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Instrumentation and Measurement Technology Conference, 2001. IMTC 2001. Proceedings of the 18th IEEE

Date 21-23 May 2001

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  • IMTC/2001 Proceedings of the 18th IEEE Instrumentation and Measurement Technology Conference [front matter]

    Publication Year: 2001, Page(s):i - xlvi
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    Freely Available from IEEE
  • Author's index

    Publication Year: 2001, Page(s):xlvii - lvii
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  • Characterization techniques for temperature-dependent experimental analysis of microwave transistors

    Publication Year: 2001, Page(s):1893 - 1896 vol.3
    Cited by:  Papers (3)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (356 KB) | HTML iconHTML

    In our research work the effects of temperature on DC behavior, small signal and noise performance of several low-noise transistors at microwave frequencies were investigated by means of different experimental systems down to cryogenic levels. We here present the results of such an extensive investigation together with the details of the experimental procedures followed. The on-wafer cooling set-u... View full abstract»

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  • Fluorescent paint for roadway lane-markers

    Publication Year: 2001, Page(s):2055 - 2060 vol.3
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (596 KB) | HTML iconHTML

    As a compromise between unaided and fully automated driving, we have been investigating the concept of “sensor friendly highways and roadways”. In this paper we report our work in this context with fluorescent paint for roadway lane-marking lines. The approach we envision is to add one or more fluorescent pigments to the lane-marking paint, or possibly to the retro-reflective glass bea... View full abstract»

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  • A switched-current sample and hold circuit for low frequency applications

    Publication Year: 2001, Page(s):2062 - 2065 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (240 KB) | HTML iconHTML

    A sample and hold circuit using the 0.6 μm technology for low frequency application is presented. This circuit is based on a specific memory base cell that reduces the error caused by the output conductance. It works with a 3.3 V supply voltage, offers high-resolution and low power dissipation. Simulations results presented a -77.6 dB harmonic distortion and a 1.98 mW power dissipation for a 10... View full abstract»

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  • Standard framework for IEEE-STD-1241 in MATLAB [ADC testing]

    Publication Year: 2001, Page(s):1847 - 1852 vol.3
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1120 KB) | HTML iconHTML

    The approval of the 1241 standard means that all users and manufacturers of analog-to-digital converters should use the terminology and test methods described in the standard. However, it is not an easy task to leave an already developed, tested and used environment for a new one. To inspire the users to use the standard, a program has been developed, which realizes most of the described algorithm... View full abstract»

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  • BIT for intelligent system design and condition monitoring

    Publication Year: 2001, Page(s):1519 - 1524 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (540 KB) | HTML iconHTML

    The rapid growth of process automation requires that more efficient and reliable system testing and fault diagnosis techniques be developed to reduce machine down time and enhance productivity. As a design philosophy built-in-test (BIT) is receiving increasing attention. This paper presents an overview of diverse BIT applications in several areas of industry, including manufacturing, aerospace, an... View full abstract»

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  • A frame-level measurement apparatus for performance testing of ATM equipment

    Publication Year: 2001, Page(s):1630 - 1635 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (492 KB) | HTML iconHTML

    Performance testing of ATM equipment is here dealt with. In particular, the attention is paid to frame-level metrics, recently proposed by the ATM forum because of their suitability to reflect user-perceived performance better than traditional cell-level metrics. Following the suggestions of the ATM forum, more and more network engineers and production managers are nowadays interested in these met... View full abstract»

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  • Soft fault diagnosis in analog electronic circuits: sensitivity analysis by randomized algorithms

    Publication Year: 2001, Page(s):1592 - 1595 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (300 KB) | HTML iconHTML

    In this paper a fault diagnosis technique for electronic analog circuits is described. Diagnosis is obtained by comparing input-output measurements with examples contained in a fault dictionary, by means of a neural classifier. A harmonic analysis is used, i.e. the test input stimuli are sinusoidal waves. A novel method for optimizing the fault dictionary construction is proposed. In particular, t... View full abstract»

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  • Phase-spectrum analysis for detection of ADC hysteretic distortion

    Publication Year: 2001, Page(s):1677 - 1683 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (500 KB) | HTML iconHTML

    A phase spectrum-based approach to dynamic characterization of hysteretic analog-to-digital converters is proposed. Analytical relationships between hysteresis of the dynamic transfer characteristic and out-of-phase components of output Fourier spectrum are given. On this basis, an error model and a related figure of merit for dynamic hysteresis are presented. Results of numerical characterization... View full abstract»

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  • Calculation of correction factors to compensate for the reference electric field nonuniformity

    Publication Year: 2001, Page(s):1736 - 1739 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (412 KB) | HTML iconHTML

    The inaccuracy of the reference electric field nonuniformity assessment is identified, which unnecessarily increases the measurement uncertainty of standardized systems for electric field-meters calibration, making them inadequate for calibration of modern, precision field-meters. By means of numerical field calculation, the correction factors are computed which allow compensation for the referenc... View full abstract»

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  • A fuzzy symbolic approach to formalize sensory measurements an application to a comfort sensor

    Publication Year: 2001, Page(s):1413 - 1417 vol.3
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (424 KB) | HTML iconHTML

    This paper deals with a fuzzy modeling of comfort perception. The aim of the presented sensor is to reproduce the linguistic evaluation provided by a human being from the aggregation of the relevant physical measurements such as temperature, humidity, luminosity. The fuzzy symbolic method proposed enables to introduce easily new measurements in order to refine the comfort definition in a way adapt... View full abstract»

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  • A new binary inductive divider comparator system for measuring high-voltage thermal converters

    Publication Year: 2001, Page(s):2145 - 2148 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (264 KB) | HTML iconHTML

    National Measurement Institutes have traditionally used bootstrapping or build-up techniques to determine the ac-dc difference of high-voltage thermal converters (HVTCs) in terms of the ac-dc difference of lower-voltage converters. We describe a method of determining the ac-dc difference of HVTCs that is independent of the build-up process. A description of the system and technique is given, and p... View full abstract»

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  • ADC testing with IEEE Std 1241-2000

    Publication Year: 2001, Page(s):1986 - 1991 vol.3
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1468 KB) | HTML iconHTML

    While the new IEEE standard for ADC terminology and testing builds on IEEE Std 1057-1994 (for digitizing waveform recorders), 1241 relies strongly on frequency domain techniques. Frequency domain techniques tend to be favored in manufacturing because two records of data can produce a robust characterization of the ADC. Processing a small data record (e.g. 2-8 K sample) with an FFT yields SINAD, SN... View full abstract»

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  • Extending the servo-loop for ADC transition level measurements under dynamic input conditions

    Publication Year: 2001, Page(s):2031 - 2036 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (476 KB) | HTML iconHTML

    For high-resolution Nyquist-rate ADCs, testing the linearity of the transfer characteristic at all-codes becomes very time consuming as the number of codes increases exponentially with resolution. Previously, a model-based test approach has been proposed based on measurements using a servo-loop. With the servo-loop, the ADC linearity is tested under static input conditions by measuring only a smal... View full abstract»

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  • A statistical procedure for analyzing stray losses in induction motors from measurement

    Publication Year: 2001, Page(s):1801 - 1806 vol.3
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (400 KB) | HTML iconHTML

    Stray load losses have significant detrimental effects on the performance of an induction motor. Machine designers have been unable to agree upon a consistent and reliable method for predicting these losses. This lack of agreement leads many designers to ignore stray load losses or to assume them to be equal to a fixed percentage, 0.5% of the input power. Numerous studies have been presented to su... View full abstract»

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  • Advances in model-integrated computing

    Publication Year: 2001, Page(s):1660 - 1664 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (492 KB) | HTML iconHTML

    The paper discusses challenges and new directions in integrated system and software design. The primary focus is embedded computing. The first topic describes methods and tools for the specification and construction of multiple-view, domain-specific modeling languages and environments. The second topic focuses on tool integration technologies. The third topic discusses the role of model-based gene... View full abstract»

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  • Variance of the cumulative histogram of ADCs due to frequency errors

    Publication Year: 2001, Page(s):2021 - 2026 vol.3
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (428 KB) | HTML iconHTML

    The variance in the number of counts of the cumulative histogram, used for the characterization of ADCs with the histogram method, is calculated without any restrictions regarding frequency errors on the stimulus and sampling signals, number of periods periods of the stimulus signal and number of samples. This makes the approach here presented more general than the traditional one, used in IEEE 10... View full abstract»

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  • Sub-picosecond aperture uncertainty measurements

    Publication Year: 2001, Page(s):1709 - 1713 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (424 KB) | HTML iconHTML

    Sub-picosecond aperture uncertainty measurement is nowadays a challenge in the test of state-of-the-art high-speed high-resolution A/D converters. This work describes the existing techniques and analyzes the limits in the measurement accuracy obtainable with the double-channel techniques and the instrumentation available today. Preliminary experiment results are provided View full abstract»

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  • Embedded controller software and algorithm development tool

    Publication Year: 2001, Page(s):2105 - 2110 vol.3
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (584 KB) | HTML iconHTML

    This paper describes the design and implementation of a flexible tool for use in developing embedded software and software algorithms. This tool is new and novel because of its capability of monitoring variables used in multiple internal processes (tasks) inside a modern micro-controller while simultaneously acquiring digital and analog data from a physical system that the micro-controller is conn... View full abstract»

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  • A new bidimensional histogram for the dynamic characterization of ADCs

    Publication Year: 2001, Page(s):2015 - 2020 vol.3
    Cited by:  Papers (2)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (448 KB) | HTML iconHTML

    A bidimensional histogram based on a dual-tone signal is proposed for testing analog-to-digital converters in the phase plane (output code, input signal slope). The bidimensional histogram of the actual code occurrences in the phase plane is compared with the ideal dual-tone probability distribution function in order to derive the actual transfer characteristic. With respect to the phase plane tes... View full abstract»

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  • An image enhancement technique combining sharpening and noise reduction

    Publication Year: 2001, Page(s):1921 - 1924 vol.3
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (384 KB) | HTML iconHTML

    A new approach to contrast enhancement of image data is presented. The proposed method is based on a multiple-output recursive system that adopts fuzzy models in order to prevent the noise increase during the sharpening of the image details. Key features of the proposed technique are better performance than classical methods in the enhancement of images corrupted by Gaussian noise and no complicat... View full abstract»

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  • Compensation of environmental effects in bulk optical sensors

    Publication Year: 2001, Page(s):1455 - 1458 vol.3
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (256 KB) | HTML iconHTML

    The paper presents a theoretical analysis and experimental verification of the environmental, in particular temperature effects in electro-optic sensor with cubic and naturally birefringent sensing crystals. New compensation methods, based on an optimal optical alignment, have been proposed and experimentally verified View full abstract»

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  • Analog signal processing in an AC electromagnetic flowmeter

    Publication Year: 2001, Page(s):2136 - 2139 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (292 KB) | HTML iconHTML

    AC electromagnetic flowmeters yield a low-frequency signal whose amplitude is proportional to the average fluid velocity. Typically, the signal amplitude can be below 1 mV and suffers a strong interference from the coils that create the driving magnetic field. This paper provides a novel circuit design to amplify and demodulate the voltage picked up by the electrodes and to minimize interference. ... View full abstract»

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  • Structural dynamics modeling using modal analysis: applications, trends and challenges

    Publication Year: 2001, Page(s):1502 - 1509 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (816 KB) | HTML iconHTML

    System identification plays a crucial role in structural dynamics and vibro-acoustic system optimization. The followed approach is based on the “Modal Analysis” concept. The Eigenmodes of the system model can be visualized and allow a direct physical interpretation. Using the modal models, design improvements can be predicted and the structure optimized. The present paper not only revi... View full abstract»

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