An improved force transducer using amorphous ribbon cores

Magnetic domains of ferromagnetic amorphous ribbon have been observed using Bitter powder method. However, the domains of amorphous ribbon are very complicated and the surface of ribbon is not flat, so that clear domain image has not been obtained. It has been desired to observe more clear image in order to analyze the domain structure of this zero magnetocrystalline anisotropy material. So, we tried to observe magnetic domains by means of a back-scattered electron mode of high voltage scanning electron microscope (HVSEM).HVSEM method has several advantages compared with the ordinary methods for observing domains: (1) high contrast (0.9, 1.5 and 5% at 50, 100 and 200 kV) (2) high penetration depth of electrons (0.2, 1.5 and 8 μm at 50, 100 and 200 kV). However, image resolution of previous HVSEM was quite low (maximum magnification was less than 100x), because the objective lens cannot be excited for avoiding the application of magnetic field on the specimen.

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Multifunctional vibration-frequency measuring device a force transducer with a cylindrical resonator

Izmeritel`naya Tekhnika ◽

10.32446/0368-1025it.2018-7-41-46 ◽

2018 ◽

pp. 41-46

Author(s):

U.K. TARANENKO ◽

O.U. OLEINIK

Keyword(s):

Vibration Frequency ◽

Force Transducer ◽

Cylindrical Resonator ◽

Measuring Device

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Improved degradation capability of Fe81B10C9 amorphous ribbon with the nanoscale layer rich of small atoms (B, C)

Journal of Non-Crystalline Solids ◽

10.1016/j.jnoncrysol.2021.120838 ◽

2021 ◽

Vol 564 ◽

pp. 120838

Author(s):

Binbin Wei ◽

Xuelian Li ◽

Honggang Sun ◽

Kaikai Song ◽

Li Wang

Keyword(s):

Amorphous Ribbon

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On Detection of Air-Gap Flux and Torque in An Induction Motor Using An Amorphous Ribbon

IEEE Translation Journal on Magnetics in Japan ◽

10.1109/tjmj.1987.4549722 ◽

1987 ◽

Vol 2 (12) ◽

pp. 1152-1153 ◽

Cited By ~ 1

Author(s):

R. Ueda ◽

T. Sonoda ◽

K. Takayama

Keyword(s):

Induction Motor ◽

Amorphous Ribbon ◽

Air Gap

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Enhanced Signal-to-Noise and Fast Calibration of Optical Tweezers Using Single Trapping Events

Micromachines ◽

10.3390/mi12050570 ◽

2021 ◽

Vol 12 (5) ◽

pp. 570

Author(s):

Alexander B. Stilgoe ◽

Declan J. Armstrong ◽

Halina Rubinsztein-Dunlop

Keyword(s):

Brownian Motion ◽

Optical Tweezers ◽

Optical Trap ◽

Force Transducer ◽

Signal To Noise ◽

Likelihood Estimator ◽

Micro Fluidics ◽

Large Numbers ◽

Force Reconstruction ◽

Micron Particle

The trap stiffness us the key property in using optical tweezers as a force transducer. Force reconstruction via maximum-likelihood-estimator analysis (FORMA) determines the optical trap stiffness based on estimation of the particle velocity from statistical trajectories. Using a modification of this technique, we determine the trap stiffness for a two micron particle within 2 ms to a precision of ∼10% using camera measurements at 10 kfps with the contribution of pixel noise to the signal being larger the level Brownian motion. This is done by observing a particle fall into an optical trap once at a high stiffness. This type of calibration is attractive, as it avoids the use of a nanopositioning stage, which makes it ideal for systems of large numbers of particles, e.g., micro-fluidics or active matter systems.

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A miniature electrooptical force transducer

IEEE Transactions on Biomedical Engineering ◽

10.1109/10.1344 ◽

1988 ◽

Vol 35 (2) ◽

pp. 93-98 ◽

Cited By ~ 11

Author(s):

N. Maalej ◽

J.G. Webster

Keyword(s):

Force Transducer

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Experimental evidence for friction-enhancing integumentary modifications of chameleons and associated functional and evolutionary implications

Proceedings of The Royal Society B Biological Sciences ◽

10.1098/rspb.2013.2334 ◽

2014 ◽

Vol 281 (1775) ◽

pp. 20132334 ◽

Cited By ~ 9

Author(s):

Eraqi R. Khannoon ◽

Thomas Endlein ◽

Anthony P. Russell ◽

Kellar Autumn

Keyword(s):

Experimental Evidence ◽

Frictional Coefficient ◽

Force Transducer ◽

Morphological Convergence ◽

Functional Implications ◽

Smooth Skin ◽

Derivatives Of

The striking morphological convergence of hair-like integumentary derivatives of lizards and arthropods (spiders and insects) demonstrates the importance of such features for enhancing purchase on the locomotor substrate. These pilose structures are responsible for the unique tractive abilities of these groups of animals, enabling them to move with seeming ease on overhanging and inverted surfaces, and to traverse inclined smooth substrates. Three groups of lizards are well known for bearing adhesion-promoting setae on their digits: geckos, anoles and skinks. Similar features are also found on the ventral subdigital and distal caudal skin of chameleons. These have only recently been described in any detail, and structurally and functionally are much less well understood than are the setae of geckos and anoles. The seta-like structures of chameleons are not branched (a characteristic of many geckos), nor do they terminate in spatulate tips (which is characteristic of geckos, anoles and skinks). They are densely packed and have attenuated blunt, globose tips or broad, blade-like shafts that are flattened for much of their length. Using a force transducer, we tested the hypothesis that these structures enhance friction and demonstrate that the pilose skin has a greater frictional coefficient than does the smooth skin of these animals. Our results are consistent with friction being generated as a result of side contact of the integumentary filaments. We discuss the evolutionary and functional implications of these seta-like structures in comparison with those typical of other lizard groups and with the properties of seta-mimicking synthetic structures.

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