A simple piezoelectric droplet generator

Yang, Jiann C.; Chien, Wei-Ting Kary; King, M D.; Grosshandler, William L.

doi:10.1007/s003480050134

Cited by 43 publications

(33 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Even in a controlled environment, rogue coalescence events arise, with a period on the order of an hour, presumably owing to the settling of impurities onto the bath. Such interruptions make clear the value of a mechanism for creating identical droplets on demand (Yang et al 1997, Terwagne 2012). ) extended these studies in order to guide their theoretical developments.…”

Section: The Faraday Levitatormentioning

confidence: 99%

Pilot-Wave Hydrodynamics

Bush

2015

Annu. Rev. Fluid Mech.

280

343

View full text Add to dashboard Cite

Yves Couder, Emmanuel Fort and coworkers have recently discovered that a millimetric droplet sustained on the surface of a vibrating fluid bath may self-propel through a resonant interaction with its own wave field. We review experimental evidence indicating that the walking droplets exhibit certain features previously thought to be exclusive to the microscopic, quantum realm. We then review theoretical descriptions of this hydrodynamic pilot-wave system that yield insight into the origins of its quantum-like behavior. Quantization arises from the dynamic constraint imposed on the droplet by its pilot-wave field, while multimodal statistics appear to be a feature of chaotic pilot-wave dynamics. We attempt to assess the potential and limitations of this hydrodynamic system as a quantum analog. This fluid system is compared to quantum pilot-wave theories, shown to be markedly different from Bohmian mechanics, more closely related to de Broglie's original conception of quantum dynamics, his double-solution theory, and its relatively recent extensions through workers in stochastic electrodynamics.

show abstract

Section: The Faraday Levitatormentioning

confidence: 99%

Pilot-Wave Hydrodynamics

Bush

2015

Annu. Rev. Fluid Mech.

280

343

View full text Add to dashboard Cite

show abstract

“…To ensure precise timing, interrupts were disabled during critical portions of the Arduino timing code. This simple electrical system eliminates the need for a pulse generator (or function generator and amplifier) as is typically used in such devices (Yang et al 1997;Terwagne 2011;Castrejón-Pita et al 2008).…”

Section: Droplet Generator Descriptionmentioning

confidence: 99%

“…Many systems are designed for the generation of droplets smaller than 500 μm in diameter (Bransky et al 2009;Reis et al 2005; Meacham et al 2005; Perçin and KhuriYakub 2003;Cheng and Chandra 2003;Goghari and Chandra 2008;Chen and Basaran 2002;Dong et al 2006;Switzer 1991), below the desired range for the walking droplet experiments. We here describe a simple, repeatable DOD system designed specifically for this range, 0.5-1.3 mm (Protiere et al 2006;Moláček and Bush 2013).The present device is inspired by the design of Yang et al (1997) which ejects a droplet from a nozzle at the base of a fluid chamber by contracting a piezoelectric disk sealed to the top of the chamber. They used a fixed fluid reservoir and custom-fabricated glass nozzles.…”

mentioning

confidence: 99%

See 1 more Smart Citation

A low-cost, precise piezoelectric droplet-on-demand generator

2015

View full text Add to dashboard Cite

repeatable experiments require a reliable and precise droplet generation technique.Repeatable droplet generation is also required for a number of diverse applications ranging from inkjet printing to liquid crystal display manufacturing (Fan et al. 2008). A variety of droplet-on-demand (DOD) generators are described in the literature, but most existing designs are complex, costly, and difficult to adopt for use in other studies. Many systems are designed for the generation of droplets smaller than 500 μm in diameter (Bransky et al. 2009;Reis et al. 2005; Meacham et al. 2005; Perçin and KhuriYakub 2003;Cheng and Chandra 2003;Goghari and Chandra 2008;Chen and Basaran 2002;Dong et al. 2006;Switzer 1991), below the desired range for the walking droplet experiments. We here describe a simple, repeatable DOD system designed specifically for this range, 0.5-1.3 mm (Protiere et al. 2006;Moláček and Bush 2013).The present device is inspired by the design of Yang et al. (1997) which ejects a droplet from a nozzle at the base of a fluid chamber by contracting a piezoelectric disk sealed to the top of the chamber. They used a fixed fluid reservoir and custom-fabricated glass nozzles. For a range of nozzles 125-250 μm in diameter, they found an overall variability in size of <10 % of the measured droplet diameters (<500 μm). Their device has since been adopted for relatively large-scale drop (diameters >500 μm) generation (Mehdizadeh et al. 2004;Hawke 2006). Castrejón-Pita et al. (2008) used a loudspeaker to actuate their DOD generator and fabricated interchangeable nozzle plates ranging from 0.15 to 3.00 mm in diameter. A fluid reservoir of adjustable height allowed for control of the pressure at the nozzle outlet. For fixed control parameters, the device was stated to have an overall variability of droplet size of <5 %. Terwagne (2011) successfully designed and employed a DOD generator to produce droplets for their own bouncing Abstract We present the design of a piezoelectric droplet-on-demand generator capable of producing droplets of highly repeatable size ranging from 0.5 to 1.4 mm in diameter. The generator is low cost and simple to fabricate. We demonstrate the manner in which droplet diameter can be controlled through variation of the piezoelectric driving waveform parameters, outlet pressure, and nozzle diameter.

show abstract

“…There are two major geometries: tubular design [17][18][19] and flat plate design. 20,21 Each of them has its corresponding merits and demerits. In this paper, the piezoelectric dispenser is based on the idea of a flat plate design.…”

Section: Introductionmentioning

confidence: 99%

Piezoelectric dispenser based on a piezoelectric-metal-cavity actuator

Lam

Sun

Kwok

et al. 2009

Review of Scientific Instruments

View full text Add to dashboard Cite

A piezoelectric dispenser has been fabricated based on the idea of a piezoelectric-metal-cavity ͑PMC͒ actuator. The PMC actuator consists of a metal ring sandwiched between two identical piezoelectric unimorphs. The radial contraction of the piezoelectric ceramic is converted into a flextensional motion of the unimorph, causing a large flexural displacement in the center part of the actuator. With the PMC actuator as a fluid chamber, the large flexural actuation can be used to produce the displacement needed to eject fluid. By applying an appropriate voltage to the piezoelectric unimorphs, a drop-on-demand ejection of ink or water can be achieved. The efficiency of fluid ejection can be enhanced after installing a valve in the fluid chamber. With the simple PMC structure, the dispenser can be operated with a low driving voltage of 12-15 V.

show abstract

A simple piezoelectric droplet generator

Cited by 43 publications

References 6 publications

Pilot-Wave Hydrodynamics

Pilot-Wave Hydrodynamics

A low-cost, precise piezoelectric droplet-on-demand generator

Piezoelectric dispenser based on a piezoelectric-metal-cavity actuator

Contact Info

Product

Resources

About