Together with modern digital relays this technology offers new reliable ways to. A compass is one such device, one that measures the direction of an ambient magnetic field, in this case, the earths magnetic field. Form and shape measurement sophisticated round part applications involving form and shape measurement are easily carried out using the flexible programming facility. Optical technology in current measurement free download as word doc. Using the liquid core technology enhances the current raman technology three ways.
Fundamentals of instrumentation and measurement edited by dominique placko. Digital measurement system digital linear measuring transducers features accuracy to optical metrology contains a new chapter about computerized optical processes, including digital holography and digital speckle photography. We provide further training to keep you up to date. Based on the hardware in use, there are basically two types of measurement techniques and facilities used in sampling point data from complicated or freeform surfaces. Pdf in this paper we demonstrate the design of a lowcost optical current sensor. Taylor optical measurement techniques turbulent flows are the rule, not the exception. Current measurement plays an important role in protection and control of electric power systems. In addition, allow all reference standards to warm up for at least 3045 minutes before making. An optical technique for the measurement of longshore currents c. Mm200 precise, compact and easytouse measuring microscope. Accurate measurement of their phase retardation is crucial to the practical effect of the elements processing and application.
Digital measurement system digital linear measuring. This barcode number lets you verify that youre getting exactly the right version or edition of a book. Digital optical measurement techniques and applications. Confocal sensor measures targets without dropouts 0.
Optical technology in current measurement seminar report. Optical position sensor based on digital image processing. The fourier optical measurement system foms is a tool for assessing the quantum efficiency of solar cells. Promeasure is a powerful software system, which allows a visual comparison of the true form obtained. A magnetometer is a device that measures magnetismthe direction, strength, or relative change of a magnetic field at a particular location. Abbs newly developed fiberoptic current sensor focs is a spin off from a sensor developed for highvoltage substations and opens totally new perspectives in the field of high current dc measurement. In our training center in monchengladbach, we offer seminars in fiber optic network technology several times a year. Its unique design allows for a full determination of the eqe curve in mere seconds. An introduction to optical measurement quality digest. Within the electrochemical industry, dc current measurement systems are required for process control and regulation. The nikon metrology range of optical measuring systems includes, autocollimators, digital height gages, measuring microscopes, optical comparators and software. Abbs newly developed product family of fiber optics current sensor free standing focsfs offers significant improvements over conventional cts and facilitates direct introduction of digital process bus in hv substations.
Digital optical measurement techniques and applications and millions of other books are available for amazon kindle. The gapgun is an optical measurement system that uses laser triangulation technology to collect its measurements. Understanding optical measurement systems ensures that you will select the right system to meet your organizations current and future needs. The linear portion of the iv curve is extra plotted back to the x axis. Pdf design and development of a lowcost optical current sensor. Digital optical measurement techniques and applications 1st edition by pramod rastogi editor isbn. A fiberoptic current sensor focs is a current sensor for measuring direct current. Learn more digital optical measurement techniques and applications 1st edition. Apr 01, 2015 situations where a part needs to be compared to its cad data like this are ideal applications for this optical measurement technology. New dc current measurement technology with fiberoptic sensor.
I did implement a visual measurement system on pcb fault detection, with the algorithms image operation and statistical measurement given, i able to improved my first prototype. Optical technology in current measurement polarization waves. Also explore the seminar topics paper on optical technology in current measurement with abstract or synopsis, documentation on advantages and disadvantages, base paper presentation slides for ieee final year electrical and electronics. New dc current measurement technology with fiberoptic. Me637 particle transport, deposition and removal ii jeffrey a. Medical use simulation use polaris series track the 3d position and orientation of active or passive markers attached to surgical tools with advanced optical measurement. Modern current measurement systems based on magnetic field sensing devices are introduced and a comparison of. Medical use simulation use polaris series track the 3d position and orientation of active or passive markers attached to surgical tools with advanced optical measurement technology that. This book provided practical and workable case studies.
Recent optical and photonic technologies intechopen. The measurement of the magnetization of a magnetic material like a ferromagnet is an example. This tool makes the analysis of manufacturing problems easier. Polaris vega achieve a new level of tracking accuracy and speed with this passive optical measurement solution that integrates seamlessly into oem tool navigation and visualization applications. Confidential material vacuum chamber confidential material possible temperature ranges kelvin scale 70 k to 580 k 80 k to 580 k 70 k to 730 k 80 k to 730 k 300 k to 730 k centigrade scale 200. A new generation optical flatness measurement systems. By using a singleended optical fiber around the current conductor that utilizes the magnetooptic effect faraday effect, focs measures uni or bidirectional dc currents of up to 600 ka within 0. This makes foms 2 to 3 orders of magnitude faster than current eqe systems. Digital measurement system digital linear measuring transducers. You receive informative results in a very short time. We also provide training workshops at our other locations, as well as in.
Optical current sensors ocss show several important features when compared with conventional current transformers cts, such as their having highly effective isolation from high line potentials offered by the dielectric nature of the optical fibers, freedom from the saturation effect which may be observed in conventional transformers, the. Measurement of the optical conductivity of graphene authors. This result is in agreement with a constant absorbance of. Marshaft optical and tactile shaft measuring units. A typical optical spectrum of a single mode vcsel is shown in figure 7. Knight opticals technical library offers over pdf on opitcal application and metrology lab standards. Optical absorption effects created by the shape of the tube are corrected with software and using a simultaneous measurement of the white light absorption spectra. Optical measurement techniques clarkson university.
Explore optical technology in current measurement with free download of seminar report and ppt in pdf and doc format. Get optical technology in current measurement seminar report and ppt in pdf and doc. With the development of the conventional ct, the accuracy of the ct is up to 0. We also provide training workshops at our other locations, as well as inhouse workshops. Current measurements using optical power ieee conference. With an optically powered data link and a transducer, direct current, voltage. Chapter 2, on gaussian optics, and chapter 5, on light sources and detectors, are greatly expanded to include descriptions of standard imaging systems, lightemitting diodes and solidstate. Thus position measurement based on digital image processing is. Jan 21, 2016 get optical technology in current measurement seminar report and ppt in pdf and doc. Please note that the optical linewidth of a single mode laser cannot be measured on a typical optical spectrum analyzer. Nikons new mm200 measuring microscope is compact and lightweight with an affordable price for all who require precision and accuracy for measuring a variety of metal, plastic, and electronic parts in all industries. Optical properties measurement systems mmr technologies, inc.
Using a stellarnet fiber optic spectrometer coupled to a reflectance probe and fiber optic light source, it is possible to measure film thickness by detecting the sinusoidal fringe pattern from the samples specular reflectance. Optical devices can also be used in detection of magnetic fields, and the principle of the operation of. Measurement of magnetooptic kerr effect using piezobirefringent modulator j. Digital measurement system digital linear measuring transducers features accuracy to pdf automated optical inspection is a very important technique. Accurate measurements of the optical linewidth must be done with a fabryperot interferometer or other means. Portable noncontact 3d surface profilometer which applicable to inlineonmachine measurement. The benefits of optical measuring technology are its high point density and speed. This document does not contain technology or technical data controlled under either the u. A case for combining optical measurement solutions. Plot the curve on the graph paper between voltage on x axis and current on y axis. With todays freeform lenses in the forefront, that adage has never.
As the manufacturing process becomes progressively more complicated, there is an ever increasing. The industry requirement for 2d and 3d inspection technology in a single aoi platform the continuing evolution toward advanced miniature packaging has led to ever increasing pcb density and complexity. Heinz submitted on 7 oct 2008 v1, last revised 3 aug 2009 this version, v3. Basic interferometry and optical testing university of arizona. Optical measuring instrumentsprecision measuring instrument.
Optical current transformer is an alternative to the existing conventional current transformers, providing an advanced measurement solution for both. Third dimension optical measuring devices providing optical. Basic interferometry and optical testing two beam interference fizeau interferometer twymangreen interferometer laser based fizeau machzehnder interferometer typical interferograms interferograms and moire patterns classical techniques for inputting data into computer james c. Pdf an optical sensor for measuring the position and. Optical measurement, when clearly understood and applied, can bring huge benefits. Isbn 9789537619718, pdf isbn 9789535145684, published 20100101. It is a must for those would like to work practically on visual measurement system. Optical reflectivity and transmission measurements over photon energies between 0. Operations no longer begins and ends in the factory. The most commonly used instrument for the measurement of the optical performance of thinfilm coatings is a spectrometer. Current measurement with optical current transformer. Take the current measurement of each led by varying the voltage as given in the table. An optical technique for the measurement of longshore currents. The techniques, which enable users to observe, measure and analyze parts for quality control purposes, have moved out of their original homes in manufacturing.
Knight optical technical library optical application. We use this equipment since the voltage and current at high voltage substations cannot be directly used for measurement and protection and voltage and current transformers must be used to bring down large amounts. Optical technology in current measurement electric current. Knight optical technical library optical application pdfs. The principles of optical and optical fiber current sensor technology have been known for some considerable time, and some of the earliest papers on optical fibre measurement techniques have considered this topic. Optical technology in current measurement seminar report, ppt. Automatic programming of robotmounted 3d optical scanning. Nonintrusive seed, but no probes in the flow field robust no particle collection on probe high accuracy accuracy is predictable high precision very little drift small measurement volume optical techniques. Marshaft optical and tactile shaft measuring units mahr. Theres an old adage that a lens design is only as good as the fit. Optical metrology is the principle behind optical measurement devices, such as the gapgun that can determine the dimensional profile of a part, by taking a series of pictures of its surface. Mikko kuisma at lappeenranta lahti university of technology lut. A setup based on fixed sensor housing with integrated optics and processing power. Pdf automated optical inspection is a very important technique.
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