Search query: 1994 IEEE Instrumentation and Measurement Technolgy Conference

Related papers:

abstract: The new possibilities of self sustained oscillations of acoustoelectric and photoelectric voltages accompanied by surface acoustic wave and light self modulations in layered semiconductor piezoelectric and metal dielectric semiconductor structures with relaxation that we have discovered are presented with a view of sensing of physical and chemical environmental parameters and measurement of semiconductor electronic parameters. It gives principal methods to improve sensitivity and precision because the frequency of the self sustained oscillation or self modulation /spl Omega/ is expressed in terms of the charge discharge relaxation time /spl tausub s/ of the metal piezoelectric semiconductor or metal dielectric semiconductor structures. The frequency of self sustained oscillations /spl Omega/ allows relaxation time /spl tausub s/ to be determined directly. This connection between /spl Omega/ and /spl tausub s/ can successfully be used in physical and chemical sensors with frequency output and may be a basis investigations of semiconductor parameters such as surface states' parameters and their spectroscopy properties. It is the great interest because of in the precise sensors and investigation methods we use self organization processes in which the frequency of electrical signal can be easily measured with high precision and it gives high sensitivity.<ETX>
author_names: Vladimir Vyun
title: Sensing and measurement with self sustained acoustoelectric and photoelectric oscillations in structures with relaxation
venue: Conference Proceedings. 10th Anniversary. IMTC/94. Advanced Technologies in I M. 1994 IEEE Instrumentation and Measurement Technolgy Conference (Cat. No.94CH3424 9)
year: 1994

abstract: In this paper a method is presented to impose a desired periodic excitation signal on the input of a nonlinear system using an arbitrary waveform generator. It is illustrated that this technique has many applications, like a linearity check of an unknown system and the measurement of the harmonic distortion.<ETX>
author_names: Frank Louage

Joannes Schoukens

Yves Rolain
title: Generation of computer controlled excitations and its application to the detection and measurement of harmonic distortions
venue: Conference Proceedings. 10th Anniversary. IMTC/94. Advanced Technologies in I M. 1994 IEEE Instrumentation and Measurement Technolgy Conference (Cat. No.94CH3424 9)
year: 1994

abstract: Fuzzy techniques can represent a global resource for intelligent instrumentation: this paper shows how a totally fuzzy approach can be proposed which is able to deal with 1 D and 2 D measurement data. Focussing on the task of data pre processing, we describe a family of rule based fuzzy operators and their capability of addressing some important pre processing tasks such as filtering and feature extraction. Application examples to both the cases of 1 D and 2 D data are presented.<ETX>
author_names: Fabrizio Russo

Giovanni Ramponi
title: A totally fuzzy approach to multisensor instrumentation: pre processing techniques
venue: Conference Proceedings. 10th Anniversary. IMTC/94. Advanced Technologies in I M. 1994 IEEE Instrumentation and Measurement Technolgy Conference (Cat. No.94CH3424 9)
year: 1994

abstract: Testing an electronic circuit is a vital part of its overall design and fabrication process. This problem is even going to be more critical with technology improvements and with the coexistence on a chip of analog and digital components. In fact the testing of mixed signal microsystems is very difficult compared to digital only devices. They do not lend themselves to earlier and simpler test routines. The entire mixed signal segment is hampered by the lack of design for testability methodologies and tools. In this field the concept of analog circuit testability is of fundamental importance. The aim of this work is to present a new symbolic approach for testability measurement of analog networks. The new method presents noteworthy advantages from a computational point of view with respect to previous techniques. In fact it does not require the computation of the sensitivities of the network functions but it is based only on the study of the network function symbolic coefficients. The new approach allows also the formulation of simple necessary conditions for maximum testability based only on the order of the network functions.<ETX>
author_names: A Liberatore

Stefano Manetti

Maria Cristina Piccirilli
title: A new efficient method for analog circuit testability measurement
venue: Conference Proceedings. 10th Anniversary. IMTC/94. Advanced Technologies in I M. 1994 IEEE Instrumentation and Measurement Technolgy Conference (Cat. No.94CH3424 9)
year: 1994

abstract: This paper presents a position measuring method and its applications to human interface. It is based on the principle of ultrasonic position measurement by phase difference. In conventional method, position is computed with the absolute distance between sender and receiver, on the other hand, in our method, it is computed with the phase difference between the waves received by a pair of receivers. Any kinds of motor actions of users is available to screen pointing by the device, then it allows computer users various pointing styles including "mouse like" and "pen like" ones. Firstly, the principle and the formulae of ultrasonic position measurement by phase difference are introduced. Secondly, trial construction of the pointing system is described, and performance of the pointing system is investigated. Finally some examples of pointing devices with various pointing styles are realized, and experiments on the efficiency of pointing tasks with computer users are carried out to conclude that the pointing system is suitable for practical use.<ETX>
author_names: H Nonaka

Tsutomu Da-te
title: Ultrasonic position measurement and its applications to human interface
venue: Conference Proceedings. 10th Anniversary. IMTC/94. Advanced Technologies in I M. 1994 IEEE Instrumentation and Measurement Technolgy Conference (Cat. No.94CH3424 9)
year: 1994

abstract: The success of demand side energy control in industries, mines and commercial buildings depends on factors like the energy sensitivity and awareness of the organisation as well as an accurate and effective measurement and monitoring of its electrical energy consumption. Demand side energy control also forms an important part in the research programs of many research organisations. Reliable data on energy consumption is therefore imperative for effective research in this field, as well as for the successful implementation of demand side management. Traditional load research instrumentation has involved intrusive techniques that require the installation of sensors on each of the individual components of the total load. A non intrusive appliance load monitor is proposed in this paper to determine the energy consumption of individual appliances turning on or off or operating under continuously varying load conditions. This monitoring system, which is implemented by network pattern identification technology, is based on detailed analysis of the current and voltage of the total load, as measured at the interface of the power source. The approach has been developed to simplify the collection of energy consumption data by utilities, but also has other applications. It is called nonintrusive to contrast it with previous techniques for gathering appliance data, which require placing sensors on individual appliances, and hence an intrusion onto the energy consumer's properly.<ETX>
author_names: J G Roos

I E Lane

Elizabeth C Botha

Gerhard Petrus Hancke
title: Using neural networks for non intrusive monitoring of industrial electrical loads
venue: Conference Proceedings. 10th Anniversary. IMTC/94. Advanced Technologies in I M. 1994 IEEE Instrumentation and Measurement Technolgy Conference (Cat. No.94CH3424 9)
year: 1994

abstract: In this paper we describe a method for measuring three dimensional shape of specular polyhedron by using an M array coded light source. Determination of a shape of specular surface is important especially for industrial applications. However, owing to specular reflection, it is difficult to measure the shape of specular surfaces by applying the methods for diffusing surfaces. We reconstruct the shape of specular objects from the image of M array coded light source observed after being reflected by the object. Using the "window property" of M array, the correspondence is found between a point on the image of reflected light source and a point on light source. By assuming that the surface is locally a plane, normal vectors of the surface are determined from the correspondence, and three dimensional shape of the surface is reconstructed. This method enables us to measure the shape of specular polyhedron by using a simple equipment. The method was tested for a polyhedron of 10 cm of each side, 50 cm apart from the camera. The shape of the polyhedron was reconstructed correctly. The precision of the measurement was about 1 mm.<ETX>
author_names: Hiroshi Hoshino

Kazuo Yano

Senya Kiyasu

Sadao Fujimura
title: Measurement of the 3 D shape of specular polyhedrons using an M array coded light source
venue: Conference Proceedings. 10th Anniversary. IMTC/94. Advanced Technologies in I M. 1994 IEEE Instrumentation and Measurement Technolgy Conference (Cat. No.94CH3424 9)
year: 1994

abstract: The DMM card manufactured by MetraByte USA and an IBM PC compatible computer have been used for power distribution monitoring. The DMM (digital multimeter) card belongs to the group of VTS virtual instrumentation systems. It converts the IBM PC compatible computer into a powerful instrumentation system. This system has been hooked onto the busbars of a multi cubicle switchboard, which is directly connected to the distribution power transformer outside the building of the department of electrical engineering.<ETX>
author_names: K Korzeniowski
title: The use of DMM computer instrumentation system for power distribution monitoring and energy management
venue: Conference Proceedings. 10th Anniversary. IMTC/94. Advanced Technologies in I M. 1994 IEEE Instrumentation and Measurement Technolgy Conference (Cat. No.94CH3424 9)
year: 1994

abstract: Fuzzy techniques can represent a comprehensive framework for intelligent instrumentation which deals with multisensory input data. Addressing the task of data fusion, this paper shows how flexible processing strategies can be implemented by resorting to a fuzzy approach. The general structure of a fuzzy system for information fusion is described and the adoption of different classes of fuzzy aggregation connectives discussed. Examples of application to both cases of 1 D and 2 D data are presented.<ETX>
author_names: Fabrizio Russo
title: A totally fuzzy approach to multisensor instrumentation: estimation through data fusion
venue: Conference Proceedings. 10th Anniversary. IMTC/94. Advanced Technologies in I M. 1994 IEEE Instrumentation and Measurement Technolgy Conference (Cat. No.94CH3424 9)
year: 1994

abstract: Methods of Alternating Noise Canceling (ANC) were previously developed for the optical instrumentation: one using a dual photo sensor and another using a single photo sensor that could cancel normal mode noise (NMN) on a transmission line, even if the noise was equal status noise. A method using a sensor with a sensordummy resistance was also previously developed using ANC method against NMN not only on a transmission line but also on a sensor line. In this case, the sensordummy resistance had to be adjusted to a suitable averaging value against the changing impedance of the photo sensor. A new method of ANC is developed using a photo sensor and a dual sensor dummy i.e. an inverse connected sensordummy. This method doesn't need adjustment for any dummy resistance.<ETX>
author_names: Katsutoshi Mine

N Kubota

Fumio Morimoto

Mizuho Sanada

L Ne
title: An optical instrumentation using dual sensor dummy against noises
venue: Conference Proceedings. 10th Anniversary. IMTC/94. Advanced Technologies in I M. 1994 IEEE Instrumentation and Measurement Technolgy Conference (Cat. No.94CH3424 9)
year: 1994