SIcon/01. Sensors for Industry Conference. Proceedings of the First ISA/IEEE. Sensors for Industry Conference (Cat. No.01EX459)

7-7 Nov. 2001

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  • SIcon/01. Sensors for Industry Conference. Proceedings of the First ISA/IEEE. Sensors for Industry Conference (Cat. No.01EX459)

    Publication Year: 2001
    Request permission for commercial reuse | PDF file iconPDF (324 KB)
    Freely Available from IEEE
  • Author index

    Publication Year: 2001, Page(s):xvii - xix
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    Freely Available from IEEE
  • Calibration and uncertainty analysis of temperature sensors [HVAC DDC system]

    Publication Year: 2001, Page(s):286 - 289
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (265 KB) | HTML iconHTML

    Direct digital control systems are used to collect and process large streams of data. The data is used in enhanced applications that rely on the accuracy of the measured data. This paper described a method of calibrating temperature sensors in a heating, ventilating and air-conditioning direct digital control system to account for the errors in the sensor, wire, and analog-to-digital converter. Th... View full abstract»

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  • State estimator function block on control loops fieldbus foundation protocol

    Publication Year: 2001, Page(s):134 - 136
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (160 KB) | HTML iconHTML

    The evolution of foundation fieldbus system is now being attained by the integration of new function blocks and new control techniques integrated to the standard functionality of the system. This paper describes different ways to use a newly developed state estimator function block on control loops based on estimated state feedback for SISO dynamic systems. The different control loops variations a... View full abstract»

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  • Microwave moisture sensor with nonlinear data processing using artificial neural networks

    Publication Year: 2001, Page(s):246 - 250
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (294 KB) | HTML iconHTML

    The application of resonators as sensors for industrial microwave moisture measurement is advantageous, because resonators show a high sensitivity and require only scalar measurement systems. The theoretical background of the measurement procedure often assumes single tuned behaviour of the resonator and only weak distortion of the resonance through the measured material. These assumptions are oft... View full abstract»

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  • Wear sensor integrated cutting tool for turning

    Publication Year: 2001, Page(s):84 - 88
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (520 KB) | HTML iconHTML

    An in-process tool wear meter for turning has been developed by combining a sensor-integrated insert and simple signal processing technique. The sensor consists of TiN thin lines, which are deposited on the flank of each cutting corner of ceramic insert in parallel with the edge. As flank wear causes breakage of the lines, a step increase in sensor resistance occurs. This feature of the resistance... View full abstract»

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  • Subsurface detection of small voids in low-loss solids

    Publication Year: 2001, Page(s):281 - 284
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (286 KB) | HTML iconHTML

    An open-ended coaxial probe method has been investigated for the detection of small subsurface voids in low-loss solids. Defects have been inserted into a 2 mm subsurface layer of wood veneer placed below an identical 2 mm layer of wood veneer without defects. The subsurface defect locations were correctly identified using this coaxial probe. Defects of various shapes with shallow depths (<0.5 ... View full abstract»

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  • Projecting and integrating fieldbus foundation function blocks

    Publication Year: 2001, Page(s):131 - 133
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (188 KB) | HTML iconHTML

    This paper describes the function block application process of the foundation fieldbus protocol, based on the inter relationship of function blocks, device description and object dictionary. Also is presented a method for projecting and integrating new foundation fieldbus function blocks, based on practical project experience and on the foundation fieldbus specifications and standards View full abstract»

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  • Use of quartz crystal microbalance sensors for monitoring fouling and viscoelastic phenomena in industrial process applications

    Publication Year: 2001, Page(s):241 - 245
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (339 KB) | HTML iconHTML

    The quartz crystal microbalance (QCM) provides an extremely sensitive technique for measuring small changes in interfacial phenomena on the sensor's surface. QCMs are being used with increasing frequency for the measurement of interfacial phenomena in laboratory applications. The use of the QCM in industrial applications is complicated by the delicate nature of the QCM crystal and the elevated tem... View full abstract»

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  • Wireless interfaces for IEEE 1451 sensor networks

    Publication Year: 2001, Page(s):45 - 50
    Cited by:  Papers (12)  |  Patents (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (523 KB) | HTML iconHTML

    NIST started working with industry and the Institute of Electrical and Electronics Engineers (IEEE) in the mid 90's to develop a standardized interface to network smart sensors. With the spread of wireless technology, more industries are looking to incorporate wireless communications into their products and manufacturing processes. This paper discusses the IEEE 1451 standard interface for smart se... View full abstract»

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  • Implementation of a plug and play sensor system using IEEE P1451.4

    Publication Year: 2001, Page(s):162 - 166
    Cited by:  Papers (1)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (406 KB) | HTML iconHTML

    Almost all test and measurement, industrial automation, and data acquisition systems involve interfacing analog sensors and actuators (for temperature, pressure, flow, vibration, etc.) to some form of instrumentation (data acquisition cards, data loggers, I/O systems, meters, controllers, etc.). The developing IEEE P1451.4 standard proposes a mechanism for adding self-identification to traditional... View full abstract»

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  • Bringing legacy systems into a networking evolution

    Publication Year: 2001, Page(s):57 - 60
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (251 KB) | HTML iconHTML

    Today's electric distribution manager must deal with an array of fast-paced developments including newer and faster technologies, consolidations, and the emergence of the Internet as a powerful, wide-reaching resource. These changes make it vitally important that managers understand all of their options when establishing or expanding data networks View full abstract»

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  • Quartz angular rate sensor for automotive control

    Publication Year: 2001, Page(s):172 - 175
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (378 KB) | HTML iconHTML

    A new quartz angular rate sensor has been developed for automotive controls. The principle of the sensor is detection of the Coriolis force with a vibrator An H shape vibrator supported with a stein at the center was used The vibrator supported at the center was good for the isolation of a small motion detecting angular rate from an extremely large excitation motion. A new mechanical coupling mode... View full abstract»

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  • Industrial design of a solid-state wind sensor

    Publication Year: 2001, Page(s):68 - 71
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (341 KB) | HTML iconHTML

    This paper describes the industrial realization of a solid-state wind sensor, that is one without moving parts. The sensor's key component is a heated silicon chip that is nonuniformly cooled by the wind. The resulting flow-induced temperature gradient in the chip is measured by integrated thermopiles. Their output is digitized and processed by a microprocessor in order to determine wind speed and... View full abstract»

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  • RF high-Q spiral inductor design

    Publication Year: 2001, Page(s):78 - 82
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (241 KB) | HTML iconHTML

    Post-processing of silicon wafers combined with MEMS design techniques can be used to create a variety of high-performance active and passive devices for use in RF and millimeter wave telecommunications products. These devices have the potential to replace off-chip passives and enable design of single-chip radio systems. In this paper, we will focus on the design of a high-Q inductor and describe ... View full abstract»

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  • A multi-period interface system for impedance measurements

    Publication Year: 2001, Page(s):276 - 280
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (267 KB) | HTML iconHTML

    A novel multi-period interface system for impedance measurement, based on a first-order oscillator, is presented. The system is designed for sterility testing of aseptically packed food products by noninvasive measurement of the conductivity of the packaged food. In this application the measured impedance can be modeled as a resistor, representing the conductivity of the food in series with a capa... View full abstract»

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  • A tunable bias-heating cancellation circuit for microbolometer readout electronics

    Publication Year: 2001, Page(s):264 - 268
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (379 KB) | HTML iconHTML

    Microbolometer sensors are commonly used in uncooled infrared focal plane arrays. However, they unavoidably suffer from severe bias heating during readout. This paper describes a simple and yet effective on-chip bias heating cancellation method based on the equivalence between the electrical and thermal systems and uses a capacitor to mimic the thermal capacitance of the bolometer. The cancellatio... View full abstract»

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  • Use of XML in transducer electronic data sheets

    Publication Year: 2001, Page(s):102 - 107
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (371 KB) | HTML iconHTML

    Transducers, both sensors and actuators, have traditionally been, and for the most part still are, analog devices. In recent years a number of digital devices have been introduced with digital outputs where the market could support the additional cost. Digitization and communication through a bus, as opposed to individual analog connections, introduced the term "smart sensors". The IEEE p1451.3 st... View full abstract»

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  • Proposal for sensitive and tactile human hand prosthesis

    Publication Year: 2001, Page(s):235 - 239
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (251 KB) | HTML iconHTML

    The goal of this work is a sensitive tactile human hand prosthesis design, to help people without one or both hands. This design is based on a detailed sensitive tactile human hand study and a tactile system for robotic hand. The result, a 256 sensitive contact points system, has the capacity to detect and send the pressure of each point to the human arm skin through noninvasive electrodes; this i... View full abstract»

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  • Flowmeter based on heat dissipation principles

    Publication Year: 2001, Page(s):41 - 43
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (181 KB) | HTML iconHTML

    A flowmeter was built using the heat dissipation principle. The objective is to keep the body (sensor) at some value of temperature (setpoint) higher than the temperature of the fluid in which the flow is being measured. The energy balance for the sensor once the setpoint is reached states that the dissipated heat, which is a function of the fluid speed, is equal to the supplied energy to the heat... View full abstract»

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  • Theory and use of in-line refractive index analyzers for improved process control

    Publication Year: 2001, Page(s):219 - 223
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (521 KB) | HTML iconHTML

    This process control and automation involves using an in-line digital process refractometer to determine and/or control the quality of various liquids. Refractive index is a physical property of a fluid that can be related to the concentration. A real-time continuous measurement of the refractive index can eliminate sampling, improve product consistency, reduce waste and help to optimize the proce... View full abstract»

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  • A pressure belt system for an airborne pressure survey

    Publication Year: 2001, Page(s):156 - 161
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (476 KB) | HTML iconHTML

    This paper describes a new instrumentation technique to acquire coefficient of pressure (Cp) measurements on aircraft surfaces in flight. The method provides a measure of absolute pressure at points on an aerodynamic surface. Each transducer of the array is combined with signal conditioning and data processing components to communicate an engineering units result via a digital data bus. These comp... View full abstract»

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  • Advantages of using ceramics for pressure sensors

    Publication Year: 2001, Page(s):197 - 202
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (419 KB) | HTML iconHTML

    Ceramic pressure sensors are corrosion resistant to most chemicals, acids and alkalines. They are abrasion-resistant and "cleanable". They withstand pressure overload up to 800 times adjusted span. The sensor is "dry", with no fill fluid and the sensor permits virtually no hydrogen permeation They are suitable for use in full vacuum applications. The true long term stability has a maximum 0.1% zer... View full abstract»

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  • High-level design of a digital current sensor using multibit sigma-delta modulation

    Publication Year: 2001, Page(s):23 - 28
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (365 KB) | HTML iconHTML

    The sigma-delta modulation has become the standard A/D conversion for most applications requiring high resolution. A recent extension of this principle consists in replacing the first stage of the modulator (a servo-controlled adder) by a physical opposition cell. The expected benefits for digital sensors are high resolution as well as improved linearity. In this paper, the high-level design of a ... View full abstract»

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  • Automatic uncertainty calculation for smart measurement systems

    Publication Year: 2001, Page(s):290 - 295
    Cited by:  Papers (3)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (352 KB) | HTML iconHTML

    The design of software for automatic calculation of uncertainty is described. Using a mathematical model of a measurement, expressions for uncertainty can be derived, establishing the sensitivity of a result to any variation in the uncertain input terms. We show how software suitable for measurement systems can be designed to automate the evaluation of uncertainty View full abstract»

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