Sensing and Sensor Fundamentals

McGrath, Michael J.; Scanaill, Cliodhna Ní

doi:10.1007/978-1-4302-6014-1_2

Cited by 61 publications

(30 citation statements)

References 64 publications

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“…Linearity describes the degree offset between the actual line and ideal straight line [ 31 , 32 ]. The torque is achieved (from 0 Nm to 0.98 Nm) by placing load at the lever of the test system, and the increased torque is 0.098 Nm.…”

Section: Experiments and Resultsmentioning

confidence: 99%

A Highly Reliable Embedded Optical Torque Sensor Based on Flexure Spring

Liu

Tian

Chen

et al. 2018

Applied Bionics and Biomechanics

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We propose a new highly reliable and lightweight embedded optical torque sensor for biomimetic robot arm enabling the torque measurement in joints, which can measure torque of the joint by detecting torsion of its elastic element (mechanical structure or flexure element). Flexure spring is introduced as the elastic element of the torque sensor in this paper. Because of its curve modeling, flexure spring is not inclined to be broken contrast to crossbeam structure, which is commonly used in torque sensor. Thanks to this structure, we can build a torque sensor as an extremely compact and highly reliable size. Six types of flexure spring are proposed to be used as the elastic element of the torque sensor in this paper, which have the potential for the requirements of measurement range and multidimensional detection. The optical electronic, less influenced by electromagnetic interferences, is selected to measure the torsion displacement of the flexure spring. The proposed design is analyzed, which can obtain the successful measurement of the torque with a load capacity of 1 Nm. One of the designed optical torque sensors is optimized by FEM. The calibration and experiment are conducted to ensure its feasibility and performance.

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Section: Experiments and Resultsmentioning

confidence: 99%

A Highly Reliable Embedded Optical Torque Sensor Based on Flexure Spring

Liu

Tian

Chen

et al. 2018

Applied Bionics and Biomechanics

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“…Sensors in CPS generally serve as physical-interfacing nodes that interact with environments, components, or other miscellanea that are not a part of that system [44]. They provide usable outputs in response to specific measurands [45], by which cyberphysical systems form accurate perceptions of the surrounding environment, leading to more autonomous, intelligent, and reliable systems. Actuators, on the other hand, enable cyber systems to change the physical state of their surroundings.…”

Section: B Cyber-physical World Interfacingmentioning

confidence: 99%

Security and Privacy in the Emerging Cyber-Physical World: A Survey

Kaplan

Yan

et al. 2021

IEEE Commun. Surv. Tutorials

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With the emergence of low-cost smart and connected IoT devices, the area of cyber-physical security is becoming increasingly important. Past research has demonstrated new threat vectors targeting the transition process between the cyber and physical domains, where the attacker exploits the sensing system as an attack surface for signal injection or extraction of private information. Recently, there have been attempts to characterize an abstracted model for signal injection, but they primarily focus on the path of signal processing. This paper aims to systematize the existing research on security and privacy problems arising from the interaction of cyber world and physical world, with the context of broad CPS applications. The primary goals of the systematization are to (1) reveal the attack patterns and extract a general attack model of existing work, (2) understand possible new attacks, and (3) motivate development of defenses against the emerging cyber-physical threats.

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“…Currently, medical industries are massively developing the biosensor as a tool for AIDS testing and home pregnancy, allergy detection. Besides, biosensors are now widely developed for environmental applications such as detection of bacteria, pesticides and heavy metals in water samples [39]. The next sensor development is a MEMS-based sensor.…”

Section: Ferroelectrics Materials and Their Applicationsmentioning

confidence: 99%