1963/10/01 by D. A. Robinson · 3 citations
Engineering · #Acoustics #Arc (geometry) #Bladed Disk Vibration Dynamics #Contact lens #Dynamics and Control of Mechanical Systems #Electrical engineering #Electromagnetic coil #Engineering #Geophysics and Sensor Technology #Magnetic field #Magnetic flux #Mechanical engineering #Optics #Physics #Search coil #Voltage
paper · doi:10.1109/tbmel.1963.4322822
crossref issued 1963/10/01 · crossref published 1963/10/01 · crossref published-print 1963/10/01 · openalex publication_date 1963/10/01 · crossref created 2008/07/23 · openalex created_date 2016/06/24 · crossref deposited 2021/11/29 · openalex updated_date 2026/08/01 · crossref indexed 2026/08/05
With the subject exposed to an alternating magnetic field, eye position may be accurately recorded from the voltage generated in a coil of wire embedded in a scleral contact lens worn by the subject. Using two magnetic fields in quadrature phase and two coils on the lens, one may measure horizontal, vertical and torsional eye movements simultaneously. The instrument described has an accuracy and linearity of about 2 per cent of full scale, a resolution of 15 seconds of arc and a bandwidth of 1000 cyles per second.