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Topic: Position error

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	Position error - Wikipedia, the free encyclopedia
		This "position error" is mainly due to errors in sensing static pressure.
		Because Bernoulli's principle states that total pressure is constant along a streamline, a pitot tube that is away from the boundary layer and approximately aligned with the local airflow should not cause much position error.
		Position error is typically small (a few percent), and, for small planes, the IAS will be lower than CAS at slow speeds and higher than CAS at high speeds.
	en.wikipedia.org /wiki/Position_error (194 words)

	Position error sensing and feedback apparatus and method - Patent 4792228
		The position error sensing and feedback apparatus of claim 1, wherein said apparatus is integrated into said positioning device such that its structure does not substantially interfere with the ordinary operation of said device, and wherein said apparatus can be selectively utilized in conjunction with the operation of said device.
		The positional and orientational error sensing and feedback apparatus of claim 17, wherein said error detector means comprises optical structures for measuring angular and translational deviations relative said polarized laser beam, as well as rotational deviations relative the transmission axes of said polarized beam.
		Dual axis position sensor 45 has a photo-sensitive surface with electrodes A through D spaced about its peripheral edge, and light from the beam impinging the photodiode produces a photocurrent which is delivered to the four electrodes, and the current at each electrode is inversely proportional to distance from the light spot to that electrode.
	www.freepatentsonline.com /4792228.html (6740 words)

	Head position error compensation in disk drives - Patent 5805373
		During the normal operation, the position error is measured in a predetermined interval (such as one or several months) and the data of the measurement result are stored in the position error amount table at the time of the operation in the EEPROM 40.
		When measurement of the position error amount during the normal operation is made, the data are not written to the medium, and the data of the position error amount of the medium stored at the time of shipment from the factory are as such stored.
		The amount of the position error may be calculated from a measurement value of at least one position (for example, the measurement value of the inner cylinder) and from the.
	www.freepatentsonline.com /5805373.html (7957 words)

	Method and apparatus for the correction of the position error of a multifaceted rotating mirror - Patent 4404596
		Positional errors are corrected for a light beam which is deflected point and line-wise across a scanning surface by a polyhedral rotating mirror.
		Due to optical and geometrical errors of the polyhedral rotating mirror and the positional errors of the light beam on the surface which are caused thereby, the reproduction quality, however, is considerably decreased.
		For the determination of the positional errors in a test phase before recording, with the polyhedral rotating mirror 13 rotating during the test phase, the flat bed recording support 18 is shifted in the Y-direction to such a degree that the measuring elements 28a, 28b and 28c, as illustrated in FIG.
	www.freepatentsonline.com /4404596.html (5285 words)

	* Error coin - (Numismatic): Definition (Site not responding. Last check: 2007-08-19)
		Error coins such as off-center strikes follow the same rules as their non-error counterparts in terms of grading.
		An error coin is a coin which has been made improperly and issued accidentally as the result of some malfunction or failure of the operation in some phase of the minting process.
		The collecting of error coins Mint-made errors are errors in a coin made by the mint during the minting process.
	en.mimi.hu /numismatic/error_coin.html (716 words)

	Fuzzy controller for an actuator and the controlling method thereof - Patent 5598304
		When the actuator is in track seeking operation, the actuator is accelerated or decelerated based on a velocity error value between an actual velocity value of the actuator and a target velocity value determined from a velocity profile according to the position error.
		Position signal X is inputted to a velocity detection circuit 210 from which a velocity signal V of actuator 227 is generated.
		Position error value P.sub.error from first error generator 42 is inputted to a velocity profile unit 54.
	www.freepatentsonline.com /5598304.html (4302 words)

	In-situ linearization of magnetic read/write head transducer position error signal - US Patent 6700731 (Site not responding. Last check: 2007-08-19)
		wherein obtaining comprises obtaining the position error signal based on (i) the predetermined offset, (ii) at least one of said second plurality of different position offsets, and (iii) at least one of said second plurality of position error signals, for the zone that the track is located in.
		The signals produced by the servo bits are typically demodulated into position offset signals which are used to determine the position of the head relative to the track, and to move the actuator arm if the head is not located on the track centerline.
		For example, as the head is moved from the null PES to position "a" to the right of the track centerline 520, the difference between the actual PES "c" and the ideal PES "b" is the error value, which may be substantial to decrease drive performance.
	www.patentstorm.us /patents/6700731.html (4754 words)

	Position Error Modeling for Automated Construction Manipulators (Site not responding. Last check: 2007-08-19)
		However, position control errors caused by several factors are significant in these types of construction equipment.
		Errors are amplified if the manipulator and its operator must measure and locate objects in the equipment’s fixed reference frame.
		It was shown that with an integrated multivariable regression model, about 30% of the mean positioning error of the LSM can be reduced without the use of fixed external reference systems.
	www.pubs.asce.org /WWWdisplay.cgi?0405494 (220 words)

	Sam Wormley's GPS Errors & Estimating Your Receiver's Accuracy
		The probability of horizontal error is within an ellipse of radius 2drms ranges between 0.95 and 0.98 depending on the ratio of the ellipse semi-axes.
		Consequently, the residual satellite clock error, at 2.1 m, is not the dominant error; in fact, the largest error is expected to be the mis-modeling of the ionosphere, at 4.0 m.
		The 41-m horizontal error is a one-sigma result; under the existing agreement between the U.S. Department of Transportation (DOT) and the U.S. Department of Defense (DOD), the 2 DRMS horizontal error is to be less than 100 m.
	www.edu-observatory.org /gps/gps_accuracy.html (2969 words)

	Method for correcting position error in navigation system Number:6,931,322 from the United States Patent and Trademark ...
		Providing incorrect current positions of the moving object or providing position information discontinuously may cause serious damages on the safety of an operator of the moving object, so the determination of current positions of the moving object is very important.
		Still another object of the present invention is to provide a method for correcting position error in a navigation system, in which measurement position of a moving object is used to find a node between interpolation points of a candidate link having a highest possibility to be matched on a map.
		In summary, according to the method for correcting position error in a navigation system of the present invention, the current position measurement of the moving object is corrected to a previously map matched displacement-corrected value, and the current position of the moving object is matched with the link on the digital map.
	www.linkgrinder.com /Patents/Method_for_correcting_position_error__6931322.html (4109 words)

	UACES: Publications: GPS/Map Position Coordinate Issues: GPS Position Accuracy (Site not responding. Last check: 2007-08-19)
		This fact sheet is limited to horizontal position errors, where the latitude and longitude are slightly different from the “true” latitude and longitude of the position.
		The position error, expressed as a distance, is approximately 212 feet.
		The lat/long coordinates of the “X marks the spot” positions on the north end of the pond and on a small bridge at the southwest corner of the pond were obtained by collecting and storing about 100 latitudes and longitudes for each position.
	www.uaex.edu /Other_Areas/publications/HTML/FSA-1033.asp (2275 words)

	(WO 00/25313) ADAPTIVE FILTER FOR REDUNDANT SENSOR SAMPLED MAGNETIC TAPE DRIVE CONTROL SYSTEM (Site not responding. Last check: 2007-08-19)
		A position error signal is then generated for each servo read element indicative of a position of the servo read element relative to the servo track.
		A position error signal is unexpected when at least one measured parameter based on a function of movement of the position of the servo read element relative to the servo track is greater than a predetermined threshold limit and is expected when the at least one measured parameter is lesser than the predetermined threshold limit.
		A position error signal for each unexpected position error signal is then predicted based on a function of the expected position error signals from the other servo read elements and historical behavior of the unexpected position error signal.
	wipo.int /cgi-pct/guest/getbykey5?KEY=00/25313.000504&ELEMENT_SET=DECL (332 words)

	System Position Error (Site not responding. Last check: 2007-08-19)
		Position errors also aggregate by the same equation, and as position error increases as
		As an example of position error, let's consider a 1D pen with an accelerometer with an error of 0.001 g (an order of magnitude less than our required resolution).
		Considering writing speeds as described in Section 2.2 and the same accelerometer error as above, letter-to-letter INS position error turns out to be about 1mm - suitable for character detection.
	xenia.media.mit.edu /~verp/projects/smartpen/node25.html (239 words)

	Garmin: GPS Glossary (Site not responding. Last check: 2007-08-19)
		A measurement of horizontal position error in feet or meters based upon a variety of factors including DOP and satellite signal quality.
		A position's distance north or south of the equator, measured by degrees from zero to 90.
		The random error, which the government can intentionally add to GPS signals, so that their accuracy for civilian use is degraded.
	www.garmin.com /aboutGPS/glossary.html (3623 words)

	Internal Position Error Correction (IPEC)
		Based on this concept, truck A frequently measures a property with slow-growing error characteristics on reference truck B (thus admitting a small error) to detect a fast-growing error on truck A (thus correcting a large error), and vice versa.
		Figure 1 shows the return position errors for the Rectangular Path Experiment under different test conditions.
		In the course of the project we also studied errors in mobile robot dead-reckoning and developed methods for measuring and reducing such errors (see work on the UMBmark procedure).
	www-personal.engin.umich.edu /~johannb/ipec.htm (673 words)

	Position error - Encyclopedia, History, Geography and Biography
		Position error - Encyclopedia, History, Geography and Biography
		This page was last modified 06:15, 25 July 2005.
		This encyclopedia, history, geography and biography article about Position error contains research on
	www.arikah.com /encyclopedia/Position_error (178 words)

	Boom Probe Position Error Corrections for Sea King Mk 50 Flight Tests - Storming Media
		Abstract: Position error has been determined for a nose-boom mounted pitot static probe installed on a Sea King Mk.
		The error is sensibly constant in the speed range 35 - 110 knots and is unchanged in climb and descent.
		Corrections to be applied to indicated nose boom values are 7.5 knots in velocity, and up to 80 ft. in altitude.
	www.stormingmedia.us /82/8249/A824901.html (98 words)

	Integrated Position Error (S1 to S6) - SDP/SI Tech Library D220-T100 (Site not responding. Last check: 2007-08-19)
		From equation 51 the integrated position error from the load shaft S-1 to the sensor S-8 measured at S-1 is:
		The above values are maxima and represent the worst possible results necessitating all error sources to be at their extreme tolerance values.
		Details of how to derive statistical distributions of gear train backlash, transmission error, and IPE are given in Reference 5 in the section on GEARS.
	www.sdp-si.com /D220/HTML/D220T100.htm (184 words)

	In Multiple-Step Gaze Shifts: Omnipause (OPNs) and Collicular Fixation Neurons Encode Gaze Position Error; OPNs Gate ...
		In Multiple-Step Gaze Shifts: Omnipause (OPNs) and Collicular Fixation Neurons Encode Gaze Position Error; OPNs Gate Saccades.
		was positioned vertically on the midline of the cranium surface
		The gaze and head coils gave signals proportional to eye and head positions in space, respectively.
	jn.physiology.org /cgi/content/full/88/4/1726 (8843 words)

	Position error in IE
		Position error in IE Relative position and floats
		I am having (another) positioning problem with Internet Explorer (works fine in Firefox).
		When I use a relative positioned div in a table cell, then the div position is not updated correctly when the table location changes.
	www.webmasterworld.com /forum83/8070.htm (228 words)

	The page cannot be found (Site not responding. Last check: 2007-08-19)
		HTTP Error 404 - File or directory not found.
		Go to Microsoft Product Support Services and perform a title search for the words HTTP and 404.
		Open IIS Help, which is accessible in IIS Manager (inetmgr), and search for topics titled Web Site Setup, Common Administrative Tasks, and About Custom Error Messages.
	www.absoluteastronomy.com /encyclopedia/p/po/position_error.htm (121 words)

	LAB 417 - Position Error Analysis
		The measured position is compared to the desired (reference) position in order to obtain the Position Error Signal (PES) (Figure 2, Trace 2).
		Runout is the term used to describe system position error sources.
		Repeatable Runout is the result of first- order effects such as error in the servo track writer or disk shift (eccentricity).
	www.lecroy.com /tm/library/LABs/LAB417 (648 words)

	SeeSat-L Jan-03 : ISS Transit Of Moon - Position Error (Site not responding. Last check: 2007-08-19)
		Eventually I worked out that the error was down to the calculation of the observers position.
		The problem is caused by using the observers geographical or geodetic latittude and not converting it to geocentric co-ordinates.
		At mid-latitudes that can result in an error of several degrees in the predicted RA DEC of a satellite.
	www.satellite.eu.org /seesat/Jan-2003/0090.html (733 words)

	"Invalid cursor position" error when using recordsets and text fields Free discussion
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	www.qaix.com /postgresql-database-development/223-817-invalid-cursor-position-error-when-using-recordsets-and-text-fields-read.shtml (915 words)

	Publications (Site not responding. Last check: 2007-08-19)
		Neath, I., and Knoedler, A. Distinctiveness and serial position effects in recognition and sentence processing.
		Nairne, J. S., Neath, I., Serra, M., and Byun, E. Positional distinctiveness and the ratio rule in free recall.
		Neath, I. Serial position effects and position error gradients in "iconic" memory.
	memory.psych.purdue.edu /pubs.shtml (1060 words)

	yet2.com - TechPak - Image position error detection technique
		A method for detecting image position errors, includes forming a first pattern with a symbol embedded therein and a second pattern which, when superpositioned on the first pattern, exposes the symbol if the misalignment between the first and second patterns exceeds a position error tolerance.
		The symbol is perceivable with the unaided eye even if the misalignment is imperceivable to the unaided eye.
		The misalignment or mis-registration is quantifiable in two dimensions to enable correction of the error.
	www.yet2.com /app/utility/external/indextechpak/11339 (222 words)

	Vertical menu position error - Mozilla only - Dev Shed
		I have a vertical menu on the left-hand side of my website, everything appears correctly when the page is first loaded but when I click on a menu item the entire div appears to shift to the left (10px).
		I am thinking that it may be something to do with the link visited properties but am not sure what.
		I have validated the css via the W3C website but there were no errors reported.
	forums.devshed.com /t205996/s.html (220 words)

	DriverHeaven.net - Screen position error. (Site not responding. Last check: 2007-08-19)
		I have tried installing modified versions of the ATI drivers (For mobiles) but these are causing screen corruption at the top of the screen, it's as if the screen is trying to display "outside" the limits of the monitor.
		I've tried it on several different monitors, both CRT and LCD but get the same error.
		I did have an older version of the Omega drivers installed and working but since a PC rebuild I've lost them, and the new version give the same problem as above.
	www.driverheaven.net /showthread.php?t=72598 (182 words)

	Struts: how to highlight error fields and position error message (Site not responding. Last check: 2007-08-19)
		In case of error handling of Struts, how to highlight error fields and how to position the error message, say, near the error field?
		The error message appears wherever you put your tag.
		You can put several of those tags different places in your JSP page, and use the "property" attribute of that tag to select error messages to be displayed.
	www.codecomments.com /message156278.html (176 words)

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