Features: The microdis has a 100 element bargraph led scale and a 4 digit numeric 7mm display. Microdis is realized based on an ATMega128 Microcontroller, two MICREL led driver chips, two full instrumentation amplifiers from analog devices, providing high Impedance > 1MOhm to adapt easily on any measurement signal offers this instrument a high precision solution.
The scale programmable feature including shifting logarithmic or exponential scales to linear by regression factors including calibration enables less than <0,1% full scale error.
The instrument display is also featured with a artificial and configurable display damping which enables a smooth and stable display of the values but with the fast response of showing values with high dynamic change rate..
Also an auto-dimming function is applied to reduce illumination brightness to ambient values while night flight. The display is also NVG compatible for pilots wearing night vision goggles
power supplies are realized in switched technologies to serve the led driver with 1 amp at 3,3V. instrumentation amplifiers and controller does have separate power supplies to have a quiet supply of the amplifier stages.
Different display modes are programmable, bargraph in 1 or 3 dot or bar mode, coupled to the numeric, and/or separate numeric parameter display for “2in1” 2 parameters on one instrument
the “two in one” display version is realized for example fuel flow, fule flow kg/min on bargraph and available amount of consumable fuel on numeric display part.