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Instrumentation and Measurement Technology Conference, 1999. IMTC/99. Proceedings of the 16th IEEE

Date 24-26 May 1999

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  • Proceedings of the 16th IEEE Instrumentation and Measurement Technology Conference - Volume 3 [front matter]

    Publication Year: 1999, Page(s):i - xxxi
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    Freely Available from IEEE
  • Author's index

    Publication Year: 1999, Page(s):xxxii - xl
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    Freely Available from IEEE
  • A vibrating wheel micromachined gyroscope for commercial and automotive applications

    Publication Year: 1999, Page(s):1750 - 1754 vol.3
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (388 KB)

    Vibratory wheel micromachined gyroscopes with electrostatic drive and capacitance detection are presented. The angular rate measurement is performed with an exciting voltage of 10 Vpp(AC) plus 5 V(DC) in atmosphere. Resolution better than 3°/s has been recorded with self-drive oscillation. In this paper, the following topics are covered: the structure and fabrication of the micromachined gyros... View full abstract»

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  • Data fusion: from primary metrology to process measurement

    Publication Year: 1999, Page(s):1325 - 1329 vol.3
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (428 KB)

    In this paper, the author discusses a range of issues surrounding the use of data fusion in measurement science. Applications within NPL, looking at reducing uncertainty in measuring fundamental physical attributes, are considered NPL's role in the UK Faraday Scheme “INTErSECT” (Intelligent Sensors for Control Technologies) offers a different perspective on data fusion, where it is bei... View full abstract»

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  • Quartz crystals as remote sensors for tire pressure

    Publication Year: 1999, Page(s):1745 - 1749 vol.3
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (356 KB)

    The problem with tire pressure measurements is how to provide the sensor in the tire with energy. Current measurement systems use an active sensor with either a battery or a bulky energy transmission. Quartz resonators attached to an antenna perform better, because they can operate passively giving an echo to a stimulus. Strain influences the otherwise extremely stable natural frequency of a quart... View full abstract»

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  • Robust statistical analysis of vector network analyzer intercomparisons

    Publication Year: 1999, Page(s):1320 - 1324 vol.3
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (268 KB)

    Classical statistical methods that use the sample mean and standard deviation, under the assumption that the data follow a Gaussian distribution, are often applied to measurement intercomparisons. Consequently, spurious measurements, or outliers, lead to inaccuracies in the estimated mean and standard deviation, thus biasing the results of measurement comparisons. This paper describes the applicat... View full abstract»

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  • A robot-based burr measurement system for the automotive industry

    Publication Year: 1999, Page(s):1740 - 1744 vol.3
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (392 KB)

    Burrs are often difficult to detect and measure because of their intrinsic variability in shape and dimension. No automotive standard had been established about their acceptable dimensions and measurement techniques for sheet steel products. For the automotive industry, even burrs of the size of 100 μm are perceived as damaging because of their dramatic impact upon panel corrosion resistance an... View full abstract»

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  • A new adaptive analog test and diagnosis system

    Publication Year: 1999, Page(s):1397 - 1402 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (504 KB)

    This paper presents a low cost analog test system with diagnosis capabilities. The tester is able to detect faults in any linear circuit by learning a reference plant behavior in a first step, and comparing this behavior against the output of the circuit under test in a second step. For a faulty circuit, a third step takes place to locate the fault. The diagnosis method consists on injecting proba... View full abstract»

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  • ANAMET comparison of complex scattering coefficient measurements of microwave adaptors

    Publication Year: 1999, Page(s):1316 - 1319 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (260 KB)

    This paper presents results obtained from a recent exercise to compare measurements of the complex scattering coefficients of electrical adaptors at microwave frequencies. The results obtained by the six laboratories participating in the exercise are summarised in terms of the between laboratory reproducibility. Multivariate robust statistical techniques are used to obtain summary statistics for t... View full abstract»

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  • The effect of electric-field bending on the linearity of capacitive position sensors with various electrode structures

    Publication Year: 1999, Page(s):1348 - 1351 vol.3
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (236 KB)

    Three-layered electrode structures are often employed in multiple-electrode capacitive position sensors. Even when advanced algorithms and well-designed guarding electrodes are used, the electric-field-bending effect is still one of the major contributors to the nonlinearity of capacitive position sensors. In this paper, the effects of electric-field bending on linearities of five capacitive linea... View full abstract»

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  • Accuracy limit of high precision stochastic watt-hour meter

    Publication Year: 1999, Page(s):1710 - 1713 vol.3
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (248 KB)

    Paper deals with the practical application of newly developed stochastic watt-hour meter. The limit of its precision is analysed theoretically, via simulation, and experiments. The precision of 0.0062% is achieved in the laboratory experiment. Field experiment also confirms good application properties of the device View full abstract»

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  • Photoelectric methods of potential barrier heights determination in the MOS structure

    Publication Year: 1999, Page(s):1934 - 1937 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (264 KB)

    Considerable differences between the values of Al-SiO2-Si structure barrier heights reported in the literature may be at least partly explained by the imperfections of the measurement methods and the lack of a sufficiently accurate method of the verification of the obtained results. The most accurate, photoelectric method of contact potential difference determination is proposed in this... View full abstract»

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  • IVD modulus error measurement

    Publication Year: 1999, Page(s):1693 - 1695 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (248 KB)

    The calibration method of inductive voltage divider (IVD) designed for application to AC/DC transfer is described. Algorithms minimizing influence of the error of RMS/DC converter are given. The method presented makes it possible to find the IVD modulus error in the frequency range of up to 1 MHz View full abstract»

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  • A multimedia networking-based approach to the development of distributed virtual instruments

    Publication Year: 1999, Page(s):1863 - 1867 vol.3
    Cited by:  Papers (5)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (496 KB)

    This paper proposes a novel approach centered on the multimedia internetworking to develop distributed virtual instruments. Multimedia internetworking refers to network infrastructures, protocols, models, applications and techniques being currently deployed over the Internet to support multimedia applications, e.g., videoconferencing, VOD, shared workspaces. It is applied to broaden the concept of... View full abstract»

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  • A new UWB-principle for sensor-array application

    Publication Year: 1999, Page(s):1390 - 1395 vol.3
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (644 KB)

    The paper presents a simple principle to measure the transfer function or rather the impulse response of ultrawideband systems. The main aspects of the new measurement head are its flexibility of application, its measurement speed and the possibility of a full circuit integration, which results in small, robust, lightweight and low cost devices with low power consumption. Beside this, the method a... View full abstract»

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  • Neural-network-based method of correction in a nonlinear dynamic measuring system

    Publication Year: 1999, Page(s):1641 - 1646 vol.3
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (488 KB)

    This paper addresses the problem of improving the quality of measurement calibration and reconstruction using an artificial neural network (ANN) for a linear and nonlinear dynamic measuring system. The reconstruction consists of a regularized inversion of the operator of conversion, i.e., finding an operator of reconstruction. A recurrent multilayered neural network structure is used to model the ... View full abstract»

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  • Measurement requirements and front-end design rules for gamma-ray tracking in large-volume germanium detectors through pulse-shape analysis

    Publication Year: 1999, Page(s):1916 - 1920 vol.3
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (352 KB)

    In this paper we address the design of a mixed analogue-digital processor for pulse-shape analysis of signals delivered by large volume High-Purity-Germanium (HPGe) detectors for gamma-ray spectroscopy. The information to be extracted from pulse-shape analysis is the position of the interaction of the γ photon inside the detector. We discuss the structure of the measurement apparatus and the... View full abstract»

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  • Temperature measurement by multi-fiber optical sensor

    Publication Year: 1999, Page(s):1526 - 1530 vol.3
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (352 KB)

    The paper deals with a new multi-fiber temperature sensor, based on the relationship between temperature and the refractive index of a suitable reference liquid, substituted to a part of the fiber clad. The sensing element, the microcontroller-based hardware, and the measurement software are described. The results of the rests carried out in the range 40°C-110°C showed good prototype accur... View full abstract»

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  • Dynamic of non-uniform A/D conversion

    Publication Year: 1999, Page(s):1667 - 1672 vol.3
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (312 KB)

    Numerical value of measured quantity in technical system has uncertainty value-band depending on the dynamic behaviour of measured object and measurement instrumentation with the comparison references and logical structures. The estimation of difference between two levels is possible with at least two sampling pulses and the dynamic error is proportional to that difference with addition of some co... View full abstract»

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  • Seismic accelerometer

    Publication Year: 1999, Page(s):1342 - 1346 vol.3
    Cited by:  Papers (3)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (304 KB)

    The design, model, implementation, and test of a seismic accelerometer is presented in this paper. The sensing element is a flexural-type piezoelectric ceramic, known as bimorph. The analytical model of this transducer was developed and validated experimentally. The natural frequency (f0), the useful flat range, sensitivity, and cutoff frequencies at the lower and upper end of the devic... View full abstract»

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  • Optimum measurement of ADC code transitions using a feedback loop

    Publication Year: 1999, Page(s):1415 - 1420 vol.3
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (500 KB)

    Code transitions on high speed analog to digital converters have been measured for many years using a feedback loop. The dynamics of the settling of the feedback loop are strongly dependent on the noise of the converter, and the step size of the feedback loop. An analysis of the response of the feedback loop is described and the optimum parameters of the loop are developed. The speed of measuremen... View full abstract»

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  • Knock acoustic signal estimation using parametric inversion

    Publication Year: 1999, Page(s):1734 - 1739 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (404 KB)

    Knock on spark ignition engines goes against car manufacturers efforts to reduce fuel consumption as well as exhaust gas emissions. This paper develops a signal processing method to quantify knock. After discussing some classical techniques of knock energy estimation, an acoustical measurement technique is presented. An original signal processing method based on a parametric comportmental model fo... View full abstract»

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  • Mapping error of simplified dynamic models in electrical metrology

    Publication Year: 1999, Page(s):1704 - 1709 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (304 KB)

    The paper presents a theory and its practical application in the process of the determination of the mapping error of simplified dynamic models. This mapping is expressed by means of the integral-square-error criterion. A special calculation algorithm showing how to compute the maximum value of this criterion is discussed and presented in detail. The paper shows also the method of a synthesis of a... View full abstract»

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  • Multifunctional system for photometrical measurements of semiconductor structures

    Publication Year: 1999, Page(s):1930 - 1933 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (580 KB)

    In the paper a new multifunctional system for photometrical measurements of semiconductor structures is presented. The system is able to measure very accurately photocurrent as low as 100 aA. The measured structure can be stimulated by DC voltage and light having defined power and wavelength. The software of the system cooperates with databases, which enables repetition of completed previous measu... View full abstract»

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  • Digital methods for very accurate ultrasonic sensor measurements

    Publication Year: 1999, Page(s):1687 - 1692 vol.3
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (448 KB)

    Digital signal processing techniques for obtaining high accuracy in ultrasonic distance measurements are presented. The proposed methodologies employ a suitable time frequency representation (Wavelet Transform or Short Time Fourier Transform) to extract the envelope of the reflected pulse echo, together with a suitable pulse detection algorithm (threshold or correlation) for time-of-flight estimat... View full abstract»

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