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Instrumentation & Measurement Magazine, IEEE

Issue 2 • Date April 2009

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Displaying Results 1 - 16 of 16
  • IEEE Instrumentation & Measurement Magazine - Front cover

    Publication Year: 2009 , Page(s): c1 - c1, c4
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  • Table of contents

    Publication Year: 2009 , Page(s): 2
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  • The importance of conferences [From the Editor's Bench]

    Publication Year: 2009 , Page(s): 4
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  • Looking into the past [President's Perspective]

    Publication Year: 2009 , Page(s): 6 - 7
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  • Design and test of a high-resolution acquisition system for marine seismology

    Publication Year: 2009 , Page(s): 8 - 15
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (4586 KB) |  | HTML iconHTML  

    Active and passive seismology require high-resolution, low-level signal acquisition. In both methods, the equipment most widely used to acquire seismic data in the marine environment is an ocean bottom seismometer (OBS). We designed and built a high-resolution acquisition system prototype for an OBS that is mainly used in active seismic experiments in which maps are generated of the width and material of ocean bottom sublayers. Other OBS system applications, in which the objective is to estimate the location and magnitude of an earthquake require higher autonomy. When an OBS is used in a permanent seafl oor observatory with no power supply limitation, it can generate tsunami alert signals to shore. View full abstract»

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  • Energy management in wireless sensor networks with energy-hungry sensors

    Publication Year: 2009 , Page(s): 16 - 23
    Cited by:  Papers (25)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (3605 KB) |  | HTML iconHTML  

    The energy problem in wireless sensor networks remains one of the major barriers preventing the complete exploitation of this technology. Sensor nodes are typically powered by batteries with a limited lifetime, and even when additional energy can be harvested from the external environment, it remains a limited resource to be consumed judiciously. Efficient energy management is thus a key requirement, with most strategies assuming that data acquisition consumes significantly less energy than data transmission. When this assumption does not hold, effective energy management strategies should include policies for an efficient use of energy-hungry sensors. View full abstract»

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  • Tutorial 19: Obtaining pitch/roll measurements in an extreme environment

    Publication Year: 2009 , Page(s): 24 - 30
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (3699 KB) |  | HTML iconHTML  

    Environmental conditions so severe as to pose exceptional design risk, sometimes called extreme or hostile environments, must be addressed by special design solutions. These solutions are often constrained by power, geometry, cost, and other factors, making it particularly difficult for the designer to obtain a solution that simultaneously satisfies performance and cost targets. This tutorial illustrates the design process for extreme environments using an example taken from the HDD industry. In this example, a small battery-operated instrumentation package - the HDD sonde - must accurately determine pitch and roll orientation in an operating environment characterized by continual, often violent, and essentially unconstrained shock and vibration loads. As the tutorial example illustrates, a satisfactory design solution requires careful component selection; multiple levels of shock and vibration isolation; careful pitch and roll calibrations over the entire anticipated operating temperature range; and time-varying signal processing to adjust the pitch and roll presentation dynamics according to task requirements at different times during the bore. The sonde's battery pack must be selected and designed to meet the same design constraints if operating requirements are to be satisfied at the system level. A commercial HDD sonde is capable of providing sub-degree pitch and roll accuracy despite the temperature changes and continuous shock and vibration typical of the underground construction environment. View full abstract»

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  • E-field ferroelectric sensors: Modeling and simulation [Instrumentation Notes]

    Publication Year: 2009 , Page(s): 31 - 37
    Cited by:  Papers (3)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (3310 KB) |  | HTML iconHTML  

    In this article, a novel approach to sensing static electric fields has been presented. The approach is extremely interesting due to the low cost of the technology and the simplicity of the architecture. The purpose of the article is to highlight the strategic role of behavioral models in the development and design of E-field sensors. It is important to observe that simulation results must always be supported by experimental evidence to confirm the predicted behaviors. A good solution to perform a reliable investigation, if allowed, is to model the main blocks of the system separately and at the same time to experimentally assess their real behavior to confirm theoretical expectations. View full abstract»

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  • Power factor correction: Can it lower your electric bill? [My Favorite Experiment]

    Publication Year: 2009 , Page(s): 38 - 39
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  • Sensor survey: Part 2 sensors and sensor networks in five years [Sensor Survey Results]

    Publication Year: 2009 , Page(s): 40 - 44
    Cited by:  Papers (4)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (2763 KB) |  | HTML iconHTML  

    This article shows where the survey respondents think sensors and sensor networks are going within the next 5 years. View full abstract»

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  • New products

    Publication Year: 2009 , Page(s): 46, 48 - 51
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  • IMS Technical Committee Reports 31-38 from the Spring of 2008

    Publication Year: 2009 , Page(s): 52 - 53
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  • IEEE I&M Society Technical Committee listing

    Publication Year: 2009 , Page(s): 54
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  • A Report on IMU 2008 The 1st Annual International Measurement University

    Publication Year: 2009 , Page(s): 56
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  • I2MTC 2009 Call for Attendance

    Publication Year: 2009 , Page(s): 58
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  • IEEE I2MTC 2009 Tutorials

    Publication Year: 2009 , Page(s): 59
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Aims & Scope

IEEE Instrumentation and Measurement Magazine contains applications-oriented and tutorial articles on topics in the broadly based areas of instrumentation system design and measurement techniques.

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
Prof. Wendy Van Moer

wendy.w.vanmoer@ieee.org
IandMMagazineEIC@ieee.org