Results 221 to 230 of about 18,878 (238)

The Effects of Driving Waveform and Frequency on the Droplet Formation Process

Volume 11: Micro and Nano Systems, Parts A and B, 2007
For a piezoelectric stack (PZT) driven droplet generator, the driving waveform and driving frequency effects on liquid filament shape and droplet characteristics have been studied. A lumped element model (LEM) is developed to study the acoustic-mechanical behavior and the volumetric rejection of the droplet generator.
G. Yang, J. A. Liburdy
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Terahertz waveform considerations for nonlinearly driving lattice vibrations

Journal of Applied Physics, 2019
High-field terahertz (THz) spectroscopy is applied to nonlinearly excite the E phonon-polariton vibrational coordinate in LiNbO3. We compare three THz sources to show that by optimizing the THz waveform, we can drive the atomic motion to large amplitudes and observe nonlinear effects.
Brittany E. Knighton, R. Tanner Hardy, Courtney L. Johnson, Lauren M. Rawlings, Joel T. Woolley, Coraima Calderon, Alexa Urrea, Jeremy A. Johnson   +7 more
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An improved driving waveform reference grayscale of electrophoretic displays

SPIE Proceedings, 2015
Driving waveform is an important component for gray scale display on the electrophoretic display (EPD). In the traditional driving waveform, a white reference gray scale is formed before writing a new image. However, the reflectance value can not reach agreement in each gray scale transformation. In this paper, a new driving waveform, which has a short
Li Wang, Zichuan Yi, Bao Peng, Guofu Zhou   +3 more
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A design system for driving waveforms of microcapsule electrophoretic display

2016 IEEE International Conference on Signal and Image Processing (ICSIP), 2016
Due to its advantageous features (eye protection, low energy consumption and capability of being read under any lighting-conditions), Electrophoretic displays (EPD) have been rapidly developed in the past ten years. Different types or production batches of EPD films need different driving waveforms; even in the same device, different driving waveforms ...
Feibo Duan, Pengfei Bai, Alex Henzen, Guofu Zhou   +3 more
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Digitising and measurement of variable-frequency waveforms in thyristor drives

Transactions of the Institute of Measurement and Control, 1985
On-going research within our department concerns the testing of thyristor drives for traction use. As a result of this work it became necessary to digitise the repetitive variable-frequency signals produced by the drives, to obtain by software processing root-mean-square and average values of current and voltage waveforms. This was undertaken primarily
J.G. Martin, C.A. Roebuck
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Development of hardware neural networks generating driving waveform for electrostatic actuator

Artificial Life and Robotics, 2020
The authors are studying to control the locomotion of the microrobot system using hardware neural networks (HNN). In previous research, a waveform generator was used to drive the electrostatic actuators of the microrobot. Once the driving circuit is constructed using HNN, the controlling circuit and the driving circuit can be integrated into a single ...
Takuro Sasaki, Mika Kurosawa, Masaya Ohara, Yuichiro Hayakawa, Daisuke Noguchi, Yuki Takei, Minami Kaneko, Fumio Uchikoba, Ken Saito   +8 more
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Waveform Bounding and Combination Techniques for Direct Drive Testing

1994
Abstract : This paper presents various methods to combine a set of measured test signals into a composite signal. The composite signal represents the set of measured test signals by retaining the significant attributes of the original set of measured test data.
Thomas F. Winnenberg, Murali Tummala, Edward Parimuha, Samuel Frazier   +3 more
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A driving strategy dedicated to S.R.: the theory of waveform modification with periodical driving circuit regulation

Twentieth Annual IEEE Applied Power Electronics Conference and Exposition, 2005. APEC 2005., 2005
The theory of waveform modification with periodical driving circuit regulation dedicated to solve the dead time problem of S.R. that occurs in some DC/DC converters is presented in this paper. By utilizing the proposed theory, the existing charge retention driving circuit is analyzed, furthermore a series of novel periodical structure adjustment ...
null Yilei Gu, null Yu Du, null Zhengyu Lu, null Zhaoming Qian, null Wenxi Yao, null Guisong Huang   +5 more
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Effect of waveform of the driving field on electroconvection near the dielectric inversion frequency

Physical Review E, 2016
This paper concerns the instability behavior of a nematic liquid crystal in the region of dielectric inversion frequency for different waveforms of the exciting electric field. The critical frequency separating the regimes of dielectric and electroconvective primary bifurcation states shows a notable dependence on the waveform.
K S, Krishnamurthy, Pramoda, Kumar
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Nanocoating for Variable Frequency Drives Under Square Waveform

2023 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP), 2023
Antigoni C. Konstantinou, Ashley Lam, Wesley Zhong, Riccardo Casalini, Yang Cao   +4 more
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