Monitoring droplet ejection and landing in electrospray with electric current and acoustic emission

Kazunori Hakiai, Yuji Ishida, Tanemasa Asano

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Droplet ejection and landing phenomenon for electrospray was investigated using a simple capillary inkjet head and a planar-needle inkjet head. The waveform of electric current passing through between the inkjet head and a counter electrode was measured to investigate how a fine droplet is generated. The measurement of elastic waves using an acoustic emission (AE) sensor placed on the back of a counter electrode was carried out to detect the condition of droplet landing directly. The droplet ejection synchronizing with both a measured pulse of electric current and a generated elastic wave could be ascertained. Forming a single-peak pulse as the electric current was found to be a principal element in obtaining a very fine droplet with a volume of, for example, a few 10 fL. Moreover, a continuous drawing of minute dots was demonstrated on a conventional photopaper, and a fine dot line having a regulated pitch determined by the frequency of applied voltage and the shift velocity of the paper could be obtained synchronizing with both sensing methods.

Original languageEnglish
Pages (from-to)2279-2284
Number of pages6
JournalJapanese Journal of Applied Physics
Volume47
Issue number4 PART 1
DOIs
Publication statusPublished - Apr 18 2008

Fingerprint

landing
acoustic emission
Electric currents
Acoustic emissions
Landing
electric current
ejection
elastic waves
Monitoring
counters
Elastic waves
electrodes
pulses
needles
waveforms
Electrodes
Needles
shift
sensors
electric potential

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Monitoring droplet ejection and landing in electrospray with electric current and acoustic emission. / Hakiai, Kazunori; Ishida, Yuji; Asano, Tanemasa.

In: Japanese Journal of Applied Physics, Vol. 47, No. 4 PART 1, 18.04.2008, p. 2279-2284.

Research output: Contribution to journalArticle

Hakiai, Kazunori ; Ishida, Yuji ; Asano, Tanemasa. / Monitoring droplet ejection and landing in electrospray with electric current and acoustic emission. In: Japanese Journal of Applied Physics. 2008 ; Vol. 47, No. 4 PART 1. pp. 2279-2284.
@article{98cd0f11885541498595ea44d1e96636,
title = "Monitoring droplet ejection and landing in electrospray with electric current and acoustic emission",
abstract = "Droplet ejection and landing phenomenon for electrospray was investigated using a simple capillary inkjet head and a planar-needle inkjet head. The waveform of electric current passing through between the inkjet head and a counter electrode was measured to investigate how a fine droplet is generated. The measurement of elastic waves using an acoustic emission (AE) sensor placed on the back of a counter electrode was carried out to detect the condition of droplet landing directly. The droplet ejection synchronizing with both a measured pulse of electric current and a generated elastic wave could be ascertained. Forming a single-peak pulse as the electric current was found to be a principal element in obtaining a very fine droplet with a volume of, for example, a few 10 fL. Moreover, a continuous drawing of minute dots was demonstrated on a conventional photopaper, and a fine dot line having a regulated pitch determined by the frequency of applied voltage and the shift velocity of the paper could be obtained synchronizing with both sensing methods.",
author = "Kazunori Hakiai and Yuji Ishida and Tanemasa Asano",
year = "2008",
month = "4",
day = "18",
doi = "10.1143/JJAP.47.2279",
language = "English",
volume = "47",
pages = "2279--2284",
journal = "Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes",
issn = "0021-4922",
publisher = "Institute of Physics",
number = "4 PART 1",

}

TY - JOUR

T1 - Monitoring droplet ejection and landing in electrospray with electric current and acoustic emission

AU - Hakiai, Kazunori

AU - Ishida, Yuji

AU - Asano, Tanemasa

PY - 2008/4/18

Y1 - 2008/4/18

N2 - Droplet ejection and landing phenomenon for electrospray was investigated using a simple capillary inkjet head and a planar-needle inkjet head. The waveform of electric current passing through between the inkjet head and a counter electrode was measured to investigate how a fine droplet is generated. The measurement of elastic waves using an acoustic emission (AE) sensor placed on the back of a counter electrode was carried out to detect the condition of droplet landing directly. The droplet ejection synchronizing with both a measured pulse of electric current and a generated elastic wave could be ascertained. Forming a single-peak pulse as the electric current was found to be a principal element in obtaining a very fine droplet with a volume of, for example, a few 10 fL. Moreover, a continuous drawing of minute dots was demonstrated on a conventional photopaper, and a fine dot line having a regulated pitch determined by the frequency of applied voltage and the shift velocity of the paper could be obtained synchronizing with both sensing methods.

AB - Droplet ejection and landing phenomenon for electrospray was investigated using a simple capillary inkjet head and a planar-needle inkjet head. The waveform of electric current passing through between the inkjet head and a counter electrode was measured to investigate how a fine droplet is generated. The measurement of elastic waves using an acoustic emission (AE) sensor placed on the back of a counter electrode was carried out to detect the condition of droplet landing directly. The droplet ejection synchronizing with both a measured pulse of electric current and a generated elastic wave could be ascertained. Forming a single-peak pulse as the electric current was found to be a principal element in obtaining a very fine droplet with a volume of, for example, a few 10 fL. Moreover, a continuous drawing of minute dots was demonstrated on a conventional photopaper, and a fine dot line having a regulated pitch determined by the frequency of applied voltage and the shift velocity of the paper could be obtained synchronizing with both sensing methods.

UR - http://www.scopus.com/inward/record.url?scp=54249088462&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=54249088462&partnerID=8YFLogxK

U2 - 10.1143/JJAP.47.2279

DO - 10.1143/JJAP.47.2279

M3 - Article

AN - SCOPUS:54249088462

VL - 47

SP - 2279

EP - 2284

JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

SN - 0021-4922

IS - 4 PART 1

ER -