relation: https://eprints.uet.vnu.edu.vn/eprints/id/eprint/1582/
title: Pressure sensor based on bipolar discharge corona configuration
creator: Dau, Thanh Van
creator: Bui, Thanh Tung
creator: Dinh, Xuan Thien
creator: Terebessy, Tibor
subject: Electronics and Communications
subject: Electronics and Computer Engineering
subject: ISI-indexed journals
description: We present a pressure sensing unit based on a unique corona discharge setup using symmetrical electrode arrangement with simultaneous positive and negative corona generation. The device generates stable corona discharge and enables reliable air pressure measurement in the range of 80-105 kPa, tested with five prototypes. The current-voltage characteristics of bipolar discharge system is analyzed in general form and three governing parameters, namely electrode geometry, electrode distance and discharge current, are studied in relation with absolute pressure. The sensors are driven with constant discharge current as low as 1 μA. The measured sensitivity is in good agreement with theoretical prediction and the sensor stability has been confirmed with 20-h continuous test without sensitivity deterioration. The sensitivity does not depend on the tested temperature range and its variation between devices is small, approximately ±3.0%. The advantage of the proposed system compared with similar corona-based constructions is its stable operation at low current with low power consumption and minimum electrode deterioration, which provides a cost effective and reliable solution
publisher: Elsevier
date: 2016-01-01
type: Article
type: PeerReviewed
format: application/pdf
language: en
identifier: https://eprints.uet.vnu.edu.vn/eprints/id/eprint/1582/1/Pressure%20sensor%20based%20on%20bipolar%20discharge%20corona%20configuration.pdf
identifier:   Dau, Thanh Van and Bui, Thanh Tung and Dinh, Xuan Thien and Terebessy, Tibor  (2016) Pressure sensor based on bipolar discharge corona configuration.  Sensors and Actuators A Physical .   pp. 81-90.  ISSN 0924-4247