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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
  • Issues on developing real-time control applications

    Publication Year: 2001, Page(s):137 - 140
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (377 KB) | HTML iconHTML

    The current trend in real-time process control systems can be characterized by complexity and safety increasing, and distributed implementations. Consequently, these grounds imply higher demands for tools and techniques that can be applied all along the system development phases. The domain of control engineering is adequately prepared with tools and techniques for analyzing specific control probl... 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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  • 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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  • The effects of heat treatment on the magnetic behavior of ring-type magnetoelastic torque sensors

    Publication Year: 2001, Page(s):203 - 206
    Cited by:  Patents (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (286 KB) | HTML iconHTML

    Experiments have been performed to determine the effects of appropriate sequential heat treatment steps on thin maraging steel rings shrink-fitted onto stainless steel shafts for use as magnetoelastic torque transducers. The transducer response was found to be linear and reproducible. Subsequent to heat treatment, the transducer function was remarkably improved, exhibiting a more than twofold incr... 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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  • Smart thermocouple system for industrial temperature measurement

    Publication Year: 2001, Page(s):8 - 11
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (291 KB) | HTML iconHTML

    A smart temperature measurement system is described which takes advantage of known sensor performance characteristics to improve industrial temperature measurement. The sensor includes provisions for integrating information into the sensor via an internal memory device. Complementary software and instrumentation then utilizes this information during field operation. Improvements include performanc... 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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  • 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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  • Modeling data transactions with standard protocols for low power wireless sensor links

    Publication Year: 2001, Page(s):51 - 56
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (493 KB) | HTML iconHTML

    The cost of a data transaction measured in terms of energy consumption is very important in wireless sensor networks. The sensors are battery- or solar cell powered, must have long lifetime and must operate reliably under various conditions. Various proprietary hardware and software systems have been developed that optimize the power consumption of a node. However, using standard Protocols require... View full abstract»

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  • Laser based smart displacement sensor

    Publication Year: 2001, Page(s):149 - 154
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (396 KB) | HTML iconHTML

    The paper presents a displacement measuring system based on one optical emitter (laser diode), two optical sensors and on a smart structure used for sensor data processing. The system is designed around the PIC16F877 8-bit microcontroller that powers the sensors, acquires data from the sensors and performs the intelligent processing based on a neural algorithm. Communication between the smart sens... 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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  • 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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  • 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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  • 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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  • Single-crystal sapphire high temperature sensing based on broadband polarimetric interferometer

    Publication Year: 2001, Page(s):303 - 307
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (329 KB) | HTML iconHTML

    An optical high temperature sensor is presented based on a broadband polarimetric interferometer (BPI). The state of polarization of the broadband incident light is modulated by the high birefringence of one single crystal sapphire disk and becomes a wavelength-encoded signal, which is detected by an optical spectrum analyzer (OSA). An internally developed algorithm is employed to directly measure... View full abstract»

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  • High spatial resolution in distributed temperature measurement sensors

    Publication Year: 2001, Page(s):2 - 7
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (425 KB) | HTML iconHTML

    A reflectometric fiber optic temperature sensor was manufactured and characterised. Its reduced dimensions render it suitable for monitoring applications whenever a high spatial resolution is required. The metrological performance of the first prototype seems very interesting in terms of accuracy and, above all, response time View full abstract»

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  • Evaluation of torque pulses in industrial applications using the torque sensor torductor(R)-S

    Publication Year: 2001, Page(s):95 - 100
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (406 KB) | HTML iconHTML

    The Torductor(R)-S is a robust and rugged non-contact torque sensor that utilizes the magnetostrictive property of the load carrying shaft as a working principle. The design of the sensor makes it very durable and reliable, thereby well suited for industrial applications. A particular application that benefits from direct torque sensing is pulsed nutrunners. The integration of a torque sensor in a... View full abstract»

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  • Amorphous selenium based X-ray detectors

    Publication Year: 2001, Page(s):193 - 196
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (395 KB) | HTML iconHTML

    A novel, simpler, competing technology was developed to detect X-ray quanta by a "direct conversion" process from X-ray to electrical charge. Although there are several photoconductor materials with promising characteristics, amorphous selenium has proven so far to have the most appealing combination of characteristics suitable for high resolution X-ray detection. The paper will introduce the basi... 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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  • 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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  • Dynamic road surface measurements on bridges

    Publication Year: 2001, Page(s):145 - 148
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (995 KB) | HTML iconHTML

    This paper describes a road surface measurement method using a bicycle wheel connected to the back of a car. Road surface deflections are detected by wheel vibrations. The latter are measured by accelerometers with data acquisition unit measuring the accelerometer response. Data is collected by a program running on Windows operating system View full abstract»

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  • Improvement of sensitivity of the light-addressable potentiometric sensors for the purpose of noninvasive measurement of electrical activity of biological cells

    Publication Year: 2001, Page(s):215 - 218
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (277 KB) | HTML iconHTML

    The possibility of measurement of the electrical activity of neurons by Light-Addressable Potentiometric Sensor (LAPS) is investigated in this article. For the measurement of the extracellular transient of the neural action potential, which is very low, at the surface of a LAPS heterostructure, a simple structure like SiO2 /Si, instead of the conventional Si3N4/SiO... View full abstract»

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  • Parameter design of the capacitive position sensing circuit for a differentially-driven electrostatic microactuator

    Publication Year: 2001, Page(s):168 - 171
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (266 KB) | HTML iconHTML

    The parameters of the capacitive position sensing circuit for a differentially-driven electrostatic actuator are designed in this paper. Taking the practical requirements into consideration such as SNR requirement, nondistortion and saturation-free conditions, each parameter boundaries and the resultant boundary are determined. In the resultant boundary, the sensitivity function of the charge ampl... View full abstract»

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