Nnoptical technology in current measurement pdf

Digital measurement system digital linear measuring. Particle image velocimetry measurement of indoor airflow field. Evaluation of measuring capability of the optical 3d. 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. 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. Nikons industry leading cmm and handheld laser scanners enable a digital. Noncontact measurement of high temperature using optical.

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. Current transformers for measurement convert high currents in a conductor using a fixed ratio e. Over the past 15 years, optical current sensors have received significant attention by a number or search groups around the world as next generation high. The current sense resi stor is placed in line with the current being measured and the resultant current flow causes a small amount of power to be converted into heat. This is still performed by some steel and metal producers, but automated measurement using optical gauges become more and more common. A low cost, high speed mtf measurement by linear ccd has been successfully developed here. Vibration sensor is more and more important as key devices. This power conversion is what provides the voltage signal. Kl3681 digital multimeter terminal beckhoff new automation. Optical technology in current measurement free download as word doc. This application guide is focused on indirect technologies as they apply. Jan 21, 2016 get optical technology in current measurement seminar report and ppt in pdf and doc.

I know you can just measure diagonally across the lens area but i was hoping someone had a simple way to measure a little more accurately. Particle image velocimetry measurement of indoor airflow. In our training center in monchengladbach, we offer seminars in fiber optic network technology several times a year. Current transformer the mostused device for measurements of alternating currents in electrical high and mediumvoltage networks is the ct current transformer. Measurement for super smooth surface measurement of optical thin film test of infrared technologies optical test and measurement for micro and nano scale technology laser radar modern optoelectronic instruments detectors focal plane instrumentation ir xray uv measurement technology and instrument. Optical current transformer is an alternative to the existing conventional current transformers, providing an advanced measurement solution for both metering and protection applications, based on a cuttingedge patented optical sensing technology. This level of accuracy has never previously been achieved using a traditional non optical sensor.

Latest technology in current measurement seminars topics. Industrial optical length measurement delivers swift and reliable measurement results with ultrahigh precision over short and long distances. Measurement systems using commercial piv are often restricted to the block of optical paths and the size limit of image. This system was made to utilize line scan camera as inspecting system to measure the stagger and height of. The gapgun is an optical measurement system that uses laser triangulation technology to collect its measurements. The resistor is a direct method of current measurement that ha s the benefit of simplicity and linearity. Once submitted, we will try and place you in contact with a suitable optical noncontact profilers and measurement supplier within 48 hours. Optical measurement, when clearly understood and applied, can bring huge benefits. Photonics and optical communication, spring 2005 dr. Pdf implementation of opticalbased measuring instrument. Mar 14, 2014 optical current transformer is an alternative to the existing conventional current transformers, providing an advanced measurement solution for both metering and protection applications, based on a cuttingedge patented optical sensing technology.

We provide further training to keep you up to date. Pdf optical current sensors based on polarization rotated. Digital measurement system digital linear measuring transducers. We also provide training workshops at our other locations, as well as in. The matter presented here is prepared by the author for their respective teaching assignments by referring the text books and reference books.

High current measurement application guide yokogawa. Vertical height limited only by scanner and objective working distance. Digital linear measurement transducers gauging probes with in line connector orbit acs is a specific range of products which integrate contact and non contact linear measurement transducers with an electronics module that includes an integral display. Recent trends of measurement and development of vibration. He is a fellow of the spie, a fellow of the optical society of america, an honorary professor at the university of nottingham, and an active and enthusiastic member of the applied. Confidential material components in an optical system pure highpressure gas greater than 1800 psi gas lines, pressure gauge, etc filterdryer apparatus refrigerator computer temperature controller circuit breakout box vacuum pump vacuum chamber. The ability to handle bidirectional currents enables the current sensor to signalize or provide a trip signal on reverse currents. Extreme current measurements using a fibre optics current. For current measurements, two current paths are available, one of which is a highcurrent path for up to 10 a. Optical metrology providers are responding to customer demands for greater data density and ever more complex applications, often in difficult environments. To avoid the latter, we need to start with an understanding of the basicsthe capabilities and limitations of optical measurement.

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. The evaluation of the measuring capability of a measuring device is very important in the field of quality assurance. Measurement data can be stored locally, but it is not intended for longtime storage. This type of sensor has been under development by the power indust ry for decades. The harting technology group is skilled in the fields of electrical, electronic and. Wp17 optical measurement guidelines white paper 20161201 2016 lumileds holding b. Optical fiber current sensor ofcs based on faraday magnetooptic effect has many advantages of immunity against electromagnetic interference, high sensitivity and wide dynamic range.

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. Department of optoelectronics, silesian university of technology, 2 krzywoustego st. 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. Within the electrochemical industry, dc current measurement systems are required for process control and regulation. Fiber optic current sensors based on polarizationrotated reflection interferometry are demonstrated by incorporating them into polymeric optical waveguide components, including polarization. This tool makes the analysis of manufacturing problems easier. The fiberoptic current sensor is based on faraday rotation effect and can overcome most limitations of traditional current sensors, making accurate direct aircraft lightning measurement feasible and affordable. Digital measurement system digital linear measuring transducers features accuracy to pdf available in hankook kwanghak hoeji 214 january. Third dimension optical measuring devices providing.

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. The ultra compact chrocodile c sensor with its robust and integrated design offers high precision distance and thickness measurements. Form and shape measurement sophisticated round part applications involving form and shape measurement are easily carried out using the flexible programming facility. Optical noncontact profilers and measurement compare. New dc current measurement technology with fiberoptic sensor. Noncontact measurement of high temperature using optical fiber sensors final report contract no.

New dc current measurement technology with fiberoptic. Digital optical measurement techniques and applications and millions of other books are available for amazon kindle. We demonstrate that an optical fibre current sensor can measure current over 500 ka with an accuracy of 0. Optical measurement techniques clarkson university. Optical properties measurement systems mmr technologies, inc. Nikon metrologys optical measuring systems include autocollimators, digital height gages, measuring microscopes, optical comparators and software.

And then the main advantages and disadvantages of several. Among them, 49 percent said they use it 75 percent to 100 percent of the time. Some 42 percent of optical retailers responding to jobson optical researchs 2015 premium lens marketpulse survey said that they have a digital measuring device in their office. A fiberoptic current sensor focs is a current sensor for measuring direct current. 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. Theres an old adage that a lens design is only as good as the fit. A new generation optical flatness measurement systems. In some instances, there is a case for combining optical measurement with other technologies to produce more comprehensive results than using just one technique. You receive informative results in a very short time. Another critical challenge is the interface with end devices including meters and relays, as the signals. 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.

Me637 particle transport, deposition and removal ii jeffrey a. These circuits have been culled from a variety of linear technology. Providing versatility in noncontact optical surface profiling with the newview 8000 series. Components and methods for current measurement revision. Fiberoptic current and voltage sensors for highvoltage. You might want to finally invest in a digital measuring device for your optical, if you havent already. Do they make a guage that has circles that go from say 30mm out to 70 or 80mm that you can lay the frame on to get a more accurate reading. Vibration measurement has become an important method in mechanical structural products research, design, produce, apply and maintenance. Explore optical technology in current measurement with free download of seminar report and ppt in pdf and doc format. Introduction in recent years optical current and voltage. Digital optical measurement techniques and applications. Two halogen lamps are located inside the ofr 104 flare ulbricht sphere, which illuminate the spheres interior.

Harting hall effect current sensors and measurement transformers. Optical measurement optical measurement addresses the growing need to inspect parts faster, in a more accurate and repeatable way. It is necessary to develop large spatial scale optical system and camera shooting technology to overcome these limitations. Results independent of intensity variations across field of view. Fiberoptic current and voltage sensors for highvoltage substations k.

With todays freeform lenses in the forefront, that adage has never. Taylor optical measurement techniques turbulent flows are the rule, not the exception. The best results obtained on the with cladding sensor type with 3 cm length of peel for measuring electric current produce a sensitivity value of 0. The current and the voltage measurement facility can.

The other current sensing implementations are beyond the scope of this application note and reserved for subsequent microchip technology incorporateds application notes. We propose an optical based measuring instrument of catenary system in electric railway. Nowadays, with the development of computer technology, electronic technology and manufacturing process, a. We consider bulkoptics and allfiber current sensors and voltage sensors that exploit the electrooptic effect in bgo and the piezoelectric effect in quartz. Minimum current threshold for logic 1 is set to i 1,min maximum current threshold for logic 0 is set to i 0,max opening of the eye, e eye i 1,mini 0,max international university bremen course. Oct 01, 20 hightech measuring digital measuring devices can do more than just help deliver customized precision. Pdf extreme current measurements using a fibre optics. Third dimension optical measuring devices providing optical. We also provide training workshops at our other locations, as well as inhouse workshops. Besides the mtf measurement, the important lens characteristics like distortion, optical axis misalignment, relative f number, magnification, and back focus length also can be measured by this system with a very high speed and low cost fully computerized.

Promeasure is a powerful software system, which allows a visual comparison of the true form obtained. Optical current sensing element with single medium. Optical technology in current measurement seminar report. The paper presents the experimental results of the investigations of optical. Microfocus xray and computed tomography inspection systems get the inside insight of complex industrial parts in a non destructive way. 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. Any suggestions on an easy quick way to measure frame eds. Various measuring principles are available for length measurement using light, such as the triangulation method, the phase measurement process, or the timeofflight propagation of a pulse. Optical technology in current measurement polarization waves. Aug 31, 2016 optical fiber current sensor ofcs based on faraday magnetooptic effect has many advantages of immunity against electromagnetic interference, high sensitivity and wide dynamic range. Surface measurement 101 noncontact 3d optical metrology dr. One of the measuring devices is the optical 3d scanner which is device for object digitization, in substance. 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 advancements improve performance by bill kolbeck, business unit director, automation products raytek corporation infrared ir technology has been successfully employed for years in manufacturing industries for ongoing temperature measurement and control. For current measurements, two current paths are available, one of which is a high current path for up to 10 a. Marshaft optical and tactile shaft measuring units. Traditionally, flatness measurement has been done manually using a straight reference straight edge or thin wire under tension and a wedge or feeler gauge. Get optical technology in current measurement seminar report and ppt in pdf and doc.

A current transformer transforms the current down to a reasonable level and provides an isolation barrier. Components and methods for current measurement vishay. We report on abbs fiberoptic current and voltage transducers and their applications in highvoltage substations. A fiberoptic current sensor for lightning measurement. The benefits of optical measuring technology are its high point density and speed. Legendary nikon optics in each nikon upright microscope provide superb images over the entire magnification range. His research has led to 5 us patents and 150 technical publications.