Miniaturized corona flow sensor operating in drift mobility increment mode for low flow velocity measurement

Beelee Chua, James Jungho Pak

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

We demonstrated low flow velocity measurement with a miniaturized corona flow sensor operating in drift mobility increment (DMI) mode. The corona flow sensor consisted of a corona flow probe residing in a small diameter flow tube. The corona flow probe had an electrode gap of ∼700 μm and was constructed with 50 μm stainless wire for cathode and nickel plated steel for anode. As evident in both the analytical and experimental corona current versus applied voltage curves, the corona current varied with the ozone concentration in the drift region. This also allowed the corona current to be responsive to air flow. The experimental corona current versus flow velocity trend was shown to be in agreement with the analytical trend. At an applied voltage of 1800 V, the corona flow sensor was able to measure flow velocities from 4.7 to 94.3 mm/s with a resolution of ∼5 mm/s. Three configurations consisting of the corona flow probe in different orientation with respect to the flow direction were investigated. We also showed that the sensitivity and operating range could potentially be tuned by adjusting the applied voltage. Finally, the significance and limitations of the results were also discussed.

Original languageEnglish
Pages (from-to)65-71
Number of pages7
JournalSensors and Actuators, A: Physical
Volume224
DOIs
Publication statusPublished - 2015 Apr 1

Fingerprint

Flow measurement
velocity measurement
Flow velocity
Velocity measurement
coronas
low speed
flow velocity
sensors
Sensors
Electric potential
Ozone
Steel
Pipe flow
Nickel
Anodes
Cathodes
Wire
Electrodes
probes
Air

Keywords

  • Corona flow sensor
  • Drift mobility increment
  • Low flow velocity
  • Ozone

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials
  • Metals and Alloys
  • Surfaces, Coatings and Films
  • Instrumentation

Cite this

@article{13c8f9e199134b2299414533496e1c49,
title = "Miniaturized corona flow sensor operating in drift mobility increment mode for low flow velocity measurement",
abstract = "We demonstrated low flow velocity measurement with a miniaturized corona flow sensor operating in drift mobility increment (DMI) mode. The corona flow sensor consisted of a corona flow probe residing in a small diameter flow tube. The corona flow probe had an electrode gap of ∼700 μm and was constructed with 50 μm stainless wire for cathode and nickel plated steel for anode. As evident in both the analytical and experimental corona current versus applied voltage curves, the corona current varied with the ozone concentration in the drift region. This also allowed the corona current to be responsive to air flow. The experimental corona current versus flow velocity trend was shown to be in agreement with the analytical trend. At an applied voltage of 1800 V, the corona flow sensor was able to measure flow velocities from 4.7 to 94.3 mm/s with a resolution of ∼5 mm/s. Three configurations consisting of the corona flow probe in different orientation with respect to the flow direction were investigated. We also showed that the sensitivity and operating range could potentially be tuned by adjusting the applied voltage. Finally, the significance and limitations of the results were also discussed.",
keywords = "Corona flow sensor, Drift mobility increment, Low flow velocity, Ozone",
author = "Beelee Chua and Pak, {James Jungho}",
year = "2015",
month = "4",
day = "1",
doi = "10.1016/j.sna.2015.01.022",
language = "English",
volume = "224",
pages = "65--71",
journal = "Sensors and Actuators, A: Physical",
issn = "0924-4247",
publisher = "Elsevier",

}

TY - JOUR

T1 - Miniaturized corona flow sensor operating in drift mobility increment mode for low flow velocity measurement

AU - Chua, Beelee

AU - Pak, James Jungho

PY - 2015/4/1

Y1 - 2015/4/1

N2 - We demonstrated low flow velocity measurement with a miniaturized corona flow sensor operating in drift mobility increment (DMI) mode. The corona flow sensor consisted of a corona flow probe residing in a small diameter flow tube. The corona flow probe had an electrode gap of ∼700 μm and was constructed with 50 μm stainless wire for cathode and nickel plated steel for anode. As evident in both the analytical and experimental corona current versus applied voltage curves, the corona current varied with the ozone concentration in the drift region. This also allowed the corona current to be responsive to air flow. The experimental corona current versus flow velocity trend was shown to be in agreement with the analytical trend. At an applied voltage of 1800 V, the corona flow sensor was able to measure flow velocities from 4.7 to 94.3 mm/s with a resolution of ∼5 mm/s. Three configurations consisting of the corona flow probe in different orientation with respect to the flow direction were investigated. We also showed that the sensitivity and operating range could potentially be tuned by adjusting the applied voltage. Finally, the significance and limitations of the results were also discussed.

AB - We demonstrated low flow velocity measurement with a miniaturized corona flow sensor operating in drift mobility increment (DMI) mode. The corona flow sensor consisted of a corona flow probe residing in a small diameter flow tube. The corona flow probe had an electrode gap of ∼700 μm and was constructed with 50 μm stainless wire for cathode and nickel plated steel for anode. As evident in both the analytical and experimental corona current versus applied voltage curves, the corona current varied with the ozone concentration in the drift region. This also allowed the corona current to be responsive to air flow. The experimental corona current versus flow velocity trend was shown to be in agreement with the analytical trend. At an applied voltage of 1800 V, the corona flow sensor was able to measure flow velocities from 4.7 to 94.3 mm/s with a resolution of ∼5 mm/s. Three configurations consisting of the corona flow probe in different orientation with respect to the flow direction were investigated. We also showed that the sensitivity and operating range could potentially be tuned by adjusting the applied voltage. Finally, the significance and limitations of the results were also discussed.

KW - Corona flow sensor

KW - Drift mobility increment

KW - Low flow velocity

KW - Ozone

UR - http://www.scopus.com/inward/record.url?scp=84923195274&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84923195274&partnerID=8YFLogxK

U2 - 10.1016/j.sna.2015.01.022

DO - 10.1016/j.sna.2015.01.022

M3 - Article

AN - SCOPUS:84923195274

VL - 224

SP - 65

EP - 71

JO - Sensors and Actuators, A: Physical

JF - Sensors and Actuators, A: Physical

SN - 0924-4247

ER -