نتایج جستجو برای: capacitance measurement

تعداد نتایج: 451990  

1998
Dennis Sylvester James C. Chen Chenming Hu

This paper examines the recently introduced chargebased capacitance measurement (CBCM) technique through use of a three-dimensional (3-D) interconnect simulator. This method can be used in conjunction with simulation at early process development stages to provide designers with accurate parasitic interconnect capacitances. Metal to substrate, interwire, and interlayer capacitances are each disc...

2017
Tianming Chen John R. Bowler Nicola Bowler

This Letter presents an analytical expression for the capacitance of a curved patch capacitor whose electrodes conform to the curvature of a long, homogeneous, cylindrical dielectric rod. The capacitor is composed of two infinitely long curved electrodes, symmetrically placed about a diameter of the cylinder cross-section. The resulting capacitance per unit length depends on both the dielectric...

1999
V. J. Law A. J. Kenyon D. C. Clary

A swept frequency absorbance plasma diagnostic technique for measurement of self-resonance frequency, intrinsic plasma-tool distributed capacitance, radiative energy loss, and effective plasma capacitance is described. The ex situ probe measures the plasma properties independently of all contributions from the plasma-tool and transmission line connection to the rf supply. The technique employs ...

2005
S. Schlaeger

Spatial moisture distribution in natural soil or other material is a valuably information for many applications. Standard measurement techniques give only mean or punctual results. Therefore a new inversion algorithm has been developed to derive moisture profiles along single TDR sensor-probes. The algorithm uses the full information content of TDR reflection data measured from one or both side...

2007
P. R. McCullough M. Regan

We measured the quantum efficiency of an H2RG HgCdTe near infrared sensor array. We determine a 2-σ lower limit of 85% for the quantum efficiency averaged over the array and over three observed wavelengths, 3.38μm , 3.9μm , and 4.5μm . The peak quantum efficiency occurs near the center of the sensor and is unity within measurement uncertainty (5%). We used a blackbody, narrowband filters, and a...

2007
H. Hocheng

Purpose: This article provides an overview of the monitoring technique for nanoimprint. Optical and electrical monitoring approaches that have the potential for detecting and monitoring mold deformation and cavity filling in nanoimprint will be reviewed. The major part is devoted to the review of an in-situ mold filling monitoring system based on capacitance measurement for nanoimprinting opera...

Journal: :مهندسی بیوسیستم ایران 0
آذر خورسندی کارشناسی ارشد، دانشگاه صنعتی اصفهان عباس همت استاد، دانشگاه صنعتی اصفهان امین اله معصومی استادیار، دانشگاه صنعتی اصفهان رسول امیرفتاحی استادیار، دانشگاه صنعتی اصفهان

soil compaction and moisture content are two of the factors that greatly influence variations in crop yield. capacitance-based sensor is a sensitive device for estimating soil water content. in this method of soil moisture content measurement, soil acts as the dielectric of the capacitor. throughout this research work, a capacitance-based moisture sensor that can measure the soil moisture conte...

Journal: :Electronics 2023

Voltage measurement is an important part of power system operation, and non-intrusive voltage sensors have the advantages low insulation difficulty, simple structure, easy loading unloading, high construction safety, which become a new direction for measurement. Based on principle electric field coupling, this paper constructs floating ground three-capacitance model, can complete accurate witho...

2006
T. N. Ruckmongathan Prabhjot Juneja A. R. Shashidhara

A technique for measuring the voltage dependent capacitance of pixels by using a low cost integrated circuit and some common laboratory equipments is proposed. The error in measurement ranges from 1 to 2% and this technique can be used for indirect measurement of various parameters of the liquid crystals.

Journal: :Coatings 2021

In the gas-water two phase of horizontal well, gas holdup is usually obtained by inverse calculation water measured array capacitance probes. Gas Array Tool (GAT) has been developed to directly measure holdup. This instrument introduced into China and its simulation experiment in flow wells carried out for first time study applicability measurement. Firstly, response principle measurement metho...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید