Solid-state, Transducers – Dynon Avionics EFIS-D10 Users Guide User Manual

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5/25/2005

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calculate and display compass heading independent of attitude.

Nit

A unit of illuminative brightness equal to one candle per square meter, measured perpendicular to the
rays of the source. The EFIS-D10’s LCD screen is rated at 450 nits. For comparison, laptop screens
usually are rated at about 250 to 300 nits.

Pressure
transducer

The EFIS-D10 uses three pressure transducers to measure the altitude, airspeed, and angle of attack.
The altitude pressure transducer measures the absolute pressure of the static port which is used in
calculating the barometric-based altitude. The airspeed and angle of attack pressure transducers are
differential pressure transducers that measure their respective ports verses the static port in order to
calculate airspeed and angle of attack.

Sleep Mode

The state that the unit enters when powered off via the POWER button. It does not completely power
off, but simply enters a very-low-power state monitoring battery voltages and keeping track of time.

Solid-state

Describes silicon transistor-based technology. The advantage of solid-state technology is that it
requires no moving parts and thus has fewer susceptibilities to mechanical failure.

Standby Mode

When in standby mode, the EFIS-D10 does not display anything on the screen. It consumes only
enough power to run the internal clock and charge the internal backup battery. To exit standby mode
and resume normal operation, press any one of the 6 menu keys.

Transducer

A sensor that converts a non-electrical value, such as acceleration or rotation rate, into a voltage,
which can be read by a microprocessor. The transducers on the EFIS-D10 are what allow it to
correctly display, attitude, heading, airspeed and altitude data.

TFT display

The Thin Film Transistor display is the most obvious and visible part of the EFIS-D10. Its
technology is the same as that of standard flat-panel PC displays. The model that the EFIS-D10 uses

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