NON-CONTINUOUS RESONANT POSITION FEEDBACK SYSTEM
A system and method for sensing position of an oscillating moving element. The inventive position sensor includes a first arrangement for sampling the position of the element at first positions thereof and providing samples in response thereto and a second arrangement for calculating other positions...
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| creator | POLLACK, THOMAS H KIEFFER, MICHAEL H HON, ROBERT C KIRKCONNELL, CARL S |
| description | A system and method for sensing position of an oscillating moving element. The inventive position sensor includes a first arrangement for sampling the position of the element at first positions thereof and providing samples in response thereto and a second arrangement for calculating other positions of the element using the sample of the first position. In the illustrative application, the first arrangement includes an LED and a photodiode and the moving element is a piston of a long-life cryogenic cooler. A processor receives samples from the photodiode and solves an equation of motion therefor. The equation of motion is P(t) = A sin( t + ) + B, where P(t) = the position of the element; A = position waveform amplitude; B = position waveform DC Offset; ?= angular frequency of operation; t = time; and ?= position waveform phase.
L'invention concerne un système et un procédé de détection de position d'un élément mobile oscillant. Le capteur de position selon la présente invention comprend un premier ensemble pour échantillonner la position de l'élément à une première position de ce dernier, et fournir en réponse des échantillons à un second ensemble qui calcule les autres positions de l'élément à partir de l'échantillon de la première position. Dans l'application citée à titre d'exemple, le premier ensemble comprend une DEL et une photodiode, et l'élément mobile est le piston d'un refroidisseur cryogénique à longue durée de vie. Un processeur reçoit des échantillons de la part de la photodiode et résout une équation de mouvement pour celle-ci. L'équation de mouvement est P(t) = A sin( t + ) + B, dans laquelle P(t) = la position de l'élément; A = amplitude signal de position; B = décalage en continu du signal de position, ? = fréquence angulaire de fonctionnement; t = temps; et ? = phase du signal de position. |
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L'invention concerne un système et un procédé de détection de position d'un élément mobile oscillant. Le capteur de position selon la présente invention comprend un premier ensemble pour échantillonner la position de l'élément à une première position de ce dernier, et fournir en réponse des échantillons à un second ensemble qui calcule les autres positions de l'élément à partir de l'échantillon de la première position. Dans l'application citée à titre d'exemple, le premier ensemble comprend une DEL et une photodiode, et l'élément mobile est le piston d'un refroidisseur cryogénique à longue durée de vie. Un processeur reçoit des échantillons de la part de la photodiode et résout une équation de mouvement pour celle-ci. L'équation de mouvement est P(t) = A sin( t + ) + B, dans laquelle P(t) = la position de l'élément; A = amplitude signal de position; B = décalage en continu du signal de position, ? = fréquence angulaire de fonctionnement; t = temps; et ? = phase du signal de position.</description><language>eng ; fre</language><subject>ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS ; BLASTING ; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR ; ENGINEERING ELEMENTS AND UNITS ; FLUID-PRESSURE ACTUATORS ; FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS ; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS ; HEATING ; HYDRAULICS OR PNEUMATICS IN GENERAL ; LIGHTING ; MEANS FOR DAMPING VIBRATION ; MEASURING ; MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE ; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR ; MECHANICAL ENGINEERING ; PHYSICS ; SHOCK-ABSORBERS ; SPRINGS ; SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL ; TARIFF METERING APPARATUS ; TESTING ; THERMAL INSULATION IN GENERAL ; WEAPONS</subject><creationdate>2008</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20081127&DB=EPODOC&CC=WO&NR=2008143915A2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20081127&DB=EPODOC&CC=WO&NR=2008143915A2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>POLLACK, THOMAS H</creatorcontrib><creatorcontrib>KIEFFER, MICHAEL H</creatorcontrib><creatorcontrib>HON, ROBERT C</creatorcontrib><creatorcontrib>KIRKCONNELL, CARL S</creatorcontrib><title>NON-CONTINUOUS RESONANT POSITION FEEDBACK SYSTEM</title><description>A system and method for sensing position of an oscillating moving element. The inventive position sensor includes a first arrangement for sampling the position of the element at first positions thereof and providing samples in response thereto and a second arrangement for calculating other positions of the element using the sample of the first position. In the illustrative application, the first arrangement includes an LED and a photodiode and the moving element is a piston of a long-life cryogenic cooler. A processor receives samples from the photodiode and solves an equation of motion therefor. The equation of motion is P(t) = A sin( t + ) + B, where P(t) = the position of the element; A = position waveform amplitude; B = position waveform DC Offset; ?= angular frequency of operation; t = time; and ?= position waveform phase.
L'invention concerne un système et un procédé de détection de position d'un élément mobile oscillant. Le capteur de position selon la présente invention comprend un premier ensemble pour échantillonner la position de l'élément à une première position de ce dernier, et fournir en réponse des échantillons à un second ensemble qui calcule les autres positions de l'élément à partir de l'échantillon de la première position. Dans l'application citée à titre d'exemple, le premier ensemble comprend une DEL et une photodiode, et l'élément mobile est le piston d'un refroidisseur cryogénique à longue durée de vie. Un processeur reçoit des échantillons de la part de la photodiode et résout une équation de mouvement pour celle-ci. L'équation de mouvement est P(t) = A sin( t + ) + B, dans laquelle P(t) = la position de l'élément; A = amplitude signal de position; B = décalage en continu du signal de position, ? = fréquence angulaire de fonctionnement; t = temps; et ? = phase du signal de position.</description><subject>ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS</subject><subject>BLASTING</subject><subject>DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR</subject><subject>ENGINEERING ELEMENTS AND UNITS</subject><subject>FLUID-PRESSURE ACTUATORS</subject><subject>FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS</subject><subject>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</subject><subject>HEATING</subject><subject>HYDRAULICS OR PNEUMATICS IN GENERAL</subject><subject>LIGHTING</subject><subject>MEANS FOR DAMPING VIBRATION</subject><subject>MEASURING</subject><subject>MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE</subject><subject>MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR</subject><subject>MECHANICAL ENGINEERING</subject><subject>PHYSICS</subject><subject>SHOCK-ABSORBERS</subject><subject>SPRINGS</subject><subject>SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL</subject><subject>TARIFF METERING APPARATUS</subject><subject>TESTING</subject><subject>THERMAL INSULATION IN GENERAL</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2008</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZDDw8_fTdfb3C_H0C_UPDVYIcg3293P0C1EI8A_2DPH091Nwc3V1cXJ09lYIjgwOcfXlYWBNS8wpTuWF0twMym6uIc4euqkF-fGpxQWJyal5qSXx4f5GBgYWhibGloamjkbGxKkCAPrXJ6M</recordid><startdate>20081127</startdate><enddate>20081127</enddate><creator>POLLACK, THOMAS H</creator><creator>KIEFFER, MICHAEL H</creator><creator>HON, ROBERT C</creator><creator>KIRKCONNELL, CARL S</creator><scope>EVB</scope></search><sort><creationdate>20081127</creationdate><title>NON-CONTINUOUS RESONANT POSITION FEEDBACK SYSTEM</title><author>POLLACK, THOMAS H ; KIEFFER, MICHAEL H ; HON, ROBERT C ; KIRKCONNELL, CARL S</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_WO2008143915A23</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre</language><creationdate>2008</creationdate><topic>ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS</topic><topic>BLASTING</topic><topic>DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR</topic><topic>ENGINEERING ELEMENTS AND UNITS</topic><topic>FLUID-PRESSURE ACTUATORS</topic><topic>FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS</topic><topic>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</topic><topic>HEATING</topic><topic>HYDRAULICS OR PNEUMATICS IN GENERAL</topic><topic>LIGHTING</topic><topic>MEANS FOR DAMPING VIBRATION</topic><topic>MEASURING</topic><topic>MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE</topic><topic>MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR</topic><topic>MECHANICAL ENGINEERING</topic><topic>PHYSICS</topic><topic>SHOCK-ABSORBERS</topic><topic>SPRINGS</topic><topic>SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL</topic><topic>TARIFF METERING APPARATUS</topic><topic>TESTING</topic><topic>THERMAL INSULATION IN GENERAL</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>POLLACK, THOMAS H</creatorcontrib><creatorcontrib>KIEFFER, MICHAEL H</creatorcontrib><creatorcontrib>HON, ROBERT C</creatorcontrib><creatorcontrib>KIRKCONNELL, CARL S</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>POLLACK, THOMAS H</au><au>KIEFFER, MICHAEL H</au><au>HON, ROBERT C</au><au>KIRKCONNELL, CARL S</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>NON-CONTINUOUS RESONANT POSITION FEEDBACK SYSTEM</title><date>2008-11-27</date><risdate>2008</risdate><abstract>A system and method for sensing position of an oscillating moving element. The inventive position sensor includes a first arrangement for sampling the position of the element at first positions thereof and providing samples in response thereto and a second arrangement for calculating other positions of the element using the sample of the first position. In the illustrative application, the first arrangement includes an LED and a photodiode and the moving element is a piston of a long-life cryogenic cooler. A processor receives samples from the photodiode and solves an equation of motion therefor. The equation of motion is P(t) = A sin( t + ) + B, where P(t) = the position of the element; A = position waveform amplitude; B = position waveform DC Offset; ?= angular frequency of operation; t = time; and ?= position waveform phase.
L'invention concerne un système et un procédé de détection de position d'un élément mobile oscillant. Le capteur de position selon la présente invention comprend un premier ensemble pour échantillonner la position de l'élément à une première position de ce dernier, et fournir en réponse des échantillons à un second ensemble qui calcule les autres positions de l'élément à partir de l'échantillon de la première position. Dans l'application citée à titre d'exemple, le premier ensemble comprend une DEL et une photodiode, et l'élément mobile est le piston d'un refroidisseur cryogénique à longue durée de vie. Un processeur reçoit des échantillons de la part de la photodiode et résout une équation de mouvement pour celle-ci. L'équation de mouvement est P(t) = A sin( t + ) + B, dans laquelle P(t) = la position de l'élément; A = amplitude signal de position; B = décalage en continu du signal de position, ? = fréquence angulaire de fonctionnement; t = temps; et ? = phase du signal de position.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS BLASTING DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR ENGINEERING ELEMENTS AND UNITS FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MEANS FOR DAMPING VIBRATION MEASURING MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR MECHANICAL ENGINEERING PHYSICS SHOCK-ABSORBERS SPRINGS SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL TARIFF METERING APPARATUS TESTING THERMAL INSULATION IN GENERAL WEAPONS |
| title | NON-CONTINUOUS RESONANT POSITION FEEDBACK SYSTEM |
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