Development of a Strain Sensor Matrix on Mobilized Flexible Substrate for the Imaging of Wind Pressure Distribution

Kanazawa, Shusuke; Ushijima, Hirobumi

doi:10.3390/mi11020232

Cited by 6 publications

(5 citation statements)

References 16 publications

(17 reference statements)

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“…Lv presented a novel flexible sensor integrated pyramidal micropatterns with ion-gel nanofibers, enabling it to effectively detect both normal and tangential forces (Lv et al, 2023b). As shown in Figure 6D, Kanazawa presented a flexible sensor designed for measuring the distribution of wind pressure (Kanazawa and Ushijima, 2020). To enhance the mechanical mobility of resistive strain sensor matrix against wind, a suspension structure was integrated into a plastic sheet.…”

Section: Flexible Rfidmentioning

confidence: 99%

Recent progress in piezoelectric thin films as self-powered devices: material and application

Song,

Hou,

Jiang

2024

Front. Mater.

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Piezoelectric materials have become a key component in sensors and actuators in many industrial fields, such as energy harvesting devices, self-powered structures, biomedical devices, nondestructive testing, owing to the novel properties including high piezoelectric coefficient and electromechanical coupling factors. Piezoelectric thin films integrated on silicon substrates are widely investigated for their high performance and low manufacturing costs to meet the requirement of sensor networks in internet of things (IoT). The aim of this work is to clarify the application and design structure of various piezoelectric thin films types, synthesis methods, and device processes. Based on latest literature, the process of fabricating thin film sensors is outlined, followed by a concise overview of techniques used in microelectromechanical systems (MEMS) processing that can integrate more complex functions to obtain relevant information in surrounding environment. Additionally, by addressing piezoelectric thin films sensors as a cutting-edge technology with the ability to produce self-powered electronic devices, this work delivers incisive conclusions on all aspects of piezoelectric sensor related features. A greater understanding of piezoelectricity is necessary regarding the future development and industry challenges.

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Section: Flexible Rfidmentioning

confidence: 99%

Recent progress in piezoelectric thin films as self-powered devices: material and application

Song,

Hou,

Jiang

2024

Front. Mater.

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“…Flexible strain sensors can be used in a variety of sensing applications that take advantage of their flexibility and large-area manufacturing, such as mechanical deformation of the human body [17,80], changes in external natural forces [81,82], and health monitoring for social infrastructures [83][84][85]. Takei et al reported electrical muscle stimulation (EMS) using textile electrodes, and mechanomyogram (MMG) sensor measurement using an ultrathin piezoresistive silicon strain sensor in flexible form, among other applications of strain sensors for mechanical deformation of the human body [80].…”

Section: Strain Sensorsmentioning

confidence: 99%

“…This sensor is made Xu et al have developed a thermal sensor for monitoring wind speed and direction in the context of a sensing application for external natural forces [81]. Kanazawa et al subsequently showed that a novel flexible sensor based on a strain sensor matrix can detect wind pressure distribution [82]. The strain sensor matrix was printed on the film's surface to detect the deflection of the suspended structures via whole-screen printing.…”

Section: Strain Sensorsmentioning

confidence: 99%

Flexible Ceramic Film Sensors for Free-Form Devices

Nakajima

Fujio

Sugahara

et al. 2022

Sensors

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Recent technological innovations, such as material printing techniques and surface functionalization, have significantly accelerated the development of new free-form sensors for next-generation flexible, wearable, and three-dimensional electronic devices. Ceramic film sensors, in particular, are in high demand for the production of reliable flexible devices. Various ceramic films can now be formed on plastic substrates through the development of low temperature fabrication processes for ceramic films, such as photocrystallization and transferring methods. Among flexible sensors, strain sensors for precise motion detection and photodetectors for biomonitoring have seen the most research development, but other fundamental sensors for temperature and humidity have also begun to grow. Recently, flexible gas and electrochemical sensors have attracted a lot of attention from a new real-time monitoring application that uses human breath and perspiration to accurately diagnose presymptomatic states. The development of a low-temperature fabrication process of ceramic film sensors and related components will complete the chemically stable and reliable free-form sensing devices by satisfying the demands that can only be addressed by flexible metal and organic components.

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“…Flexible strain sensors are in high demand in many areas of technology, such as biomedicine and healthcare (blood flow pulsation sensors [ 1 ], respiration detection [ 2 ], limb movement monitoring [ 3 ], muscle signal studies [ 4 ], electronic skin [ 5 ], etc.) machines [ 6 ], soft robotics [ 7 ], interactive games [ 8 ], and virtual reality [ 9 ], as well as various industrial applications (for example, wind pressure control sensors [ 10 ], piezotronic strain sensors for transistors [ 11 ], etc.). The high interest in the development of flexible sensors is due to their (1) large elongation, which allow them to be used for registering deformation in both low and large ranges, and (2) softness, which leads to a potentially simpler integration with the human body, and also makes it possible to solve the problem of rigidity and bulkiness of structures.…”

Section: Introductionmentioning

confidence: 99%

Flexible Strain-Sensitive Silicone-CNT Sensor for Human Motion Detection

et al. 2022

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This article describes the manufacturing technology of biocompatible flexible strain-sensitive sensor based on Ecoflex silicone and multi-walled carbon nanotubes (MWCNT). The sensor demonstrates resistive behavior. Structural, electrical, and mechanical characteristics are compared. It is shown that laser radiation significantly reduces the resistance of the material. Through laser radiation, electrically conductive networks of MWCNT are formed in a silicone matrix. The developed sensor demonstrates highly sensitive characteristics: gauge factor at 100% elongation −4.9, gauge factor at 90° bending −0.9%/deg, stretchability up to 725%, tensile strength 0.7 MPa, modulus of elasticity at 100% 46 kPa, and the temperature coefficient of resistance in the range of 30–40 °С is −2 × 10−3. There is a linear sensor response (with 1 ms response time) with a low hysteresis of ≤3%. An electronic unit for reading and processing sensor signals based on the ATXMEGA8E5-AU microcontroller has been developed. The unit was set to operate the sensor in the range of electrical resistance 5–150 kOhm. The Bluetooth module made it possible to transfer the received data to a personal computer. Currently, in the field of wearable technologies and health monitoring, a vital need is the development of flexible sensors attached to the human body to track various indicators. By integrating the sensor with the joints of the human hand, effective movement sensing has been demonstrated.

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Development of a Strain Sensor Matrix on Mobilized Flexible Substrate for the Imaging of Wind Pressure Distribution

Cited by 6 publications

References 16 publications

Recent progress in piezoelectric thin films as self-powered devices: material and application

Recent progress in piezoelectric thin films as self-powered devices: material and application

Flexible Ceramic Film Sensors for Free-Form Devices

Flexible Strain-Sensitive Silicone-CNT Sensor for Human Motion Detection

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