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Article
Publication date: 19 June 2017

Yixiang Bian, Can He, Kaixuan Sun, Longchao Dai, Hui Shen, Hong Jin and Junjie Gong

The purpose of this paper is to design and fabricate a three-dimensional (3D) bionic airflow sensing array made of two multi-electrode piezoelectric metal-core fibers…

Abstract

Purpose

The purpose of this paper is to design and fabricate a three-dimensional (3D) bionic airflow sensing array made of two multi-electrode piezoelectric metal-core fibers (MPMFs), inspired by the structure of a cricket’s highly sensitive airflow receptor (consisting of two cerci).

Design/methodology/approach

A metal core was positioned at the center of an MPMF and surrounded by a hollow piezoceramic cylinder. Four thin metal films were spray-coated symmetrically on the surface of the fiber that could be used as two pairs of sensor electrodes.

Findings

In 3D space, four output signals of the two MPMFs arrays can form three “8”-shaped spheres. Similarly, the sensing signals for the same airflow are located on a spherical surface.

Originality/value

Two MPMF arrays are sufficient to detect the speed and direction of airflow in all three dimensions.

Details

Sensor Review, vol. 37 no. 3
Type: Research Article
ISSN: 0260-2288

Keywords

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Article
Publication date: 26 January 2010

Robert Bogue

The purpose of this paper is to describe the use and benefits of thermal mass flow sensing on a new Chinese power plant.

Abstract

Purpose

The purpose of this paper is to describe the use and benefits of thermal mass flow sensing on a new Chinese power plant.

Design/methodology/approach

The rationale behind the use and application of thermal mass flow sensors on a coal‐fired power plant is described and the benefits derived are identified.

Findings

Use of thermal mass airflow sensors have allowed improved control of the plant's combustion process, leading to greater efficiency, reduced emissions and lower maintenance requirements.

Originality/value

This paper illustrates how close measurement and control of the airflow led to improved operation of a coal‐fired power plant.

Details

Sensor Review, vol. 30 no. 1
Type: Research Article
ISSN: 0260-2288

Keywords

Content available
Article
Publication date: 1 September 2005

Abstract

Details

Sensor Review, vol. 25 no. 3
Type: Research Article
ISSN: 0260-2288

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Article
Publication date: 22 May 2007

Gojko Nikolić and Goran Čubrić

This paper seeks to pursue the research of different types of sensors suitable for positioning edge accuracy of textile material.

Abstract

Purpose

This paper seeks to pursue the research of different types of sensors suitable for positioning edge accuracy of textile material.

Design/methodology/approach

A measuring device is used to install different types of sensors on the slide holders and to change their interspace as well as the space between the sensors and textile fabric.

Findings

The new measuring equipment has been established.

Research limitations/implications

Only the results of woven fabric measurement are analyzed in this paper, while the results of knitted and nonwoven fabric measurement will be elaborated in the future papers.

Originality/value

The measuring equipment is original.

Details

International Journal of Clothing Science and Technology, vol. 19 no. 3/4
Type: Research Article
ISSN: 0955-6222

Keywords

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Article
Publication date: 1 September 2006

S. Aleksić Obrad, Nikolić M. Pantelija and Paraskevopoulos M. Konstantinos

The aim of this paper is to investigate the behavior of a new nanometric particle NTC thermistor paste and thick films obtained by screen printing.

Abstract

Purpose

The aim of this paper is to investigate the behavior of a new nanometric particle NTC thermistor paste and thick films obtained by screen printing.

Design/methodology/approach

Nanometric powder of NTC thermistors based on complex spinel was made by calcination of an oxide mixture and ultra fast ball milling. Characterization of the new powder was done on compacts sintered in different conditions. Segmented thermistors were screen printed on alumina substrata, dried and fired in a conveyor furnace at 850°C/10 min. Segmented thermistors were indirectly heated by a glass sealed heater placed between them in the middle. The system was put in a tube with a regulated air flow to serve as a volume thermistor sensor based on heat loss.

Findings

The sintered thick film samples and NTC powder compacts measurements could help in choosing the optimal technology conditions during the production of NTC devices. The NTC segmented thermistors were suitable both for heated sensors and self heated sensors.

Practical implications

Low temperature thick film thermistor pastes based on nanometer powder of complex spinel are of interest due to their importance in sensor applications.

Originality/value

This work predicts that high temperature pastes of the same material can be realized with characteristics superior to those of low temperature paste such as NTC 3K3 or similar.

Details

Microelectronics International, vol. 23 no. 3
Type: Research Article
ISSN: 1356-5362

Keywords

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Article
Publication date: 23 November 2010

Dimitri V. Zarzhitsky, Diana F. Spears and David R. Thayer

The purpose of this paper is to describe a multi‐robot solution to the problem of chemical source localization, in which a team of inexpensive, simple vehicles with…

Abstract

Purpose

The purpose of this paper is to describe a multi‐robot solution to the problem of chemical source localization, in which a team of inexpensive, simple vehicles with short‐range, low‐power sensing, communication, and processing capabilities trace a chemical plume to its source emitter

Design/methodology/approach

The source localization problem is analyzed using computational fluid dynamics simulations of airborne chemical plumes. The analysis is divided into two parts consisting of two large experiments each: the first part focuses on the issues of collaborative control, and the second part demonstrates how task performance is affected by the number of collaborating robots. Each experiment tests a key aspect of the problem, e.g. effects of obstacles, and defines performance metrics that help capture important characteristics of each solution.

Findings

The new empirical simulations confirmed previous theoretical predictions: a physics‐based approach is more effective than the biologically inspired methods in meeting the objectives of the plume‐tracing mission. This gain in performance is consistent across a variety of plume and environmental conditions. This work shows that high success rate can be achieved by robots using strictly local information and a fully decentralized, fault‐tolerant, and reactive control algorithm.

Originality/value

This is the first paper to compare a physics‐based approach against the leading alternatives for chemical plume tracing under a wide variety of fluid conditions and performance metrics. This is also the first presentation of the algorithms showing the specific mechanisms employed to achieve superior performance, including the underlying fluid and other physics principles and their numerical implementation, and the mechanisms that allow the practitioner to duplicate the outstanding performance of this approach under conditions of many robots navigating through obstacle‐dense environments.

Details

International Journal of Intelligent Computing and Cybernetics, vol. 3 no. 4
Type: Research Article
ISSN: 1756-378X

Keywords

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Article
Publication date: 1 January 1992

Allen‐Bradley recently announced a new addition to the company's CVIM vision input module offering. The Allen‐Bradley optical character recognition package, OCR‐PAK…

Abstract

Allen‐Bradley recently announced a new addition to the company's CVIM vision input module offering. The Allen‐Bradley optical character recognition package, OCR‐PAK, allows the CVIM module to read character strings within an image for product identification.

Details

Sensor Review, vol. 12 no. 1
Type: Research Article
ISSN: 0260-2288

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Article
Publication date: 1 January 1989

Peter Adrian and Emmanuel Vella

Experts claim over 50% of sensor applications are currently served by silicon‐sensor technology.

Abstract

Experts claim over 50% of sensor applications are currently served by silicon‐sensor technology.

Details

Sensor Review, vol. 9 no. 1
Type: Research Article
ISSN: 0260-2288

Content available
Article
Publication date: 26 January 2010

Abstract

Details

Sensor Review, vol. 30 no. 1
Type: Research Article
ISSN: 0260-2288

Content available
Article
Publication date: 13 September 2011

Beshah Ayalew

Abstract

Details

Sensor Review, vol. 31 no. 4
Type: Research Article
ISSN: 0260-2288

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