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Micromachines, Volume 14, Issue 2

February 2023 - 263 articles

Cover Story: This brief proposes a signal-independent background calibration in pipeline-SAR ADCs with a convergence-accelerated technique. To achieve signal independence, an auxiliary capacitor array CA is introduced to pre-inject a pseudo-random noise (PN) in the sampling phase to cancel out the opposite PN injection of the calibrated capacitor in the conversion phase, and CA is also used to realize the D/A function of the calibrated capacitor in the conversion phase. Additionally, the first sub-ADC is designed with extended conversion bits to quantize its own residue after delivering the conversion bits required by the first stage. Afterwards, this result is provided to the calibration algorithm to reduce the signal component and accelerate convergence. View this paper
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Articles (263)

  • Article
  • Open Access
38 Citations
2,226 Views
13 Pages

20 February 2023

We investigate the spin angular momentum (SAM) of double-index cylindrical vector beams in tight focus. Such a set of beams is a generalization of the conventional cylindrical vector beams since the polarization order is different for the different t...

  • Article
  • Open Access
19 Citations
2,988 Views
18 Pages

Numerical Simulation Study of Multi-Field Coupling for Laser Cladding of Shaft Parts

  • Changlong Zhao,
  • Chen Ma,
  • Junbao Yang,
  • Ming Li,
  • Qinxiang Zhao,
  • Hongnan Ma and
  • Xiaoyu Jia

20 February 2023

Since shaft parts operate under harsh environments for a long time, many critical parts suffer from corrosion, wear and other problems, leading to part failure and inability to continue in service. It is imperative to repair failed parts and increase...

  • Article
  • Open Access
5 Citations
2,680 Views
14 Pages

Single-Cell Microarray Chip with Inverse-Tapered Wells to Maintain High Ratio of Cell Trapping

  • Ryota Sano,
  • Kentaro Koyama,
  • Narumi Fukuoka,
  • Hidetaka Ueno,
  • Shohei Yamamura and
  • Takaaki Suzuki

20 February 2023

A single-cell microarray (SCM) influenced by gravitational force is expected to be one of the simple methods in various fields such as DNA analysis and antibody production. After trapping the cells in the SCM chip, it is necessary to remove the liqui...

  • Article
  • Open Access
7 Citations
3,040 Views
10 Pages

Intelligent Device for Harvesting the Vibration Energy of the Automobile Exhaust with a Piezoelectric Generator

  • Jie Huang,
  • Cheng Xu,
  • Nan Ma,
  • Qinghui Zhou,
  • Zhaohua Ji,
  • Chunxia Jia,
  • Shan Xiao and
  • Peng Wang

20 February 2023

With increasing consumption of energy and increasing environmental pollution, research on capturing the vibration energy lost during transportation and vehicle driving is growing rapidly. There is a large amount of vibration energy in the automobile...

  • Article
  • Open Access
2,244 Views
11 Pages

Programmable UV-Curable Resin by Dielectric Force

  • Yi-Wei Lin,
  • Chang-Yi Chen,
  • Ying-Fang Chang,
  • Yii-Nuoh Chang and
  • Da-Jeng Yao

20 February 2023

In this study, UV-curable resin was formed into different patterns through the programmable control of dielectric force. The dielectric force is mainly generated by the dielectric chip formed by the interdigitated electrodes. This study observed that...

  • Article
  • Open Access
1 Citations
2,201 Views
14 Pages

19 February 2023

The accumulation of separated out impurities from pipeline transported medium onto the pipe wall is a major cause of downtime maintenance of oil and gas production systems. To regularly scrub off wall-mounted debris and probe the severity, pipeline i...

  • Article
  • Open Access
14 Citations
3,043 Views
11 Pages

Structure Optimization of Planar Nanoscale Vacuum Channel Transistor

  • Ji Xu,
  • Congyuan Lin,
  • Yu Li,
  • Xueliang Zhao,
  • Yongjiao Shi and
  • Xiaobing Zhang

19 February 2023

Due to its unique structure, discoveries in nanoscale vacuum channel transistors (NVCTs) have demonstrated novel vacuum nanoelectronics. In this paper, the structural parameters of planar-type NVCTs were simulated, which illustrated the influence of...

  • Article
  • Open Access
22 Citations
4,600 Views
13 Pages

Hierarchical NiMn-LDH Hollow Spheres as a Promising Pseudocapacitive Electrode for Supercapacitor Application

  • Jai Kumar,
  • Rana R. Neiber,
  • Zaheer Abbas,
  • Razium Ali Soomro,
  • Amal BaQais,
  • Mohammed A. Amin and
  • Zeinhom M. El-Bahy

19 February 2023

Layered double hydroxides (LDH) are regarded as attractive pseudocapacitive materials due to their impressive capacitive qualities that may be adjustable to their morphological features. However, the layered structure of LDH renders them susceptible...

  • Article
  • Open Access
10 Citations
10,367 Views
12 Pages

19 February 2023

Resistors with memory (memristors), inductors with memory (meminductors) and capacitors with memory (memcapacitors) play different roles in novel computing architectures. We found that a coil with a magnetic core is an inductor with memory (meminduct...

  • Article
  • Open Access
2 Citations
2,262 Views
17 Pages

Boosting the Electrostatic MEMS Converter Output Power by Applying Three Effective Performance-Enhancing Techniques

  • Mona S. Salem,
  • Abdelhalim Zekry,
  • Mohamed Abouelatta,
  • Ahmed Shaker,
  • Marwa S. Salem,
  • Christian Gontrand and
  • Ahmed Saeed

19 February 2023

This current study aims to enhance the electrostatic MEMS converter performance mainly by boosting its output power. Three different techniques are applied to accomplish such performance enhancement. Firstly, the power is boosted by scaling up the te...

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Micromachines - ISSN 2072-666XCreative Common CC BY license