By Topic

Conference Proceedings. 10th Anniversary. IMTC/94. Advanced Technologies in I & M. 1994 IEEE Instrumentation and Measurement Technolgy Conference (Cat. No.94CH3424-9)

10-12 May 1994

Filter Results

Displaying Results 1 - 25 of 395
  • Modelling measurement technical problems with constraints

    Publication Year: 1994, Page(s):94 - 97 vol.1
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (384 KB)

    Interdisciplinary applications exposed new interesting, but difficult problems in the field of measurement. Such applications put emphasis on the automation of the measurement process on the whole. The analysis of how the experiments are planned, controlled, evaluated, etc. Brought into focus the question of how well the expert knowledge related to the measurement can be represented and utilised i... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Total measurement action program in electronics enterprises

    Publication Year: 1994, Page(s):98 - 101 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (340 KB)

    The roles of measurement activities in manufacturing enterprises of the assume fragmentary forms of operation such as inspection by measurement after completion, control of accuracy of measuring instruments used for inspection, development of measuring methods or instruments intended for new evaluation, etc., are discussed. The Total Measurement Action Program (TMAP), which was built up for the pu... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 1.6 μm band coherent optical time-domain reflectometry

    Publication Year: 1994, Page(s):102 - 105 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (232 KB)

    1.6 μm band optical time-domain reflectometry (OTDR) using a heterodyne detection technique is reported. Through the simultaneous use of a Raman fiber amplifier (RFA), an OTDR dynamic range of 11.5 dB was achieved with a spatial resolution of 5 m View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Technical thin film formation methods in low temperature plasma

    Publication Year: 1994, Page(s):483 - 486 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (304 KB)

    The relation between the nucleation and growth of thin films, and the deposition variable is presented. This relation serves as a rough guide in the preparation of films with particular properties. The selection of the deposition technique for making the film is one of the fatal factors that should be considered. The properties and applications of low pressure low temperature plasma are given. The... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Curvisensors for inside and outside robot arms

    Publication Year: 1994, Page(s):171 - 174 vol.1
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (332 KB)

    When long robot arms are considered, or when improvements to their poor payload-to-weight ratio are sought, there is a need to take arrays of measurements of deflections or strains within solid members. Methods have been proposed which use interferometry with embedded optical fibres, but these are costly and have not met with successful implementation. Resistive strain gauges, on the other hand, a... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • High dynamic range coherent OTDR for fault location in optical amplifier systems

    Publication Year: 1994, Page(s):106 - 109 vol.1
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (316 KB)

    This paper describes a coherent optical time domain reflectometer (OTDR) with a high dynamic range for locating faults in optical cable systems incorporating repeaters based on erbium-doped fiber amplifiers (EDFA). We also present experimental results achieved with transmission lines containing several fiber spans and EDFAs View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Characteristics and use of APD in optical rangefinders

    Publication Year: 1994
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (32 KB)

    Photodiodes are commonly used as detectors in optical rangefinders. However, one drawback is that good accuracy cannot be obtained when the distance is relatively long. This has in turn led to the occasional use of the APD (avalanche photodiode) because of the long distance accuracy its internal gain mechanism provides. One of the most essential characteristics required in this application is the ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Measuring the complexity of metrological systems' signals

    Publication Year: 1994, Page(s):487 - 490 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (360 KB)

    This paper outlines the possibility of attaching the dimensions of complexity to signals in metrological systems. Deterministic chaos processes can produce signals with broad-band spectra similar to random processes. In the former case, chaotic systems have finite dimension of complexity, in the latter case true random processes ought to be infinite-dimensional. Given observed time series, a finit... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Software design of sensor-based robot skills

    Publication Year: 1994, Page(s):175 - 178 vol.1
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (360 KB)

    A paradigm for sensor-based robot programming is discussed where robotic operations are created by combining predetermined robot skills. The creation of these skills and the tools required to design them are the main subjects of this paper. The most difficult aspect of designing sensor-based robot skills is to guarantee that realtime deadlines will be met. System design tools for realtime systems ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Fault location on optical amplifier submarine systems

    Publication Year: 1994, Page(s):110 - 113 vol.1
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (284 KB)

    This paper identifies the problems that arise when optical time domain reflectometry (OTDR) is applied to optical amplifiers systems. It formulates the performance impairment induced by these problems in terms of single way dynamic range (SWDR). A new modulation format is proposed to improve SWDR. Experiments successfully demonstrate that the proposed format achieves a 6 dB improvement and confirm... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Local positioning system with multiple observing points and generation of zooming effect

    Publication Year: 1994, Page(s):798 - 801 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (356 KB)

    This paper deals with the position measurement system, which can be shared by multiple robots. This system is supposed to be applied to the multiple automated vehicles in the work with cooperative manipulation, or to the robots working in the wide and open field, or to the flight system and so on. We solved this problem by using the concept of “advanced active sensing system”, and in p... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Bayesian approach to uncertainty expression for intercomparison of standards

    Publication Year: 1994, Page(s):491 - 494 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (180 KB)

    Recently the authors have proposed a Bayesian approach to uncertainty expression in a direct single measurement of an unidimensional measurand. This approach is based on the analysis of posterior distribution of the measurand given the measurement result. However in many cases one or more measurands are not measured directly but are determined from other quantities measured directly, through funct... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Sinc interpolation errors in finite data record length

    Publication Year: 1994, Page(s):704 - 707 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (196 KB)

    Sinc (Sin(x)/x) interpolation is widely used in the test and measurement community because of its ease of use. It is also well known that, in practice where only finite length of data record are available, there are substantial errors near the end of the data record due to Gibbs' phenomenon. In this paper we examine this phenomenon in more detail and quantify errors in such a way to provide some q... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Performance improvement of material recognition sensor using cubic spline interpolation

    Publication Year: 1994, Page(s):328 - 331 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (264 KB)

    This paper describes a noble robot sensor designed to recognize an unknown material by measuring thermal conductivity on various ambient temperature. An active sensor to measure the thermal conductivity of a gripped object was designed and the software program to discriminate material was developed with C language. To discriminate material, it is required to make the look-up table in which tempera... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Development of autonomous mobile robot for obstacles avoidance

    Publication Year: 1994, Page(s):179 - 180 vol.1
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (192 KB)

    This research has addresses the realization of real-time path plan of large area obstacle avoidance based on the potential method. The reports thus far have addresses the method or generating the potential field independent of the complexity of environment and have proposed the Sensory Point Moving (SPM) method as the technique for speeding up the shift to the potential field from the environment ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Virtual laboratory: an object-oriented framework

    Publication Year: 1994, Page(s):11 - 16
    Cited by:  Papers (10)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (664 KB)

    This work aims to experiment with the concept of a virtual laboratory-a measurement framework wherein the user is capable, through simple graphical user-interface (GUI) operations, of performing in a safe way all the steps occurring in a traditional measurement system: selecting the test method, selecting the involved instruments, configuring the instruments and the associated device drivers, exec... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Non-contact revolution measurement by the magnetic field intensity from axes

    Publication Year: 1994, Page(s):605 - 608 vol.2
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (292 KB)

    A new method to measure and/or estimate the angle, angular velocity and acceleration of axes of rotary machinery, that are neither exposed nor artificially marked for measurement purposes is presented. Axes made from magnetic materials like iron are always magnetized in their production processes and the periodic change in the magnetic field intensity is observed when measured near the rotating ax... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Non-parametric calibration of a time domain reflectometer

    Publication Year: 1994, Page(s):114 - 117 vol.1
    Cited by:  Papers (1)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (296 KB)

    The non-parametric calibration procedure consists in finding the scattering parameters of the line network that connects the reflectometer and the device under test. The scattering parameters are determined by using the S11 measurement of the connection cable terminated with three different loads (open, short and load). Since commercial reflectometers digitize only voltages, one has to ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Performance of a readout system for silicon microstrip detectors

    Publication Year: 1994, Page(s):668 - 671 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (348 KB)

    The components of a readout system for a silicon strip detector designed for a high energy physics experiment are shown. The required signal to noise ratio is achieved by use of a low noise VLSI chip and by use of a software algorithm to reduce coherent noise in the system View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Hybrid FES orthosis for standing up in paraplegia

    Publication Year: 1994, Page(s):575 - 578 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (244 KB)

    Functional Electrical Stimulation (FES) is one of the methods to activate paralyzed muscles for the restoration of functional movements in the patients of spinal cord or central nervous system injury. In the clinical application of FES, the convenience is important as well as safety. Hence, this work combines walker support and orthosis of lower limbs with FES, which is called a hybrid FES. It req... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Accuracy assessment of a laser triangulation sensor

    Publication Year: 1994, Page(s):802 - 805 vol.2
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (224 KB)

    Accuracy of a laser triangulation sensor have been studied. The experiments showed that the accuracy was dependent on the scattering characteristics of the targets. For the quasi Lambertian surfaces, nonlinearity error was less than 0.1% of the measurement range View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Analysis and design of coherent super-heterodyne laser Doppler vibrometer system

    Publication Year: 1994, Page(s):348 - 351 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (256 KB)

    In this paper, the authors use the A.O. frequency-shifted Mach-Zehnder interferometer as system's basic configuration, and propose the coherent super-heterodyne model to achieve system's high precision and noise-free characteristics. To increase the dynamic linear measurement range, the frequency compression and decompression technique is also discussed in this model, and an example with 64 times ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Real time particle image velocimetry using liquid crystal display

    Publication Year: 1994, Page(s):1205 - 1208 vol.3
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (296 KB)

    Particle Image Velocimetry (PIV) measures two-dimensional in-plane flow vectors without disturbing the flow. The multiple exposure photo of the particles suspended into the flow has been used to give the flow velocity vector. Because of the photo developing process, the PIV has not measured in real-time. To process in real-time, we propose an optical PIV system of the spatial filtering technique u... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Some remarks on the application of the ISO guide concerning the expression of uncertainty to the measurement instruments

    Publication Year: 1994, Page(s):495 - 498 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (332 KB)

    After a few comments on some aspects of the ISO Guide, we address in general terms the problems situation related to the calibration and use of measurement instruments. Then some additional concepts and definitions, not explicitly given in the Guide, are discussed, concerning the calibration diagram and the calibration factor, the role of the measurement compatibility in evaluating different measu... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The analysis of event-related potentials elicited during calculation task using the sequential difference method

    Publication Year: 1994, Page(s):986 - 989 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (280 KB)

    In order to clarify the information processing of calculation in a brain, the event-related potentials (ERPs) elicited during the calculation task were measured. However, the ERPs associated with calculation were small amplitude, and the latency of it were unknown. Then, a new method named the sequential difference method was introduced, and succeeded to detect the signal clearly. The detected cal... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.