نتایج جستجو برای: fgm cantilever micro beam

تعداد نتایج: 229990  

Journal: :Journal of physics 2022

The internal jaw stiffness of the silicon arm and its uniformity directly determine geometric position clamped part, which in turn affects accuracy fusion target ball. slight variation caused by machining errors is a crucial factor affecting micro-target. To accurately detect errors, this paper proposes multi-point detection method combining micro-feed force application high-precision image ins...

Journal: :The Review of scientific instruments 2013
M Fairbairn S O R Moheimani

The image quality and resolution of the Atomic Force Microscope (AFM) operating in tapping mode is dependent on the quality (Q) factor of the sensing micro-cantilever. Increasing the cantilever Q factor improves image resolution and reduces the risk of sample and cantilever damage. Active piezoelectric shunt control is introduced in this work as a new technique for modifying the Q factor of a p...

Nowadays, atomic force microscope is considered as a useful tool in the determination of intermolecular forces and surface topography with the resolution of nanometers. In this kind of microscope, micro cantilever is considered as the heart of the microscope and is used as a measuring tool.  This paper is aimed towards investigating the behavior of a piezoelectric micro cantilever with a triang...

2012
Ibtissam Mahdi Shihab

In this paper, a novel analysis was carried out on the biosensor microcantilevers in order to increase the sensitivity of a microcantilever based biosensor piezoresistive. Holes were made and compared with the basic rectangular (R), triangular (T), and step(S) profile cantilever. Effect of changing the micro-cantilevers profile and its cross-section shape was investigated. A finite element ANSY...

Journal: :نشریه دانشکده فنی 0
مسعود خیام

the fundamental natural frequency of vibration of an inflatable cantilever beam is computed from the system of the three equeations given for vibratory motion of the beam. the effect of various parameters is discussed, and it is shown that, as internal pressure increases, fundamental natural frequency will increase , indicating the stiffening characteristics of internal pressure. a single exper...

2009
Hendrik Frentrup Matthew S. Allen

For more than two decades, the Atomic Force Microscope (AFM) has provided valuable insights in nanoscale phenomena, and it is now widely employed by scientists from various disciplines. AFMs use a cantilever beam with a sharp tip to scan the surface of a sample both to image it and to perform mechanical testing. The AFM measures the deflection of the probe beam so one must first find the spring...

2008
Hui Xie Julien Vitard Sinan Haliyo Stéphane Régnier

A dynamic method for mass detection, considering attaching positions of micro-objects on microcantilevers, is introduced. Two models based on the Rayleigh– Ritz method were developed for analyses of the first flexural and the first torsional modes of a “cantilever– mass” system, respectively. Due to one-to-one correspondence between the longitudinal adhering positions of the micro-objects and t...

Arman Mohammadi, Farzad AyatollahzadehShirazi Mohammad Reza Zakerzadeh, Pooyan Nayyeri,

Energy harvesting is a conventional method to collect the dissipated energy of a system. In this paper, we investigate the optimal location of a piezoelectric element to harvest maximum power concerning different excitation frequencies of a vibrating cantilever beam. The cantilever beam oscillates by a concentrated sinusoidal tip force, and a piezoelectric patch is integrated on the beam to gen...

2010
O. Sidek M. N. Mat Nawi M. A. Miskam

107106-6464 IJET-IJENS © December 2010 IJENS I J E N S Abstract— Capacitive cantilever-mass micro-machined accelerometers have attracted much interest for properties such as a simple structure and potentially high sensitivity. This paper presents the simulation of a low-g capacitive cantilever-mass micro-machined accelerometer model to gain the desirable magnitude of displacement and capacitanc...

Journal: :The Review of scientific instruments 2013
Huan Wang J C Fenton O Chiatti P A Warburton

Nanoscale mechanical resonators are highly sensitive devices and, therefore, for application as highly sensitive mass balances, they are potentially superior to micromachined cantilevers. The absolute measurement of nanoscale displacements of such resonators remains a challenge, however, since the optical signal reflected from a cantilever whose dimensions are sub-wavelength is at best very wea...

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