Sensors as the Basis for Digitalization: New Approaches in Instrumentation, IoT-concepts, and 5G

Ahrend, Ulf; Aleksy, Markus; Berning, Matthias; Gebhardt, Jörg; Mendoza, Francisco; Schulz, Dirk

doi:10.1016/j.iot.2021.100406

Cited by 12 publications

(3 citation statements)

References 17 publications

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“…Under the rapid development of the Internet of Things and 5G communication technology, the working frequency and response bandwidth of SAW sensors gradually put forward more requirements in the direction of high frequency and broadband [ 12 ]. The sensitivity of SAW sensors is directly related to the working frequency, and the higher the working frequency of SAW sensors, the higher their measurement accuracy.…”

Section: Introductionmentioning

confidence: 99%

Ultra-High Frequency Surface Acoustic Wave Sensors for Temperature Detection

Dong,

Yang,

Liu

et al. 2024

Micromachines

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Highly sensitive surface acoustic wave (SAW) sensors have recently been recognized as a promising tool for various industrial and medical applications. However, existing SAW sensors generally suffer from a complex design, large size, and poor robustness. In this paper, we develop a simple and stable delay line ultra-high frequency (UHF) SAW sensor for highly sensitive detection of temperature. A Z-shaped delay line is specially designed on the piezoelectric substrate to improve the sensitivity and reduce the substrate size. Herein, the optimum design parameters of extremely short-pitch interdigital transducers (IDTs) are given by numerical simulations. The extremely short pitch gives the SAW sensor ultra-high operating frequency and consequently ultra-high sensitivity. Several experiments are conducted to demonstrate that the sensitivity of the Z-shaped SAW delay line sensor can reach up to 116.685°/°C for temperature detection. The results show that the sensor is an attractive alternative to current SAW sensing platforms in many applications.

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Section: Introductionmentioning

confidence: 99%

Ultra-High Frequency Surface Acoustic Wave Sensors for Temperature Detection

Dong,

Yang,

Liu

et al. 2024

Micromachines

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“…Sensors can detect and measure things that are beyond the range of human perception, such as radiation or air quality, and convert that data into a digital format that can be analysed and used in a wide range of contexts. The various types of sensors, such as proximity sensor, pressure sensor, motion sensor, magnetic sensor, chemical sensor, etc., extend the ability of humans to perceive their surroundings [10]. Furthermore, AI-enabled non-invasive sensing technology, such as Radio Frequency-capture [11], can detect and track human motion and behaviour in places where humans cannot capture information directly via line of sight.…”

Section: Introductionmentioning

confidence: 99%

The Chasm of Technology Innovation in Digital Transformation: A Study from the Perspective of Transformation Informatics

Guo¹,

Liu²

2024

Innovation - Research and Development for Human, Economic and Institutional Growth

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Technological innovation plays a pivotal role in driving digital transformation. Successful entrepreneurs and business leaders recognise the potential benefits of adopting new technologies in a timely and strategic manner; because they understand this can help them gain a competitive advantage and position their organisations for long-term success in the dynamic digital marketplace. This chapter examines several cutting-edge technologies and their applications, including the Metaverse, Blockchain, and ChatGPT, from the perspective of transformation informatics. Specifically, the study aims to identify possible reasons why some technological innovations struggle to gain wide adoption and fall into what is commonly referred to as “the chasm”. To assess the significance of a technical breakthrough, the research considers various factors such as the height of technical barriers, its ecological breadth, its evolutionary potential, and its potential economic value and cultural impact on business applications. The findings of this research can help entrepreneurs to make informed decisions when selecting a technical track and enable executive leaders to manage creative technologies effectively while aligning them with their corporate strategies. By understanding the significance of emerging technologies and their potential impact on their organisation, leaders can make informed decisions and stay ahead of the curve in the rapidly changing digital landscape.

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“…Following the vigorous development of fifth-generation (5 G) communication technology and promotion of smart networking, various sensors have been introduced into the Internet of Things and wearable smart devices. 1 Traditional sensors employ capacitive or resistive structures that can only measure changes in one parameter such as voltage, current, or resistance. [2][3][4] Some sensing films in sensor systems must even be heated, which makes the process steps complicated and the system becomes too bulky because of external connections.…”

mentioning

confidence: 99%

Fully Inkjet-Printed Gas-Sensing Antenna Based on Carbon Nanotubes for Wireless Communication Applications

Kao,

Chang,

Tsai

et al. 2024

ECS J. Solid State Sci. Technol.

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This study presents a fully inkjet-printed antenna based on carbon nanotubes (CNTs) for ammonia-gas-sensing. The antenna-embedded CNT film must satisfy strict requirements in terms of resistance, uniformity, and stability. Various resistive-type gas sensors based on CNTs, which are controlled by droplet spacing (DS) and multiple passes, are realized by inkjet-printing technology to investigate their sensing characteristics. The gas response decreases with increasing CNT density; however, the distribution of repeatability is tighter because the connection junctions among CNTs increase and the conductive paths saturate. The relationship between CNT density and gas-sensing response is presented for the first time. According to the response of the resistive-type gas sensors, low resistance and stable sensing response of a DS = 20 m and 20-pass CNT film is suitable for embedding into an antenna for gas-sensing. The sensitivities of insertion and return losses under exposure to NH3 of the gas-sensing antenna demonstrate a linear relationship and reproducibility. The gas-sensing antenna based on CNT films exhibits two-dimensional value responses, real-time gas detection, reproducibility, and reversibility, which provide a viable option for wireless sensing systems.

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Sensors as the Basis for Digitalization: New Approaches in Instrumentation, IoT-concepts, and 5G

Cited by 12 publications

References 17 publications

Ultra-High Frequency Surface Acoustic Wave Sensors for Temperature Detection

Ultra-High Frequency Surface Acoustic Wave Sensors for Temperature Detection

The Chasm of Technology Innovation in Digital Transformation: A Study from the Perspective of Transformation Informatics

Fully Inkjet-Printed Gas-Sensing Antenna Based on Carbon Nanotubes for Wireless Communication Applications

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