A PVDF based 3D force sensor for micro and nano manipulation

Faramarzi, S.; Ghanbari, Ali; Chen, Xiaoqi; Wang, W.H.

doi:10.1109/icca.2009.5410237

Cited by 8 publications

(3 citation statements)

References 13 publications

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“…It has a relatively wide frequency range and extreme sensitivity, which can be 10 or more times higher than for ceramics with the same force. In addition, the small thickness of the film results in a very small crosssectional area, which means that relatively small longitudinal forces can create a very large stress within the material [33]. Another fascinating property of the piezo-film device is that it is susceptible to electro-magnetic interference, which is obviously very important.…”

Section: Pvdf Piezoelectric Sensorsmentioning

confidence: 99%

“…This means that any resistive load will form a divider network with a simple RC high-pass filter characteristic. The capacitance of a piezo film is proportional to the area of the film and inversely proportional to the thickness of the film [33]. 2 shows a schematic diagram of a PVDF, where W , T , L, and F denote the width, thickness, length, and direction vector of the applied force, respectively.…”

Section: Pvdf Piezoelectric Sensorsmentioning

confidence: 99%

See 1 more Smart Citation

Pseudo-random sequences in analysis of polyvinylidene fluoride piezoelectric sensors

Roinila

Lei

Vilkko

et al. 2012

2012 International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale (3m-Nano)

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The ability to measure the force order of micronewtons with high accuracy is highly important in various applications of micromanipulation. Past studies have indicated that polyvinylidene fluoride (PVDF) piezoelectric sensors are the most promising tools with which to measure such forces. This paper presents fast and nondestructive frequency-domain methods with which to electrically characterize and analyze the properties of PVDF piezoelectric sensors. The maximum-length binary sequence (MLBS) is used as an excitation and the systemcharacterizing responses are measured through cross-correlation techniques. The results can be used to verify the feasibility of the applied PVDF in terms of resonance frequency, bandwidth, and other characterizing properties, which provides tools for more accurate force measurements. Experimental results are shown from a commercial PVDF polymer film.

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Section: Pvdf Piezoelectric Sensorsmentioning

confidence: 99%

Section: Pvdf Piezoelectric Sensorsmentioning

confidence: 99%

Pseudo-random sequences in analysis of polyvinylidene fluoride piezoelectric sensors

Roinila

Lei

Vilkko

et al. 2012

2012 International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale (3m-Nano)

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“…12(b)). In addition, many microforce sensors have been proposed using PVDF materials, even in 3D form [103]- [105]. However, PVDF microforce sensor also has obvious shortcomings.…”

Section: Sensors In Cell Microinjectionmentioning

confidence: 99%

A Review of Recent Advances in Robotic Cell Microinjection

Chi

Zhu

2020

IEEE Access

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Cell microinjection is a direct and effective way to transfer external materials into the cell. In the field of modern biomedicine, cell microinjection is very important, no matter in genetics, reproductive health, tumor therapy or others related research directions. Traditional manual cell microinjection has the disadvantages of low efficiency and low survival rate. In contrast, robotic cell microinjection can achieve precise and effective cell microinjection, and can be used in the injection of large quantities of cells. This paper reviews recent advances in robotic cell microinjection technologies. It summarizes the main approaches of key technologies and their advantages and disadvantages, such as cell identification, cell holding, precise positioning platform, cell injection strategy, sensors in cell microinjection, and cell modeling. The conclusion of the investigation is that the robotic cell microinjection has achieved remarkable results and still has great potential for further development. It is expected to be widely used in biomedicine and other fields to realize convenient, fast, and efficient microinjection operations of large number of individual cells. INDEX TERMS Robotic cell microinjection, cell identification, cell holding, precise displacement platform, injection strategy, sensors in cell microinjection, cell modeling.

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