ES2146537B1 - SYSTEM OF REGISTRATION OF MOVEMENTS AND OCULAR POSITION BASED ON SENSORS OF HALL EFFECT OF APPLICATION IN SUBJECTS NOT IMMOBILIZED. - Google Patents

SYSTEM OF REGISTRATION OF MOVEMENTS AND OCULAR POSITION BASED ON SENSORS OF HALL EFFECT OF APPLICATION IN SUBJECTS NOT IMMOBILIZED.

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Publication number
ES2146537B1
ES2146537B1 ES9800893A ES9800893A ES2146537B1 ES 2146537 B1 ES2146537 B1 ES 2146537B1 ES 9800893 A ES9800893 A ES 9800893A ES 9800893 A ES9800893 A ES 9800893A ES 2146537 B1 ES2146537 B1 ES 2146537B1
Authority
ES
Spain
Prior art keywords
hall effect
movements
effect sensors
sensors
immobilized
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
ES9800893A
Other languages
Spanish (es)
Other versions
ES2146537A1 (en
Inventor
Garcia Cosme Salas
Fernandez Fernando Rodriguez
Ruiz Blas Torres
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Universidad de Sevilla
Original Assignee
Universidad de Sevilla
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Universidad de Sevilla filed Critical Universidad de Sevilla
Priority to ES9800893A priority Critical patent/ES2146537B1/en
Publication of ES2146537A1 publication Critical patent/ES2146537A1/en
Application granted granted Critical
Publication of ES2146537B1 publication Critical patent/ES2146537B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Eye Examination Apparatus (AREA)

Abstract

Sistema de registro de los movimientos y la posición ocular basado en sensores de efecto Hall, de aplicación en sujetos no inmovilizados. La presente invención se refiere a un sistema para la medida y el registro de los movimientos oculares basado en sensores de efecto Hall, de aplicación en sujetos no inmovilizados. El sistema incluye un conjunto de sensores de efecto Hall colocados, en ejes ortogonales entre sí, sobre una estructura metálica fijada a los huesos de la órbita o del cráneo, que detectan la posición en el espacio de uno o varios magnetos de alta potencia que se fijan en el globo ocular u otra región cuyos movimientos se desea medir. Las señales de salida de los sensores de efecto Hall, para el componente horizontal y vertical del movimiento, consisten en unas señales analógicas de amplitud proporcional a la distancia entre los sensores y magnetos. Por lo tanto, estas señales son proporcionales a los componentes horizontal y vertical de posición del globo ocular en su órbita,e indica la posición ocular en cada instante tras una calibración inicial. El sistema es aplicable a la detección y medida de respuestas motoras de pequeña amplitud (actividad respiratoria, respuesta palpebral y respuesta de la membrana nictitante en humanos y animales, movimientos de los miembros, etc).Movement and eye position recording system based on Hall effect sensors, applicable to non-immobilized subjects. The present invention relates to a system for measuring and recording eye movements based on Hall effect sensors, for application in non-immobilized subjects. The system includes a set of Hall effect sensors placed, in orthogonal axes with each other, on a metal structure fixed to the bones of the orbit or skull, which detect the position in space of one or several high-power magnets that are fixed in the eyeball or other region whose movements you want to measure. The output signals of the Hall effect sensors, for the horizontal and vertical movement component, consist of analog signals of amplitude proportional to the distance between the sensors and magnets. Therefore, these signals are proportional to the horizontal and vertical position components of the eyeball in its orbit, and indicates the ocular position at each instant after an initial calibration. The system is applicable to the detection and measurement of motor responses of small amplitude (respiratory activity, eyelid response and response of the nictitating membrane in humans and animals, limb movements, etc.).

ES9800893A 1997-07-28 1997-07-28 SYSTEM OF REGISTRATION OF MOVEMENTS AND OCULAR POSITION BASED ON SENSORS OF HALL EFFECT OF APPLICATION IN SUBJECTS NOT IMMOBILIZED. Expired - Fee Related ES2146537B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES9800893A ES2146537B1 (en) 1997-07-28 1997-07-28 SYSTEM OF REGISTRATION OF MOVEMENTS AND OCULAR POSITION BASED ON SENSORS OF HALL EFFECT OF APPLICATION IN SUBJECTS NOT IMMOBILIZED.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES9800893A ES2146537B1 (en) 1997-07-28 1997-07-28 SYSTEM OF REGISTRATION OF MOVEMENTS AND OCULAR POSITION BASED ON SENSORS OF HALL EFFECT OF APPLICATION IN SUBJECTS NOT IMMOBILIZED.

Publications (2)

Publication Number Publication Date
ES2146537A1 ES2146537A1 (en) 2000-08-01
ES2146537B1 true ES2146537B1 (en) 2001-03-01

Family

ID=8303610

Family Applications (1)

Application Number Title Priority Date Filing Date
ES9800893A Expired - Fee Related ES2146537B1 (en) 1997-07-28 1997-07-28 SYSTEM OF REGISTRATION OF MOVEMENTS AND OCULAR POSITION BASED ON SENSORS OF HALL EFFECT OF APPLICATION IN SUBJECTS NOT IMMOBILIZED.

Country Status (1)

Country Link
ES (1) ES2146537B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2573881B1 (en) * 2014-12-10 2017-01-05 Universidad De Sevilla Portable system for recording eye movements in small animals

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU433334A1 (en) * 1971-12-31 1974-06-25 Устройство Для Измерения Угловых Перш
EP0115391A3 (en) * 1983-01-27 1987-06-10 Optron, Inc. Hall-effect position sensor apparatus
US4972836A (en) * 1989-12-18 1990-11-27 General Electric Company Motion detector for high-resolution magnetic resonance imaging
US5293187A (en) * 1992-02-05 1994-03-08 Biocontrol Systems, Inc. Method and apparatus for eye tracking for convergence and strabismus measurement

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Publication number Publication date
ES2146537A1 (en) 2000-08-01

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