scholarly journals Temperature- and phase-independent lateral force sensor based on a core-offset multi-mode fiber interferometer

2008 ◽  
Vol 16 (23) ◽  
pp. 19291 ◽  
Author(s):  
Bo Dong ◽  
Da-Peng Zhou ◽  
Li Wei ◽  
Wing-Ki Liu ◽  
John W. Y. Lit
Keyword(s):  
Force Sensor ◽  
Lateral Force ◽  
Multi Mode

scholarly journals Ultrasensitive nano-optomechanical force sensor operated at dilution temperatures

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Francesco Fogliano ◽  
Benjamin Besga ◽  
Antoine Reigue ◽  
Laure Mercier de Lépinay ◽  
Philip Heringlake ◽  
...  
Keyword(s):  
Thermal Conduction ◽  
Photon Counting ◽  
Force Sensor ◽  
Lateral Force ◽  
Oscillation Period ◽  
The Road ◽  
Field Gradients ◽  
Concomitant Reduction ◽  
Generic Strategy ◽  
Conduction Properties

AbstractCooling down nanomechanical force probes is a generic strategy to enhance their sensitivities through the concomitant reduction of their thermal noise and mechanical damping rates. However, heat conduction becomes less efficient at low temperatures, which renders difficult to ensure and verify their proper thermalization. Here we implement optomechanical readout techniques operating in the photon counting regime to probe the dynamics of suspended silicon carbide nanowires in a dilution refrigerator. Readout of their vibrations is realized with sub-picowatt optical powers, in a situation where less than one photon is collected per oscillation period. We demonstrate their thermalization down to 32 ± 2 mK, reaching very large sensitivities for scanning probe force sensors, 40 zN Hz−1/2, with a sensitivity to lateral force field gradients in the fN m−1 range. This opens the road toward explorations of the mechanical and thermal conduction properties of nanoresonators at minimal excitation level, and to nanomechanical vectorial imaging of faint forces at dilution temperatures.

A Temperature-independent Lateral Force Sensor using a Pair of FBGs

2007 ◽  
Author(s):  
J.Z. Hao ◽  
L.C. Ong ◽  
Y.D. Gong ◽  
Z.H. Cai ◽  
J.H. Ng ◽  
...  
Keyword(s):  
Force Sensor ◽  
Lateral Force

scholarly journals Wind Tunnel Experiment of Multi-Mode ARC Sail Device

2021 ◽  
Vol 28 (4) ◽  
pp. 20-29
Author(s):  
Huawu Zhang ◽  
Yihuai Hu ◽  
Jianhai He
Keyword(s):  
Power Generation ◽  
Wind Tunnel ◽  
Wind Power ◽  
Comprehensive Evaluation ◽  
Structural Characteristics ◽  
Lateral Force ◽  
Wind Power Generation ◽  
Energy Utilization ◽  
Multi Mode ◽  
Power Generation Performance

Abstract A ship’s wind energy utilization device with multi-mode arc-shaped sails is designed, which have different working modes for sail-assisting or wind power generation according to the ship’s navigation. The structural characteristics and working principles of this device are firstly described in this paper. Three sets of arc-shaped sails with different thickness (4.5 cm, 11.3 cm, 21.7 cm) were designed. Wind tunnel experiments were carried out in the respects of sail-assisting performance and wind-power generation to determine the best sail blade shape and to verify the energy-saving effect of this device. Experiments show that the sail with the smallest thickness (4.5 cm) has a better boosting effect than others, and the sail with the largest thickness (21.7 cm) has the best wind power generation performance. Considering the lateral force and the structural strength of the support, in the case of the comprehensive evaluation for the boosting and power generation performance, it is considered that the intermediate thickness (11.3 cm) is the best choice. The device has a good comprehensive energy utilization effect and has development and application value.

Calibration of lateral force measurements in atomic force microscopy with a piezoresistive force sensor

2008 ◽  
Vol 79 (3) ◽  
pp. 033708 ◽  
Author(s):  
Hui Xie ◽  
Julien Vitard ◽  
Sinan Haliyo ◽  
Stéphane Régnier ◽  
Mehdi Boukallel
Keyword(s):  
Atomic Force Microscopy ◽  
Force Sensor ◽  
Lateral Force ◽  
Force Measurements ◽  
Force Microscopy ◽  
Atomic Force
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