www.fizoptika.com FIZOPTIKA Fiber Optic Gyroscopes. VG910 series. Information Guide
Version #8 of 25/05/2018 Page 5 of 20
1.5. Essential
The VG910 housing is silicone sealed and provides short term (about 120 hours) humidity protection. Condensed
moisture is a major cause of lifetime shortening. Wet FOG conditions must be avoided at all times during storage and
use.
To realize the device’s exceptional potential, it should be properly mounted and its data transmission should be correctly
arranged. If there are any doubts on the mounting method or application environments, please, contact
info@fizoptika.com
to avoid any erroneous action.
1.6. Electrical Characteristics
The FOG measures rotation using precise optical filtering and synchronous detection at 75kHz modulation frequency. It
requires a clean and stable, low noise 5Vdc power source or battery supply. Excitation voltages greater than 5.5 volts (or
reversing polarity) can cause some components to heat and eventually fail.
Short (ns-scale) pulses from power transients or from accidental shorting to grounds or to the objects under potential
may cause irreversible damage to the super luminescent diode (SLD). Voltage pulses may reach the SLD via capacitive
bridges existing for spatially separated objects. It is recommended to ensure smooth voltage transient at power-on (1-5
ms).
Connection diagrams of the 910 series models and description of the digital model output connector are presented
below.
VG910H
Connection Diagram
VG910F
Connection Diagram
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