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A MEASUREMENT SYSTEM FOR THREE-DIMENSIONAL OCULAR MOVEMENT USING THE MAGNETIC CONTACT LENS SENSOR AND A METHOD THEREOF
A MEASUREMENT SYSTEM FOR THREE-DIMENSIONAL OCULAR MOVEMENT USING THE MAGNETIC CONTACT LENS SENSOR AND A METHOD THEREOF
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机译：利用磁接触透镜传感器的三维眼动测量系统及其方法
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摘要
The magnetic field detection method utilizing contactless magnetic sensor contact lens (Magnetic Contact Lens Sensor) from the medical device that a clinical test to measure the eye movement analysis using, ; and the contact lens to be worn on the eyeball is a magnetic attachment of the subject, and a sensor for detecting a change in magnetic field in accordance with the eye movements , an amplifier that amplifies the detected voltage control signal to set the gain, and a filter for filtering the gain control voltage signal at a frequency band set by extracting only a component of the desired frequency band, the filtered analog voltage signal into a digital voltage signal conversion to the A / D converter and a digital voltage signal analysis changes in the magnetic field applied to each axis by extracting the result of the eye movement and the eye movement of the subject micro-controller in response to a control signal applied by the microcontroller the change in the magnetic field for each axis includes a display device for displaying a predetermined format. ; have the eye movements as the test for the clinical examination in the external magnetic field is formed, and by measuring this by the induced current Since the magnitude of the voltage that is measured by the rotation angle is derived in accordance with the eye movements as is, to check the convenience of the eye movement of the subject, without correction of the complex signal, and the patient is the eye movement or in situations eyes covering the eyes can be measured accurately.
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