electricity signal Tactile transducer converts electrical signal into vibration signal vibration ... 5539.htm Federal Standard 1037C, August 7, 1996 transducer http www.instrumentationtoday.com Transducer Category Transducers ar bn ca Transductor da Transducer de Sensorik Technik el ... more details
Unreferenced date December 2006 An interdigital transducer IDT , or interdigitated transducer , is a device which consists of two interlocking comb shaped metallic coatings in the fashion of a zipper which are applied to a piezoelectric Wafer electronics substrate , such as quartz or lithium niobate . IDTs are primarily used to convert microwaves to surface acoustic wave s SAW . ALSO see http www.ee.washington.edu research seal pubfiles 2004808805.pdf for further information. Its dealt in a greater detail. See also Comb drive DEFAULTSORT Interdigital Transducer Category Transducers Category Microtechnology Electronics stub de Interdigitaltransducer pl Przetwornik mi dzypalczasty ru ... more details
Image Smart transducer.gif thumbnail 400px A smart transducer containing a transducer, processing unit and may contain a communication interface. A smart transducer is an analog or digital transducer or actuator combined with a processing unit and a communication interface. As sensors and actuators become more complex they provide support for various modes of operation and interfacing. Some applications require additionally fault tolerance and distributed computing . Such high level functionality can be achieved by adding an embedded microcontroller to the classical sensor actuator, which increases the ability to cope with complexity at a fair price. In the machine vision field, a single compact unit which combines the imaging functions and the complete image processing functions is often called a smart sensor. They are often made using CMOS , VLSI techonology and may contain MEMS ref http ieeexplore.ieee.org xpl freeabs all.jsp?arnumber 6011700 ref devices leading to lower cost. They may provide full digital outputs for easier interface or they may provide quasi digital outputs like pulse width modulation . Image Smart sensors.jpg thumbnail 500px Smart sensor Overview Advantages Compact Higher reliability Lower cost Can be done using existing cmos processes Ease of use electronic data storage self indication auto correction auto display See also IEEE 1451 Transducer electronic data sheet TransducerML SensorML http spectrum.ieee.org computing hardware smart sensors References reflist Category Transducers electronics stub ... more details
unreferenced date November 2011 Image Orthomode transducer 01.jpg thumb right 200px Orthomode transducer, VSAT K sub u sub band Image ODU 03.jpg thumb right 200px Outdoor unit, includes feed horn , OMT, Low noise block converter LNB and Block Up Converter BUC Image Orthogonal Mode Transduceur.jpg thumb 200px right Orthomode transducer Portenseigne, France Image OMT 02.jpg thumb right 200px Orthomode transducer, vertical and horizontal polarity Image OMT Polarisation Circuleur Feed Horn.jpg thumb 200px Antenna side of OMT An orthomode transducer is a microwave duct component of the class of microwave circulators. It is commonly referred to as an OMT , and commonly referred as a polarisation duplexer . Such adevice may be part of a VSAT antenna feed . Orthomode transducers serve either to combine or to separate two microwave signal paths. One of the paths forms the uplink , which is transmitted over the same waveguide electromagnetism waveguide as the received signal path, or downlink path. For VSAT modems the transmission and reception paths are at 90 to each other, or in other words, the signals are orthogonally polarised with respect to each other. This orthogonal shift between the two ... guide port of the OMT junction device. Orthomode transducer s are used in dual polarised Very small ... are at 90 to each other, is known as an Orthogonal Mode Transducer OMT . In the VSAT Ku band K sub u sub band of operation case, a typical OMT Orthomode Transducer provides a 40dB isolation between each ... of an outdoor unit. Training VSAT specific training that demonstrates the use of the Orthomode Transducer OMT http www.skyvision.net glossary omt orthomode transducer VSAT Installation Manual Video Presentation with explanation of the Orthomode Transducer OMT External links http www.satellite internet ... Transducer OMT Category Antennas Category Transducers Category Communication circuits Category Satellite television de Orthomode Transducer fr Orthogonal Mode Transducer ... more details
Orphan date February 2009 A Wind Transducer is a device used by sailors to receive a real time measurement of wind speed and direction. A wind transducer is usually mounted on the masthead of a sailboat and is occasionally used by power boats too. The wind speed and direction measurements are more critical to sail boats than to power boats. Sailors rely on the wind speed and direction to help with navigation and pilotage . These devices can be calibrated to measure the true wind speed and the apparent wind speed speed that a sailor would feel . Sail boats can sail at max 45 degrees close to the wind and will sail faster on a reach than when at closest to the wind. Wind Transducers are usually wired to the cock or head though wireless versions are becoming steadily more popular due to the reduced installation time required. Unsourced image removed Image Wind Transducer.jpg Unreferenced date June 2007 Category Transducers Category Sailing equipment ... more details
A tactile transducer or bass shaker is a device which is made on the principle that low bassline bass frequencies can be felt as well as heard. A shaker transmits low frequency vibrations into various surfaces so that they can be felt by people. This is called tactile sound . Tactile transducers may augment or in some cases substitute for a subwoofer . A bass shaker is meant to be firmly attached to some surface such as a seat, couch or floor. The shaker houses a small weight which is driven by a voice coil similar to those found in dynamic loudspeakers. The voice coil is driven by a low frequency audio signal from an amplifier common shakers typically handle 25 to 50 watt s of amplifier power. The voice coil exerts force on both the weight and the body of the shaker, with the latter forces being transmitted into the mounting surface. Tactile transducers may be used in a home cinema home theater , a commercial movie theater, or for special effects in an arcade game , amusement park ride or other application. Related to Bass Shakers are a newer type of Tactile Transducer referred to as linear actuator Linear Actuators . These piston like electromagnetic devices are said to transmit motion in a direct and lossless fashion. Linear Actuators directly and physically lift home theater seating in the vertical plane rather than transferring vibrations by mounting within a seat, platform or floor . This technology is said to transmit a high fidelity sound motion augmentation, whereas Shakers may require heavy equalization and or multiple units to approach a realistic effect. Fact date February 2007 There are other products now on the market which employ hydraulic long throw linear actuators and outboard motion processors for home applications as popularized in virtual reality rides. These products differ radically from tactile transducers in that they require the manual composition ... TADS DEFAULTSORT Tactile Transducer Category Transducers technology stub ... more details
In computer science , Levenshtein automata for a formal language are the family of finite state automata that can recognize the set V of all string computer science Formal theory word s in the language for which the Levenshtein distance to an arbitrary word w does not exceed a particular constant. Levenshtein transducers are extended Levenshtein automata that can in addition generate all strings in V at a fixed Levenshtein distance from a given w . A Levenshtein automaton for W can be constructed in linear time with respect to the length of W , and can identify V in less time than would be needed if the Levenshtein distance to W was calculated for each word in the language a problem with quadratic time complexity . Since Levenshtein automata are finite state machines, they can be described in some regular expression frameworks and finite state algebra applies to them. In particular, Levenshtein transducers can be composed with other finite state transducer s. Experimental implementations of the Levenshtein automaton exist in Python ref Barrette Lapierre, Jean Philippe. http sites.google.com site rrettesite moman Moman . May 14, 2009. Retrieved on 2010 10 29. ref ref Johnson, Nick. http blog.notdot.net 2010 07 Damn Cool Algorithms Levenshtein Automata Damn Cool Algorithms Levenshtein Automata . July 28, 2010. Retrieved on 2010 10 29. ref and Java ref McCandless, Mike. http blog.mikemccandless.com 2011 03 lucenes fuzzyquery is 100 times faster.html?showComment 1308532216672 c7320879082817729938 Lucene s FuzzyQuery is 100 times faster in 4.0 . March 24, 2011. Retrieved on 2011 06 23. ref Footnotes references External links Ahmed Hassan, Sara Noeman and Hany Hassan 2008 . http citeseerx.ist.psu.edu viewdoc download?doi 10.1.1.138.6212&rep rep1&type pdf Language Independent Text Correction using Finite State Automata . Proc. IJCNLP. Petar N. Mitankin 2005 . http www.fmi.uni sofia.bg fmi logic theses mitankin en.pdf Universal Levenshtein Automata. Building and Properties ... more details
Merge to IEEE 1451 date July 2011 A Transducer Electronic Data Sheet TEDS is a standardized method of storing transducer sensor s or actuator s identification, calibration, correction data, and manufacturer related information ref cite web url http standards.ieee.org regauth 1451 IEEE 1451d4 Templates Tutorial 061804.doc title An Overview of IEEE 1451.4 Transducer Electronic Data Sheets TEDS publisher ieee.org accessdate 2005 11 28 ref . TEDS formats are defined in the IEEE 1451 set of Smart transducer interface standards developed by the IEEE Instrumentation and Measurement Society s Sensor Technology Technical Committee that describe a set of open, common, network independent communication interfaces for connecting transducers to microprocessors, instrumentation systems, and control field networks. One of the key elements of the IEEE 1451 standards is the definition of TEDS for each transducer. The TEDS can be implemented as a memory device attached to the transducer and containing information needed by a measurement instrument or control system to interface with a transducer. TEDS can, however, be implemented in two ways. First, the TEDS can reside in embedded memory, typically an EEPROM , within the transducer itself which is connected to the measurement instrument or control system. Second, a virtual TEDS can exist as a data file accessible by the measurement instrument or control system. A virtual TEDS extends the standardized TEDS to legacy sensors and applications where embedded memory may not be available. See also Datasheet CANopen Electronic Device Description CANopen EDS IEEE 1451 SensorML Serial presence detect Smart transducer TransducerML References reflist colwidth 32em External links http ieeexplore.ieee.org xpl standards.jsp?findtitle 1451&letter 1451&opentree on IEEE Standard for a Smart Transducer Interface for Sensors and Actuators http ieeexplore.ieee.org ... smart transducer interface standard What is a smart transducer? http standards.ieee.org regauth 1451 ... more details
A finite state transducer FST is a finite state machine with two tapes an input tape and an output tape ... is known as the class of regular language s. The two tapes of a transducer are typically viewed as an input tape and an output tape. On this view, a transducer is said to transduce i.e., translate the contents ... one output for each input string. A transducer may also produce no output for a given input string, in which case it is said to reject the input. In general, a transducer computes a relation mathematics ... called cascade , where transducers for various operations are combined into a single transducer by repeated ... transducer T is a 6 tuple Q , , , I , F , such that Q is a finite set , the set of states .... NOTE This definition of finite transducer is also called letter transducer Roche and Schabes ... transitions in order. The behavior of the transducer T is the rational relation T defined as follows ... very useful for machine learning applications. A Weighted Finite State Transducer WFST over a semiring ... Union set theory Union . Given transducers T and S , there exists a transducer math T cup S math such that math ... transducers T and S , there exists a transducer math T cdot S math such that math wx T cdot S yz math if and only if math w T y math and math x S z math . Kleene closure . Given a transducer T , there exists a transducer math T math with the following properties 1 math epsilon T epsilon math 2 if math ... of relations Composition . Given a transducer T on alphabets and and a transducer S on alphabets and , there exists a transducer math T circ S math on and such that math x T circ S z math if and only ... the output tape. The first projection, math pi 1 math is defined as follows Given a transducer ... similarly. Determinization . Given a transducer T , we want to build an equivalent transducer ... used in the weighted case as well as a general property on the structure of the transducer ... properties of finite state transducers It is decidable whether the relation T of a transducer ... more details
Multiple issues jargon February 2008 orphan February 2009 An Ortho Mode Transducer , OMT for short, is a waveguide component that is designed to separate orthogonal polarizations. Most often this is used close to an Antenna radio antenna feed horn in order to allow transmit and receive signals to operate on separate Polarization waves polarizations . ref http www.sasltd.com T faq faq2.html o SAS Ltd Glossary ref See also Waveguide electromagnetism Feedhorn References reflist Category Radio electronics Sound tech stub ... more details
Orphan date February 2009 A log space transducer LST is a type of Turing machine used for log space reductions. A log space transducer has three tapes A read only input tape. A read write work tape. A write only, write once output tape. A language A is said to be log space reducible to a language B if there exists a LST which will convert an input from problem A into an input to problem B, using logarithmic space on the work tape, such that the input is in A iff the output is in B. This seems like a rather convoluted idea, but it has two useful properties that are desirable for a reduction The property of transitivity holds. A reduces to B and B reduces to C implies A reduces to C . If A reduces to B, and B is in L complexity L , then we know A is in L complexity L . References Szepietowski, Andrzej 1994 , http books.google.com books?id vNPuNOo9BUYC&pg PA19&lpg PA19&dq log space transducer&source web&ots zzDCxeVb87&sig cgzOPS3ZJaIo1kYboPGmvn4jdos&hl en&sa X&oi book result&resnum 1&ct result Turing Machines with Sublogarithmic Space , Springer Press , ISBN 3540583556. Retrieved on 2008 12 03. Category Turing machine Comp sci stub ... more details
Image EMATDIA.JPG thumb 300px An EMAT ultrasonic transducer UT shown with a conventional piezoelectric UT. Electromagnetic acoustic transducer EMAT is a transducer for non contact sound generation and reception using electromagnetic mechanisms. EMAT is an Ultrasound ultrasonic nondestructive testing Nondestructive testing NDT method where couplant is not needed since the sound is directly generated in the material underneath the transducer. Due to this couplant free feature, EMAT is particularly useful for the NDT applications of automated inspection, hot and cold environments. EMAT is an ideal transducer to generate Shear Horizontal SH bulk wave mode, Surface Wave, Lamb Wave and all sorts of other guided wave modes in metallic and or ferromagnetic materials ref R.B. Thopmson, Physical Principles of Measurements with EMAT Transducers, Ultrasonic Measurement Methods, Physical Acoustics Vol XIX, Edited by R.N. Thurston and Allan D. Pierce, Academic Press, 1990 ref ref name Innerspec www.innerspec.com ref . As an emerging Ultrasonic testing UT technique, EMAT can be used for both thickness measurement,flaw detection, and material property characterization. After decades of research and development ... ref Basic Components in EMAT Transducer There are two basic components in an EMAT transducer ... of the electric coil, the properties of the test material, relative position between the transducer and the test part, and the excitation signal for the transducer. Magnetostriction A ferromagnetic material ... between the transducer and the test material is not required. Dry Inspection. Since no couplant is needed ... scale. Easier for sensor deployment. Using piezoelectric transducer, the wave propagation angle in the test ..., Improved longitudinal EMAT transducer for elastic constant extraction, in Proc. IEEE Inter. Freq ... Examinations Using Electromagnetic Acoustic Transducer EMAT Technology ASTM E1962 98 Standard Test Methods for Ultrasonic Surface Examinations Using Electromagnetic Acoustic Transducer EMAT Technology ... more details
Tumor associated calcium signal transducer TACSTD is the name of two human proteins and the genes that encode them Tumor associated calcium signal transducer 1 Epithelial cell adhesion molecule, EpCAM Tumor associated calcium signal transducer 2 disambig ... more details
Merge from Transducer electronic data sheet date July 2011 IEEE 1451 is a set of smart transducer interface standards developed by the Institute of Electrical and Electronics Engineers IEEE Instrumentation and Measurement Society s Sensor Technology Technical Committee that describe a set of open, common ... is the definition of transducer electronic datasheet data sheet s TEDS for each transducer. The TEDS is a memory device attached to the transducer, which stores transducer identification ... of standards is to allow the access of transducer data through a common set of interfaces whether ... title IEEE Standard for a Smart Transducer Interface for Sensors and Actuators publisher IEEE ... Standard for a Smart Transducer Interface for Sensors and Actuators Common Functions, Communication Protocols, and Transducer Electronic Data Sheet TEDS Formats 1451.1 1999 IEEE Standard for a Smart Transducer Interface for Sensors and Actuators Network Capable Application Processor Information Model 1451.2 1997 IEEE Standard for a Smart Transducer Interface for Sensors and Actuators Transducer to Microprocessor Communication Protocols & TEDS Formats 1451.3 2003 IEEE Standard for a Smart Transducer ... Systems 1451.4 2004 IEEE Standard for a Smart Transducer Interface for Sensors and Actuators Mixed Mode Communication Protocols & TEDS Formats 1451.5 2007 IEEE Standard for a Smart Transducer Interface for Sensors and Actuators Wireless Communication Protocols & Transducer Electronic Data Sheet TEDS Formats 1451.7 2010 IEEE Standard for a Smart Transducer Interface for Sensors and Actuators Transducers to Radio Frequency Identification RFID Systems Communication Protocols and Transducer Electronic ... Fi branded products Near Field Communication Personal Area Network Smart transducerTransducer ...&letter 1451&opentree on IEEE Standard for a Smart Transducer Interface for Sensors and Actuators ... 1451 Networked smart transducer interface standard What is a smart transducer? IEEE standards DEFAULTSORT ... more details
A position sensor is any device that permits position measurement. It can either be an absolute position sensor or a relative one displacement sensor . Position sensors can be linear, angular, or multi axis. Some position sensors available today Capacitive transducer Eddy current sensor Grating sensor Hall effect sensor Inductive sensor Inductive Non Contact Position Sensors Laser Doppler Vibrometer optical Linear variable differential transformer LVDT Multi axis displacement transducer Photodiode array Piezo electric transducer Piezo electric Potentiometer Proximity sensor optical Rotary encoder angular Seismic displacement pick up String Potentiometer also known as string pot, string encoder, cable position transducer Literature David S. Nyce Linear Position Sensors Theory and Application , New Jersey, John Wiley & Sons Inc. 2003 See also Linear encoder Rotary encoder Category Measuring instruments Category Sensors et Positsiooniandur fr Capteur de position ... more details
use a transducer which generates sound waves in the ultrasonic range, above 18,000 hertz, by turning ... field of a non focusing 4MHz ultrasonic transducer with a near field length of N 67mm in water. The plot ... Focus30mm.png thumb right Sound pressure field of the same ultrasonic transducer 4MHz, N 67mm with the transducer surface having a spherical curvature with the curvature radius R 30mm File Ultrasonic Transducer Naming Method.png thumb Ultrasonic Transducer General Naming Method An ultrasonic transducer is a device that converts energy into ultrasound , or sound waves above the normal range of human hearing. While technically a dog whistle is an ultrasonic transducer that converts mechanical ... to Piezoelectricity piezoelectric transducer s that convert electrical energy into sound. Piezoelectric ... very high frequency sound waves. The location at which a transducer focuses the sound can be determined by the active transducer area and shape, the ultrasound frequency, and the sound velocity of the propagation medium. The example shows the sound fields of an unfocused and a focusing ultrasonic transducer in water. Ultrasonic Transducer Naming Method The name of Ultrasonic Transducer contains several ... 30D 30HN PZT8 BU Enterprise Code C Cleaning Transducer 22 22KHZ 30 30W D Two Piezoelectric Ceramic 30 Diameter of Piezoelectric Ceramic H Shape of Transducer N Without Hole for the Transducer PZT8 PZT4 .... The transducer may be passed over the surface of the body or inserted into a body opening ... positioning system to hold the ultrasonic transducer. Air detection sensors are used in various roles ... in commercially available ultrasonic cleaning devices. An ultrasonic transducer is affixed to a stainless ... alpha.aspx?CdrID 367430 Ultrasound transducer entry in the public domain NCI Dictionary of Cancer Terms ... ultrasonic transducer technical Ultrasonic Transducer Technical Info http www.sensorsmag.com sensors ... Transducer Info Center . http www.maxbotix.com Outdoor Ultrasonic Sensors Category Ultrasound Category ... more details
A PIND test is a Particle Impact Noise Detection test. According to method 2020.8 of MIL STD 883 , the purpose of a PIND test is to detect loose particles inside an electronics device cavity. The test provides a nondestructive means of identifying those devices containing particles of sufficient mass that, upon impact within the cavity, excite the transducer . Category Nondestructive testing ... more details
Orphan date February 2009 The term tonpilz or acoustic mushroom may refer to a certain type of underwater electro acoustic transducer. By sandwiching active i.e. piezoelectricity piezoelectric or magnetostriction magnetostrictive materials between a light, stiff radiating head mass and a heavy tail mass, the transducer can effectively operate as either a projector source or a hydrophone underwater acoustic receiver . The transducer s size, odd shape, and acoustic projection capabilities have earned it the moniker tonpilz , from the German words ton tone and pilz mushroom and from the figurative similarity. ref name Wilson O.B. Wilson, Introduction to Theory and Design of Sonar Transducers , Peninsula Publishing, 1988 ref Typically, tonpilz transducers are used in sonar applications. To maximize efficiency transducers are often placed in arrays a grid of sometimes hundreds of transducers. This arrangement also allows for beamforming and steering. Transducers of this form also lend themselves to compensation against the hydrostatic pressures encountered in sonar, particularly for submarine applications. ref name Thomson CSF, EP0473480 cite patent EP 0473480 Electroacoustic transducer for use under water and comprising a system for automatically compensating the hydrostatic pressure. ref Acoustic mushroom may also refer to a passive ceiling or wall treatment applied to the insides of concert auditoria, including the Royal Albert Hall . References Reflist Bibliography D Stansfield, Underwater Electroacoustic Transducers Peninsula Publishing, 1991 Category Sonar ... more details
The abbreviation DCCT can stand for Diabetes control and complications trial Zero flux Direct Current Current Transformer or direct current DC Current Transformer, a current to voltage transducer , employed when measurement of very high current up to several dozen of kA is required. disambiguation ... more details
orphan date February 2009 For aircraft fuel flow meters, K factor refers to the number of pulses expected for every one gallon of fuel passing through the transducer at optimum Cruise flight cruise settings. It is expressed in thousands e.g., 29.6 29,600 pulses . Category Aerodynamics engineering stub ... more details
Loudspeaker may refer to A loudspeaker , an electroacoustic transducer that converts an electrical signal into sound The Loudspeaker , a 1934 American film directed by Joseph Santley Loudspeaker album Loudspeaker album , a 2006 instrumental album by the guitarist Marty Friedman Loudspeaker film Loudspeaker film , a 2009 Malayalam Cinema directed by Jayaraj starring Mammootty disambig ... more details
SSPA refers to a Solid State Power Amplifier used in satellite broadcasting systems. See also Block upconverter BUC Orthomode transducer OMT Signal to noise ratio Bias tee Duo LNB Low noise amplifier LNA Transmit and receive integrated assembly TRIA DEFAULTSORT Sspa Category Antennas ... more details
wiktionary microphone A microphone is an acoustic to electric transducer or sensor that converts sound into an electrical signal. Microphone may also refer to Microphone Darin song Microphone Darin song Microphone Slaughterhouse song Microphone Slaughterhouse song Microphone film Microphone film , a 2010 Egyptian independent film Microphone Records , a Latvian record label and distribution company disambiguation ... more details
Orphan date February 2009 Vectra is a brand of Liquid Crystal Polymer LCP manufactured by Ticona a subsidiary of Celanese Physical properties of Vectra were tested in the report Non Metallic Transducer Mounting Brackets by the US Naval Research Laboratory in 1992, and the resulting test data is publicly available from the external link below. External links http www.ticona.co.uk vectra Manufacturer s site, UK http www.ticona.com index products liquid crystal.htm Manufacturer s site, global http handle.dtic.mil 100.2 ADA253297 Non Metallic Transducer Mounting Brackets, US Naval Research Laboratory Category Liquid crystals Material stub ... more details
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