Mechatronic sensors in integrated vehicle architecture

Zabler, Erich; Heintz, F.; Dietz, Rainer; Gerlach, Günter

doi:10.1016/0924-4247(92)80080-m

Cited by 16 publications

(4 citation statements)

References 2 publications

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“…An accurate real-time motion vector monitoring enables transmission of movement signals to the digital word, which is a hot topic for a widespread application in the human-machine interface, [1] internet of things, [2] artificial intelligence, [3] mapping, [4] and so on. Traditional vector sensor based on different physical transduction mechanisms including capacitance, [5] electromagnetic field, [6] optical, [7] piezoresistance, and piezoelectric effect, [8] have already been reported to promote the development of motion sensing technology. Usually, extracting all of the movement parameters based on these technologies relies on widely distributed sensors, which are always powered by portable power sources such as batteries.…”

Section: Introductionmentioning

confidence: 99%

A Motion Vector Sensor via Direct‐Current Triboelectric Nanogenerator

Yin

Liu

Zhou

et al. 2020

Adv Funct Materials

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Motion vector sensors play an important role in artificial intelligence and internet of things. Here, a triboelectric vector sensor (TVS) based on a directcurrent triboelectric nanogenerator is reported, for self-powered measuring various motion parameters, including displacement, velocity, acceleration, angular, and angular velocity. Based on the working mechanism of the contact-electrification effect and electrostatic breakdown, a continuous DC signal can be collected to directly monitor moving objects free from environmental electromagnetic signal interference existing in conventional self-powered TVSs with an alternative-current signal output, which not only enhances the sensitivity of sensors, but also provides a simple solution to miniaturize the sensors. Its sensitivity is demonstrated to be equivalent to state-of-the-art photoelectric technology by a comparative experiment in an intelligent mouse. Notably, an intelligent pen based on the miniaturized TVS is designed to realize motion trajectory tracing, mapping, and writing on the curved surface. This work provides a new paradigm shift to design motion vector sensors and self-powered sensors in artificial intelligent and internet of things.

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Section: Introductionmentioning

confidence: 99%

A Motion Vector Sensor via Direct‐Current Triboelectric Nanogenerator

Yin

Liu

Zhou

et al. 2020

Adv Funct Materials

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“…Motion sensing, or the ability to resolve displacement, direction, and velocity, is essential in applications related to manufacturing, mapping, transportation, as well as emerging fields such as robotics and personalized medicine. Current technologies for sensing applications in these areas are mostly based on electromagnetic interaction, optical sensing, potentiometry, and capacitive devices . Although well‐developed, these technologies suffer from limitations such as being power‐dependent, bulky, rigid, and nontransparent.…”

Section: Introductionmentioning

confidence: 99%

Aerosol‐Jet Printed Fine‐Featured Triboelectric Sensors for Motion Sensing

Jing

Choi

Smith

et al. 2018

Adv Materials Technologies

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the relatively simple mechanism involved in converting mechanical energy into electrical signals, [15,16] wide material selection, [17,18] and light weight. [19] Triboelectric generators produce active electric output due to mechanical motion-driven contact electrification and charge induction. These generators can also be used as sensors, where the output signal can be monitored for sensing movement. [20][21][22][23][24] One particular type of triboelectric sensor designed for motion sensing, based on grated electrode structures on triboelectric surfaces, has been found to be potentially reliable, of high resolution, and direction sensitive with a wide selection of feasible materials. [25,26] Typically, these sensors comprise multiple alternating strips of two different triboelectric materials for contact electrification, and grated comb-like electrodes or interdigitated electrodes for charge induction. A commonly reported device structure involves a "mover" that slides over a "stator," with the contacting surface made up of triboelectric material strips, and the grated electrodes positioned on the backside of both the mover and the stator to form a sliding mode triboelectric sensor. [21] The relative sliding motion between the two different materials gives rise to a triboelectric charge that is picked up by the electrodes. If the electrodes are positioned only on the backside of the stator, then this structure gives rise to a freestanding mode triboelectric sensor (no electrical contact is needed from the mover). [27] To achieve high resolution, the metallic electrode gratings must be narrow (submillimeter), usually achieved via photolithography, [28] physical deposition, [26,29] or ion-etching [30] methods. These methods are not particularly cost effective and are generally inefficient for fast prototyping. At the same time, polymers that have good triboelectric properties are difficult to fabricate into the desired fine structures or finely patterned strips by the conventional lithography or physical deposition methods. This has led to the vast majority of the current grated-structure triboelectric sensors being built with metal strips as the active triboelectric material, [18,31] even though these are not particularly well-suited for triboelectric applications. Reports on all polymer-grated triboelectric sensors are thus tellingly rare, even though such devices could potentially offer better resolution and higher signal-to-noise ratios in motion sensing applications.Triboelectric motion sensors, based on the generation of a voltage across two dissimilar materials sliding across each other as a result of the triboelectric effect, have generated interest due to the relative simplicity of the typical grated device structures and materials required. However, these sensors are often limited by poor spatial and/or temporal resolution of motion due to limitations in achieving the required device feature sizes through conventional lithography or printing techniques. Furthermore, the reliance on metallic components t...

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“…The well-developed methods for velocity measurements include technologies based on potentiometers [1], magneto resistive sensing [2], magnetic field sensors [3], optical encoders [4], capacitive sensing [1], piezoelectric sensors [5][6][7], etc. Most of these sensing technologies suffer from a shortcoming: they require a power supply to sense the mechanical motion.…”

Section: Introductionmentioning

confidence: 99%