

“…8 In other terms F -was asked to incorporate the non-linear characteristics of the sensor, as pictured in Fig. 10.…”

Section: Tests With Strip Sensorsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Experiments on aircraft flight parameter detection by on-skin sensors

Callegari

Zagnoni²,

Golfarelli

et al. 2006

Sensors and Actuators A: Physical

Self Cite

View full text Add to dashboard Cite

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Recent Progress on Flexible Capacitive Pressure Sensors: From Design and Materials to Applications

Mishra

El‐Atab

Hussain

et al. 2021

Adv Materials Technologies

202

117

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For decades, the revolution in design and fabrication methodology of flexible capacitive pressure sensors using various inorganic/organic materials has significantly enhanced the field of flexible and wearable electronics with a wide range of applications in aerospace, automobiles, marine environment, robotics, healthcare, and consumer/portable electronics. Mathematical modelling, finite element simulations, and unique fabrication strategies are utilized to fabricate diverse shapes of diaphragms, shells, and cantilevers which function in normal, touch, or double touch modes, operation principles inspired from microelectromechanical systems (MEMS) based capacitive pressure sensing techniques. The capacitive pressure sensing technique detects changes in capacitance due to the deformation/deflection of a pressure sensitive mechanical element that alters the separation gap of the capacitor. Due to advancement in state‐of‐the‐art fabrication technologies, the performance and properties of capacitive pressure sensors are enhanced. In this review paper, recent progress in flexible capacitive pressure sensing techniques in terms of design, materials, and fabrication strategies is reported. The mechanics and fabrication steps of paper‐based low‐cost MEMS/flexible devices are also broadly reported. Lastly, the applications of flexible capacitive pressure sensors, challenges, and future perspectives are discussed.

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Applicability of Field Programmable Analog Arrays to Capacitive Sensing in the Sub-pF Range

Callegari

Merendino

Golfarelli

et al. 2006

Analog Integr Circ Sig Process

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FPAAs have recently been introduced to reduce analog design costs and bridge the gap between ASICs and circuits made of standard-parts. Here, their applicability to capacitive sensing is investigated. Switched-mode FPAAs were not originally introduced for the readout of elementary sensors or their desensitization from parasitics. Nonetheless, we show that specific techniques can make them up to the task of reading capacitance variations in the tens fF range. We also show that FPAA sensor interfaces can achieve automatic, trimmer-free calibration by FPAA reconfiguration. We conclude by illustrating a sample application as a proof-of-concept of the proposed techniques.

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A non-invasive capacitive sensor strip for aerodynamic pressure measurement

Cited by 42 publications

References 9 publications

Experiments on aircraft flight parameter detection by on-skin sensors

Experiments on aircraft flight parameter detection by on-skin sensors

Recent Progress on Flexible Capacitive Pressure Sensors: From Design and Materials to Applications

Applicability of Field Programmable Analog Arrays to Capacitive Sensing in the Sub-pF Range

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